data.polynomial.monomial | Mathlib porting status

Changes since the initial port

The following section lists changes to this file in mathlib3 and mathlib4 that occured after the initial port. Most recent changes are shown first. Hovering over a commit will show all commits associated with the same mathlib3 commit.

Changes in mathlib3

220f71ba

(last sync)

Changes in mathlib3port

mathlib3

mathlib3port

69c6a5a1

bump to nightly-2024-04-07-08

mathlib commit https://github.com/leanprover-community/mathlib/commit/65a1391a0106c9204fe45bc73a039f056558cb83

b03b8656

Diff

@@ -3,7 +3,7 @@ Copyright (c) 2018 Chris Hughes. All rights reserved.
 Released under Apache 2.0 license as described in the file LICENSE.
 Authors: Chris Hughes, Johannes Hölzl, Scott Morrison, Jens Wagemaker
 -/
-import Data.Polynomial.Basic
+import Algebra.Polynomial.Basic
 
 #align_import data.polynomial.monomial from "leanprover-community/mathlib"@"69c6a5a12d8a2b159f20933e60115a4f2de62b58"

69c6a5a1

bump to nightly-2024-03-17-08

mathlib commit https://github.com/leanprover-community/mathlib/commit/65a1391a0106c9204fe45bc73a039f056558cb83

22f01ce4

Diff

@@ -47,7 +47,7 @@ theorem card_support_le_one_iff_monomial {f : R[X]} :
   by
   constructor
   · intro H
-    rw [Finset.card_le_one_iff_subset_singleton] at H 
+    rw [Finset.card_le_one_iff_subset_singleton] at H
     rcases H with ⟨n, hn⟩
     refine' ⟨n, f.coeff n, _⟩
     ext i

69c6a5a1

bump to nightly-2023-12-28-06

mathlib commit https://github.com/leanprover-community/mathlib/commit/65a1391a0106c9204fe45bc73a039f056558cb83

c30f5587

Diff

@@ -59,7 +59,7 @@ theorem card_support_le_one_iff_monomial {f : R[X]} :
       simp [this, Ne.symm hi, coeff_monomial]
   · rintro ⟨n, a, rfl⟩
     rw [← Finset.card_singleton n]
-    apply Finset.card_le_of_subset
+    apply Finset.card_le_card
     exact support_monomial' _ _
 #align polynomial.card_support_le_one_iff_monomial Polynomial.card_support_le_one_iff_monomial
 -/

69c6a5a1

bump to nightly-2023-09-24-06

mathlib commit https://github.com/leanprover-community/mathlib/commit/ce64cd319bb6b3e82f31c2d38e79080d377be451

5655435f

Diff

@@ -3,7 +3,7 @@ Copyright (c) 2018 Chris Hughes. All rights reserved.
 Released under Apache 2.0 license as described in the file LICENSE.
 Authors: Chris Hughes, Johannes Hölzl, Scott Morrison, Jens Wagemaker
 -/
-import Mathbin.Data.Polynomial.Basic
+import Data.Polynomial.Basic
 
 #align_import data.polynomial.monomial from "leanprover-community/mathlib"@"69c6a5a12d8a2b159f20933e60115a4f2de62b58"

69c6a5a1

bump to nightly-2023-07-20-09

mathlib commit https://github.com/leanprover-community/mathlib/commit/8ea5598db6caeddde6cb734aa179cc2408dbd345

9c56d0dd

Diff

@@ -2,14 +2,11 @@
 Copyright (c) 2018 Chris Hughes. All rights reserved.
 Released under Apache 2.0 license as described in the file LICENSE.
 Authors: Chris Hughes, Johannes Hölzl, Scott Morrison, Jens Wagemaker
-
-! This file was ported from Lean 3 source module data.polynomial.monomial
-! leanprover-community/mathlib commit 69c6a5a12d8a2b159f20933e60115a4f2de62b58
-! Please do not edit these lines, except to modify the commit id
-! if you have ported upstream changes.
 -/
 import Mathbin.Data.Polynomial.Basic
 
+#align_import data.polynomial.monomial from "leanprover-community/mathlib"@"69c6a5a12d8a2b159f20933e60115a4f2de62b58"
+
 /-!
 # Univariate monomials

69c6a5a1

bump to nightly-2023-06-13-21

mathlib commit https://github.com/leanprover-community/mathlib/commit/9fb8964792b4237dac6200193a0d533f1b3f7423

829520ac

Diff

@@ -32,16 +32,19 @@ variable {R : Type u} {a b : R} {m n : ℕ}
 
 variable [Semiring R] {p q r : R[X]}
 
+#print Polynomial.monomial_one_eq_iff /-
 theorem monomial_one_eq_iff [Nontrivial R] {i j : ℕ} :
     (monomial i 1 : R[X]) = monomial j 1 ↔ i = j :=
   by
   simp_rw [← of_finsupp_single]
   exact add_monoid_algebra.of_injective.eq_iff
 #align polynomial.monomial_one_eq_iff Polynomial.monomial_one_eq_iff
+-/
 
 instance [Nontrivial R] : Infinite R[X] :=
   Infinite.of_injective (fun i => monomial i 1) fun m n h => by simpa [monomial_one_eq_iff] using h
 
+#print Polynomial.card_support_le_one_iff_monomial /-
 theorem card_support_le_one_iff_monomial {f : R[X]} :
     Finset.card f.support ≤ 1 ↔ ∃ n a, f = monomial n a :=
   by
@@ -62,7 +65,9 @@ theorem card_support_le_one_iff_monomial {f : R[X]} :
     apply Finset.card_le_of_subset
     exact support_monomial' _ _
 #align polynomial.card_support_le_one_iff_monomial Polynomial.card_support_le_one_iff_monomial
+-/
 
+#print Polynomial.ringHom_ext /-
 theorem ringHom_ext {S} [Semiring S] {f g : R[X] →+* S} (h₁ : ∀ a, f (C a) = g (C a))
     (h₂ : f X = g X) : f = g :=
   by
@@ -80,12 +85,15 @@ theorem ringHom_ext {S} [Semiring S] {f g : R[X] →+* S} (h₁ : ∀ a, f (C a)
       RingHom.coe_comp, RingEquiv.coe_toRingHom]
   rw [B, C, A]
 #align polynomial.ring_hom_ext Polynomial.ringHom_ext
+-/
 
+#print Polynomial.ringHom_ext' /-
 @[ext]
 theorem ringHom_ext' {S} [Semiring S] {f g : R[X] →+* S} (h₁ : f.comp C = g.comp C)
     (h₂ : f X = g X) : f = g :=
   ringHom_ext (RingHom.congr_fun h₁) h₂
 #align polynomial.ring_hom_ext' Polynomial.ringHom_ext'
+-/
 
 end Polynomial

69c6a5a1

bump to nightly-2023-06-01-16

mathlib commit https://github.com/leanprover-community/mathlib/commit/cca40788df1b8755d5baf17ab2f27dacc2e17acb

b9c87c70

Diff

@@ -47,7 +47,7 @@ theorem card_support_le_one_iff_monomial {f : R[X]} :
   by
   constructor
   · intro H
-    rw [Finset.card_le_one_iff_subset_singleton] at H
+    rw [Finset.card_le_one_iff_subset_singleton] at H 
     rcases H with ⟨n, hn⟩
     refine' ⟨n, f.coeff n, _⟩
     ext i

69c6a5a1

bump to nightly-2023-05-28-18

mathlib commit https://github.com/leanprover-community/mathlib/commit/917c3c072e487b3cccdbfeff17e75b40e45f66cb

8d353152

Diff

@@ -24,7 +24,7 @@ noncomputable section
 
 namespace Polynomial
 
-open Polynomial
+open scoped Polynomial
 
 universe u

69c6a5a1

bump to nightly-2023-05-28-06

mathlib commit https://github.com/leanprover-community/mathlib/commit/917c3c072e487b3cccdbfeff17e75b40e45f66cb

ba5d8b97

Diff

@@ -32,12 +32,6 @@ variable {R : Type u} {a b : R} {m n : ℕ}
 
 variable [Semiring R] {p q r : R[X]}
 
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-Case conversion may be inaccurate. Consider using '#align polynomial.monomial_one_eq_iff Polynomial.monomial_one_eq_iffₓ'. -/
 theorem monomial_one_eq_iff [Nontrivial R] {i j : ℕ} :
     (monomial i 1 : R[X]) = monomial j 1 ↔ i = j :=
   by
@@ -48,12 +42,6 @@ theorem monomial_one_eq_iff [Nontrivial R] {i j : ℕ} :
 instance [Nontrivial R] : Infinite R[X] :=
   Infinite.of_injective (fun i => monomial i 1) fun m n h => by simpa [monomial_one_eq_iff] using h
 
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-Case conversion may be inaccurate. Consider using '#align polynomial.card_support_le_one_iff_monomial Polynomial.card_support_le_one_iff_monomialₓ'. -/
 theorem card_support_le_one_iff_monomial {f : R[X]} :
     Finset.card f.support ≤ 1 ↔ ∃ n a, f = monomial n a :=
   by
@@ -75,9 +63,6 @@ theorem card_support_le_one_iff_monomial {f : R[X]} :
     exact support_monomial' _ _
 #align polynomial.card_support_le_one_iff_monomial Polynomial.card_support_le_one_iff_monomial
 
-/- warning: polynomial.ring_hom_ext -> Polynomial.ringHom_ext is a dubious translation:
-<too large>
-Case conversion may be inaccurate. Consider using '#align polynomial.ring_hom_ext Polynomial.ringHom_extₓ'. -/
 theorem ringHom_ext {S} [Semiring S] {f g : R[X] →+* S} (h₁ : ∀ a, f (C a) = g (C a))
     (h₂ : f X = g X) : f = g :=
   by
@@ -96,12 +81,6 @@ theorem ringHom_ext {S} [Semiring S] {f g : R[X] →+* S} (h₁ : ∀ a, f (C a)
   rw [B, C, A]
 #align polynomial.ring_hom_ext Polynomial.ringHom_ext
 
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-Case conversion may be inaccurate. Consider using '#align polynomial.ring_hom_ext' Polynomial.ringHom_ext'ₓ'. -/
 @[ext]
 theorem ringHom_ext' {S} [Semiring S] {f g : R[X] →+* S} (h₁ : f.comp C = g.comp C)
     (h₂ : f X = g X) : f = g :=

69c6a5a1

bump to nightly-2023-05-28-04

mathlib commit https://github.com/leanprover-community/mathlib/commit/917c3c072e487b3cccdbfeff17e75b40e45f66cb

6797a637

Diff

@@ -87,16 +87,10 @@ theorem ringHom_ext {S} [Semiring S] {f g : R[X] →+* S} (h₁ : ∀ a, f (C a)
     ext
     · simp [h₁, RingEquiv.toRingHom_eq_coe]
     · simpa [RingEquiv.toRingHom_eq_coe] using h₂
-  have B : f = f'.comp (to_finsupp_iso R) :=
-    by
-    rw [hf', RingHom.comp_assoc]
-    ext x
+  have B : f = f'.comp (to_finsupp_iso R) := by rw [hf', RingHom.comp_assoc]; ext x;
     simp only [RingEquiv.toRingHom_eq_coe, RingEquiv.symm_apply_apply, Function.comp_apply,
       RingHom.coe_comp, RingEquiv.coe_toRingHom]
-  have C : g = g'.comp (to_finsupp_iso R) :=
-    by
-    rw [hg', RingHom.comp_assoc]
-    ext x
+  have C : g = g'.comp (to_finsupp_iso R) := by rw [hg', RingHom.comp_assoc]; ext x;
     simp only [RingEquiv.toRingHom_eq_coe, RingEquiv.symm_apply_apply, Function.comp_apply,
       RingHom.coe_comp, RingEquiv.coe_toRingHom]
   rw [B, C, A]

69c6a5a1

bump to nightly-2023-05-28-03

mathlib commit https://github.com/leanprover-community/mathlib/commit/917c3c072e487b3cccdbfeff17e75b40e45f66cb

6c6011cf

Diff

@@ -76,10 +76,7 @@ theorem card_support_le_one_iff_monomial {f : R[X]} :
 #align polynomial.card_support_le_one_iff_monomial Polynomial.card_support_le_one_iff_monomial
 
 /- warning: polynomial.ring_hom_ext -> Polynomial.ringHom_ext is a dubious translation:
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(NonAssocSemiring.toNonUnitalNonAssocSemiring.{u2} R (Semiring.toNonAssocSemiring.{u2} R _inst_1)) (NonAssocSemiring.toNonUnitalNonAssocSemiring.{u2} (Polynomial.{u2} R _inst_1) (Semiring.toNonAssocSemiring.{u2} (Polynomial.{u2} R _inst_1) (Polynomial.semiring.{u2} R _inst_1))) (RingHomClass.toNonUnitalRingHomClass.{u2, u2, u2} (RingHom.{u2, u2} R (Polynomial.{u2} R _inst_1) (Semiring.toNonAssocSemiring.{u2} R _inst_1) (Semiring.toNonAssocSemiring.{u2} (Polynomial.{u2} R _inst_1) (Polynomial.semiring.{u2} R _inst_1))) R (Polynomial.{u2} R _inst_1) (Semiring.toNonAssocSemiring.{u2} R _inst_1) (Semiring.toNonAssocSemiring.{u2} (Polynomial.{u2} R _inst_1) (Polynomial.semiring.{u2} R _inst_1)) (RingHom.instRingHomClassRingHom.{u2, u2} R (Polynomial.{u2} R _inst_1) (Semiring.toNonAssocSemiring.{u2} R _inst_1) (Semiring.toNonAssocSemiring.{u2} (Polynomial.{u2} R _inst_1) (Polynomial.semiring.{u2} R _inst_1)))))) (Polynomial.C.{u2} R _inst_1) a))) -> (Eq.{succ u1} ((fun (x._@.Mathlib.Algebra.Hom.Group._hyg.2397 : Polynomial.{u2} R _inst_1) => S) (Polynomial.X.{u2} R _inst_1)) (FunLike.coe.{max (succ u2) (succ u1), succ u2, succ u1} (RingHom.{u2, u1} (Polynomial.{u2} R _inst_1) S (Semiring.toNonAssocSemiring.{u2} (Polynomial.{u2} R _inst_1) (Polynomial.semiring.{u2} R _inst_1)) (Semiring.toNonAssocSemiring.{u1} S _inst_2)) (Polynomial.{u2} R _inst_1) (fun (_x : Polynomial.{u2} R _inst_1) => (fun (x._@.Mathlib.Algebra.Hom.Group._hyg.2397 : Polynomial.{u2} R _inst_1) => S) _x) (MulHomClass.toFunLike.{max u2 u1, u2, u1} (RingHom.{u2, u1} (Polynomial.{u2} R _inst_1) S (Semiring.toNonAssocSemiring.{u2} (Polynomial.{u2} R _inst_1) (Polynomial.semiring.{u2} R _inst_1)) (Semiring.toNonAssocSemiring.{u1} S _inst_2)) (Polynomial.{u2} R _inst_1) S (NonUnitalNonAssocSemiring.toMul.{u2} (Polynomial.{u2} R _inst_1) (NonAssocSemiring.toNonUnitalNonAssocSemiring.{u2} (Polynomial.{u2} R _inst_1) (Semiring.toNonAssocSemiring.{u2} (Polynomial.{u2} R _inst_1) (Polynomial.semiring.{u2} R _inst_1)))) (NonUnitalNonAssocSemiring.toMul.{u1} S (NonAssocSemiring.toNonUnitalNonAssocSemiring.{u1} S (Semiring.toNonAssocSemiring.{u1} S _inst_2))) (NonUnitalRingHomClass.toMulHomClass.{max u2 u1, u2, u1} (RingHom.{u2, u1} (Polynomial.{u2} R _inst_1) S (Semiring.toNonAssocSemiring.{u2} (Polynomial.{u2} R _inst_1) (Polynomial.semiring.{u2} R _inst_1)) (Semiring.toNonAssocSemiring.{u1} S _inst_2)) (Polynomial.{u2} R _inst_1) S (NonAssocSemiring.toNonUnitalNonAssocSemiring.{u2} (Polynomial.{u2} R _inst_1) (Semiring.toNonAssocSemiring.{u2} (Polynomial.{u2} R _inst_1) (Polynomial.semiring.{u2} R _inst_1))) (NonAssocSemiring.toNonUnitalNonAssocSemiring.{u1} S (Semiring.toNonAssocSemiring.{u1} S _inst_2)) (RingHomClass.toNonUnitalRingHomClass.{max u2 u1, u2, u1} (RingHom.{u2, u1} (Polynomial.{u2} R _inst_1) S (Semiring.toNonAssocSemiring.{u2} (Polynomial.{u2} R _inst_1) (Polynomial.semiring.{u2} R _inst_1)) (Semiring.toNonAssocSemiring.{u1} S _inst_2)) (Polynomial.{u2} R _inst_1) S (Semiring.toNonAssocSemiring.{u2} (Polynomial.{u2} R _inst_1) (Polynomial.semiring.{u2} R _inst_1)) (Semiring.toNonAssocSemiring.{u1} S _inst_2) (RingHom.instRingHomClassRingHom.{u2, u1} (Polynomial.{u2} R _inst_1) S (Semiring.toNonAssocSemiring.{u2} (Polynomial.{u2} R _inst_1) (Polynomial.semiring.{u2} R _inst_1)) (Semiring.toNonAssocSemiring.{u1} S _inst_2))))) f (Polynomial.X.{u2} R _inst_1)) (FunLike.coe.{max (succ u2) (succ u1), succ u2, succ u1} (RingHom.{u2, u1} (Polynomial.{u2} R _inst_1) S (Semiring.toNonAssocSemiring.{u2} (Polynomial.{u2} R _inst_1) (Polynomial.semiring.{u2} R _inst_1)) (Semiring.toNonAssocSemiring.{u1} S _inst_2)) (Polynomial.{u2} R _inst_1) (fun (_x : Polynomial.{u2} R _inst_1) => (fun (x._@.Mathlib.Algebra.Hom.Group._hyg.2397 : Polynomial.{u2} R _inst_1) => S) _x) (MulHomClass.toFunLike.{max u2 u1, u2, u1} (RingHom.{u2, u1} (Polynomial.{u2} R _inst_1) S (Semiring.toNonAssocSemiring.{u2} (Polynomial.{u2} R _inst_1) 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(NonAssocSemiring.toNonUnitalNonAssocSemiring.{u1} S (Semiring.toNonAssocSemiring.{u1} S _inst_2)) (RingHomClass.toNonUnitalRingHomClass.{max u2 u1, u2, u1} (RingHom.{u2, u1} (Polynomial.{u2} R _inst_1) S (Semiring.toNonAssocSemiring.{u2} (Polynomial.{u2} R _inst_1) (Polynomial.semiring.{u2} R _inst_1)) (Semiring.toNonAssocSemiring.{u1} S _inst_2)) (Polynomial.{u2} R _inst_1) S (Semiring.toNonAssocSemiring.{u2} (Polynomial.{u2} R _inst_1) (Polynomial.semiring.{u2} R _inst_1)) (Semiring.toNonAssocSemiring.{u1} S _inst_2) (RingHom.instRingHomClassRingHom.{u2, u1} (Polynomial.{u2} R _inst_1) S (Semiring.toNonAssocSemiring.{u2} (Polynomial.{u2} R _inst_1) (Polynomial.semiring.{u2} R _inst_1)) (Semiring.toNonAssocSemiring.{u1} S _inst_2))))) g (Polynomial.X.{u2} R _inst_1))) -> (Eq.{max (succ u2) (succ u1)} (RingHom.{u2, u1} (Polynomial.{u2} R _inst_1) S (Semiring.toNonAssocSemiring.{u2} (Polynomial.{u2} R _inst_1) (Polynomial.semiring.{u2} R _inst_1)) (Semiring.toNonAssocSemiring.{u1} S _inst_2)) f g)
+<too large>
 Case conversion may be inaccurate. Consider using '#align polynomial.ring_hom_ext Polynomial.ringHom_extₓ'. -/
 theorem ringHom_ext {S} [Semiring S] {f g : R[X] →+* S} (h₁ : ∀ a, f (C a) = g (C a))
     (h₂ : f X = g X) : f = g :=

69c6a5a1

bump to nightly-2023-05-24-06

mathlib commit https://github.com/leanprover-community/mathlib/commit/8d33f09cd7089ecf074b4791907588245aec5d1b

fbc7b476

Diff

@@ -36,7 +36,7 @@ variable [Semiring R] {p q r : R[X]}
 lean 3 declaration is
   forall {R : Type.{u1}} [_inst_1 : Semiring.{u1} R] [_inst_2 : Nontrivial.{u1} R] {i : Nat} {j : Nat}, Iff (Eq.{succ u1} (Polynomial.{u1} R _inst_1) (coeFn.{succ u1, succ u1} (LinearMap.{u1, u1, u1, u1} R R _inst_1 _inst_1 (RingHom.id.{u1} R (Semiring.toNonAssocSemiring.{u1} R _inst_1)) R (Polynomial.{u1} R _inst_1) (NonUnitalNonAssocSemiring.toAddCommMonoid.{u1} R (NonAssocSemiring.toNonUnitalNonAssocSemiring.{u1} R (Semiring.toNonAssocSemiring.{u1} R _inst_1))) (NonUnitalNonAssocSemiring.toAddCommMonoid.{u1} (Polynomial.{u1} R _inst_1) (NonAssocSemiring.toNonUnitalNonAssocSemiring.{u1} (Polynomial.{u1} R _inst_1) (Semiring.toNonAssocSemiring.{u1} (Polynomial.{u1} R _inst_1) (Polynomial.semiring.{u1} R _inst_1)))) (Semiring.toModule.{u1} R _inst_1) (Polynomial.module.{u1, u1} R _inst_1 R _inst_1 (Semiring.toModule.{u1} R _inst_1))) (fun (_x : LinearMap.{u1, u1, u1, u1} R R _inst_1 _inst_1 (RingHom.id.{u1} R (Semiring.toNonAssocSemiring.{u1} R _inst_1)) R (Polynomial.{u1} R _inst_1) (NonUnitalNonAssocSemiring.toAddCommMonoid.{u1} R (NonAssocSemiring.toNonUnitalNonAssocSemiring.{u1} R (Semiring.toNonAssocSemiring.{u1} R _inst_1))) (NonUnitalNonAssocSemiring.toAddCommMonoid.{u1} (Polynomial.{u1} R _inst_1) (NonAssocSemiring.toNonUnitalNonAssocSemiring.{u1} (Polynomial.{u1} R _inst_1) (Semiring.toNonAssocSemiring.{u1} (Polynomial.{u1} R _inst_1) (Polynomial.semiring.{u1} R _inst_1)))) (Semiring.toModule.{u1} R _inst_1) (Polynomial.module.{u1, u1} R _inst_1 R _inst_1 (Semiring.toModule.{u1} R _inst_1))) => R -> (Polynomial.{u1} R _inst_1)) (LinearMap.hasCoeToFun.{u1, u1, u1, u1} R R R (Polynomial.{u1} R _inst_1) _inst_1 _inst_1 (NonUnitalNonAssocSemiring.toAddCommMonoid.{u1} R (NonAssocSemiring.toNonUnitalNonAssocSemiring.{u1} R (Semiring.toNonAssocSemiring.{u1} R _inst_1))) (NonUnitalNonAssocSemiring.toAddCommMonoid.{u1} (Polynomial.{u1} R _inst_1) (NonAssocSemiring.toNonUnitalNonAssocSemiring.{u1} (Polynomial.{u1} R _inst_1) (Semiring.toNonAssocSemiring.{u1} (Polynomial.{u1} R _inst_1) (Polynomial.semiring.{u1} R _inst_1)))) (Semiring.toModule.{u1} R _inst_1) (Polynomial.module.{u1, u1} R _inst_1 R _inst_1 (Semiring.toModule.{u1} R _inst_1)) (RingHom.id.{u1} R (Semiring.toNonAssocSemiring.{u1} R _inst_1))) (Polynomial.monomial.{u1} R _inst_1 i) (OfNat.ofNat.{u1} R 1 (OfNat.mk.{u1} R 1 (One.one.{u1} R (AddMonoidWithOne.toOne.{u1} R (AddCommMonoidWithOne.toAddMonoidWithOne.{u1} R (NonAssocSemiring.toAddCommMonoidWithOne.{u1} R (Semiring.toNonAssocSemiring.{u1} R _inst_1)))))))) (coeFn.{succ u1, succ u1} (LinearMap.{u1, u1, u1, u1} R R _inst_1 _inst_1 (RingHom.id.{u1} R (Semiring.toNonAssocSemiring.{u1} R _inst_1)) R (Polynomial.{u1} R _inst_1) (NonUnitalNonAssocSemiring.toAddCommMonoid.{u1} R (NonAssocSemiring.toNonUnitalNonAssocSemiring.{u1} R (Semiring.toNonAssocSemiring.{u1} R _inst_1))) (NonUnitalNonAssocSemiring.toAddCommMonoid.{u1} (Polynomial.{u1} R _inst_1) (NonAssocSemiring.toNonUnitalNonAssocSemiring.{u1} (Polynomial.{u1} R _inst_1) (Semiring.toNonAssocSemiring.{u1} (Polynomial.{u1} R _inst_1) (Polynomial.semiring.{u1} R _inst_1)))) (Semiring.toModule.{u1} R _inst_1) (Polynomial.module.{u1, u1} R _inst_1 R _inst_1 (Semiring.toModule.{u1} R _inst_1))) (fun (_x : LinearMap.{u1, u1, u1, u1} R R _inst_1 _inst_1 (RingHom.id.{u1} R (Semiring.toNonAssocSemiring.{u1} R _inst_1)) R (Polynomial.{u1} R _inst_1) (NonUnitalNonAssocSemiring.toAddCommMonoid.{u1} R (NonAssocSemiring.toNonUnitalNonAssocSemiring.{u1} R (Semiring.toNonAssocSemiring.{u1} R _inst_1))) (NonUnitalNonAssocSemiring.toAddCommMonoid.{u1} (Polynomial.{u1} R _inst_1) (NonAssocSemiring.toNonUnitalNonAssocSemiring.{u1} (Polynomial.{u1} R _inst_1) (Semiring.toNonAssocSemiring.{u1} (Polynomial.{u1} R _inst_1) (Polynomial.semiring.{u1} R _inst_1)))) (Semiring.toModule.{u1} R _inst_1) (Polynomial.module.{u1, u1} R _inst_1 R _inst_1 (Semiring.toModule.{u1} R _inst_1))) => R -> (Polynomial.{u1} R _inst_1)) (LinearMap.hasCoeToFun.{u1, u1, u1, u1} R R R (Polynomial.{u1} R _inst_1) _inst_1 _inst_1 (NonUnitalNonAssocSemiring.toAddCommMonoid.{u1} R (NonAssocSemiring.toNonUnitalNonAssocSemiring.{u1} R (Semiring.toNonAssocSemiring.{u1} R _inst_1))) (NonUnitalNonAssocSemiring.toAddCommMonoid.{u1} (Polynomial.{u1} R _inst_1) (NonAssocSemiring.toNonUnitalNonAssocSemiring.{u1} (Polynomial.{u1} R _inst_1) (Semiring.toNonAssocSemiring.{u1} (Polynomial.{u1} R _inst_1) (Polynomial.semiring.{u1} R _inst_1)))) (Semiring.toModule.{u1} R _inst_1) (Polynomial.module.{u1, u1} R _inst_1 R _inst_1 (Semiring.toModule.{u1} R _inst_1)) (RingHom.id.{u1} R (Semiring.toNonAssocSemiring.{u1} R _inst_1))) (Polynomial.monomial.{u1} R _inst_1 j) (OfNat.ofNat.{u1} R 1 (OfNat.mk.{u1} R 1 (One.one.{u1} R (AddMonoidWithOne.toOne.{u1} R (AddCommMonoidWithOne.toAddMonoidWithOne.{u1} R (NonAssocSemiring.toAddCommMonoidWithOne.{u1} R (Semiring.toNonAssocSemiring.{u1} R _inst_1))))))))) (Eq.{1} Nat i j)
 but is expected to have type
-  forall {R : Type.{u1}} [_inst_1 : Semiring.{u1} R] [_inst_2 : Nontrivial.{u1} R] {i : Nat} {j : Nat}, Iff (Eq.{succ u1} ((fun (x._@.Mathlib.Algebra.Module.LinearMap._hyg.6191 : R) => Polynomial.{u1} R _inst_1) (OfNat.ofNat.{u1} R 1 (One.toOfNat1.{u1} R (Semiring.toOne.{u1} R _inst_1)))) (FunLike.coe.{succ u1, succ u1, succ u1} (LinearMap.{u1, u1, u1, u1} R R _inst_1 _inst_1 (RingHom.id.{u1} R (Semiring.toNonAssocSemiring.{u1} R _inst_1)) R (Polynomial.{u1} R _inst_1) (NonUnitalNonAssocSemiring.toAddCommMonoid.{u1} R (NonAssocSemiring.toNonUnitalNonAssocSemiring.{u1} R (Semiring.toNonAssocSemiring.{u1} R _inst_1))) (NonUnitalNonAssocSemiring.toAddCommMonoid.{u1} (Polynomial.{u1} R _inst_1) (NonAssocSemiring.toNonUnitalNonAssocSemiring.{u1} (Polynomial.{u1} R _inst_1) (Semiring.toNonAssocSemiring.{u1} (Polynomial.{u1} R _inst_1) (Polynomial.semiring.{u1} R _inst_1)))) (Semiring.toModule.{u1} R _inst_1) (Polynomial.module.{u1, u1} R _inst_1 R _inst_1 (Semiring.toModule.{u1} R _inst_1))) R (fun (_x : R) => (fun (x._@.Mathlib.Algebra.Module.LinearMap._hyg.6191 : R) => Polynomial.{u1} R _inst_1) _x) (LinearMap.instFunLikeLinearMap.{u1, u1, u1, u1} R R R (Polynomial.{u1} R _inst_1) _inst_1 _inst_1 (NonUnitalNonAssocSemiring.toAddCommMonoid.{u1} R (NonAssocSemiring.toNonUnitalNonAssocSemiring.{u1} R (Semiring.toNonAssocSemiring.{u1} R _inst_1))) (NonUnitalNonAssocSemiring.toAddCommMonoid.{u1} (Polynomial.{u1} R _inst_1) (NonAssocSemiring.toNonUnitalNonAssocSemiring.{u1} (Polynomial.{u1} R _inst_1) (Semiring.toNonAssocSemiring.{u1} (Polynomial.{u1} R _inst_1) (Polynomial.semiring.{u1} R _inst_1)))) (Semiring.toModule.{u1} R _inst_1) (Polynomial.module.{u1, u1} R _inst_1 R _inst_1 (Semiring.toModule.{u1} R _inst_1)) (RingHom.id.{u1} R (Semiring.toNonAssocSemiring.{u1} R _inst_1))) (Polynomial.monomial.{u1} R _inst_1 i) (OfNat.ofNat.{u1} R 1 (One.toOfNat1.{u1} R (Semiring.toOne.{u1} R _inst_1)))) (FunLike.coe.{succ u1, succ u1, succ u1} (LinearMap.{u1, u1, u1, u1} R R _inst_1 _inst_1 (RingHom.id.{u1} R (Semiring.toNonAssocSemiring.{u1} R _inst_1)) R (Polynomial.{u1} R _inst_1) (NonUnitalNonAssocSemiring.toAddCommMonoid.{u1} R (NonAssocSemiring.toNonUnitalNonAssocSemiring.{u1} R (Semiring.toNonAssocSemiring.{u1} R _inst_1))) (NonUnitalNonAssocSemiring.toAddCommMonoid.{u1} (Polynomial.{u1} R _inst_1) (NonAssocSemiring.toNonUnitalNonAssocSemiring.{u1} (Polynomial.{u1} R _inst_1) (Semiring.toNonAssocSemiring.{u1} (Polynomial.{u1} R _inst_1) (Polynomial.semiring.{u1} R _inst_1)))) (Semiring.toModule.{u1} R _inst_1) (Polynomial.module.{u1, u1} R _inst_1 R _inst_1 (Semiring.toModule.{u1} R _inst_1))) R (fun (_x : R) => (fun (x._@.Mathlib.Algebra.Module.LinearMap._hyg.6191 : R) => Polynomial.{u1} R _inst_1) _x) (LinearMap.instFunLikeLinearMap.{u1, u1, u1, u1} R R R (Polynomial.{u1} R _inst_1) _inst_1 _inst_1 (NonUnitalNonAssocSemiring.toAddCommMonoid.{u1} R (NonAssocSemiring.toNonUnitalNonAssocSemiring.{u1} R (Semiring.toNonAssocSemiring.{u1} R _inst_1))) (NonUnitalNonAssocSemiring.toAddCommMonoid.{u1} (Polynomial.{u1} R _inst_1) (NonAssocSemiring.toNonUnitalNonAssocSemiring.{u1} (Polynomial.{u1} R _inst_1) (Semiring.toNonAssocSemiring.{u1} (Polynomial.{u1} R _inst_1) (Polynomial.semiring.{u1} R _inst_1)))) (Semiring.toModule.{u1} R _inst_1) (Polynomial.module.{u1, u1} R _inst_1 R _inst_1 (Semiring.toModule.{u1} R _inst_1)) (RingHom.id.{u1} R (Semiring.toNonAssocSemiring.{u1} R _inst_1))) (Polynomial.monomial.{u1} R _inst_1 j) (OfNat.ofNat.{u1} R 1 (One.toOfNat1.{u1} R (Semiring.toOne.{u1} R _inst_1))))) (Eq.{1} Nat i j)
+  forall {R : Type.{u1}} [_inst_1 : Semiring.{u1} R] [_inst_2 : Nontrivial.{u1} R] {i : Nat} {j : Nat}, Iff (Eq.{succ u1} ((fun (x._@.Mathlib.Algebra.Module.LinearMap._hyg.6193 : R) => Polynomial.{u1} R _inst_1) (OfNat.ofNat.{u1} R 1 (One.toOfNat1.{u1} R (Semiring.toOne.{u1} R _inst_1)))) (FunLike.coe.{succ u1, succ u1, succ u1} (LinearMap.{u1, u1, u1, u1} R R _inst_1 _inst_1 (RingHom.id.{u1} R (Semiring.toNonAssocSemiring.{u1} R _inst_1)) R (Polynomial.{u1} R _inst_1) (NonUnitalNonAssocSemiring.toAddCommMonoid.{u1} R (NonAssocSemiring.toNonUnitalNonAssocSemiring.{u1} R (Semiring.toNonAssocSemiring.{u1} R _inst_1))) (NonUnitalNonAssocSemiring.toAddCommMonoid.{u1} (Polynomial.{u1} R _inst_1) (NonAssocSemiring.toNonUnitalNonAssocSemiring.{u1} (Polynomial.{u1} R _inst_1) (Semiring.toNonAssocSemiring.{u1} (Polynomial.{u1} R _inst_1) (Polynomial.semiring.{u1} R _inst_1)))) (Semiring.toModule.{u1} R _inst_1) (Polynomial.module.{u1, u1} R _inst_1 R _inst_1 (Semiring.toModule.{u1} R _inst_1))) R (fun (_x : R) => (fun (x._@.Mathlib.Algebra.Module.LinearMap._hyg.6193 : R) => Polynomial.{u1} R _inst_1) _x) (LinearMap.instFunLikeLinearMap.{u1, u1, u1, u1} R R R (Polynomial.{u1} R _inst_1) _inst_1 _inst_1 (NonUnitalNonAssocSemiring.toAddCommMonoid.{u1} R (NonAssocSemiring.toNonUnitalNonAssocSemiring.{u1} R (Semiring.toNonAssocSemiring.{u1} R _inst_1))) (NonUnitalNonAssocSemiring.toAddCommMonoid.{u1} (Polynomial.{u1} R _inst_1) (NonAssocSemiring.toNonUnitalNonAssocSemiring.{u1} (Polynomial.{u1} R _inst_1) (Semiring.toNonAssocSemiring.{u1} (Polynomial.{u1} R _inst_1) (Polynomial.semiring.{u1} R _inst_1)))) (Semiring.toModule.{u1} R _inst_1) (Polynomial.module.{u1, u1} R _inst_1 R _inst_1 (Semiring.toModule.{u1} R _inst_1)) (RingHom.id.{u1} R (Semiring.toNonAssocSemiring.{u1} R _inst_1))) (Polynomial.monomial.{u1} R _inst_1 i) (OfNat.ofNat.{u1} R 1 (One.toOfNat1.{u1} R (Semiring.toOne.{u1} R _inst_1)))) (FunLike.coe.{succ u1, succ u1, succ u1} (LinearMap.{u1, u1, u1, u1} R R _inst_1 _inst_1 (RingHom.id.{u1} R (Semiring.toNonAssocSemiring.{u1} R _inst_1)) R (Polynomial.{u1} R _inst_1) (NonUnitalNonAssocSemiring.toAddCommMonoid.{u1} R (NonAssocSemiring.toNonUnitalNonAssocSemiring.{u1} R (Semiring.toNonAssocSemiring.{u1} R _inst_1))) (NonUnitalNonAssocSemiring.toAddCommMonoid.{u1} (Polynomial.{u1} R _inst_1) (NonAssocSemiring.toNonUnitalNonAssocSemiring.{u1} (Polynomial.{u1} R _inst_1) (Semiring.toNonAssocSemiring.{u1} (Polynomial.{u1} R _inst_1) (Polynomial.semiring.{u1} R _inst_1)))) (Semiring.toModule.{u1} R _inst_1) (Polynomial.module.{u1, u1} R _inst_1 R _inst_1 (Semiring.toModule.{u1} R _inst_1))) R (fun (_x : R) => (fun (x._@.Mathlib.Algebra.Module.LinearMap._hyg.6193 : R) => Polynomial.{u1} R _inst_1) _x) (LinearMap.instFunLikeLinearMap.{u1, u1, u1, u1} R R R (Polynomial.{u1} R _inst_1) _inst_1 _inst_1 (NonUnitalNonAssocSemiring.toAddCommMonoid.{u1} R (NonAssocSemiring.toNonUnitalNonAssocSemiring.{u1} R (Semiring.toNonAssocSemiring.{u1} R _inst_1))) (NonUnitalNonAssocSemiring.toAddCommMonoid.{u1} (Polynomial.{u1} R _inst_1) (NonAssocSemiring.toNonUnitalNonAssocSemiring.{u1} (Polynomial.{u1} R _inst_1) (Semiring.toNonAssocSemiring.{u1} (Polynomial.{u1} R _inst_1) (Polynomial.semiring.{u1} R _inst_1)))) (Semiring.toModule.{u1} R _inst_1) (Polynomial.module.{u1, u1} R _inst_1 R _inst_1 (Semiring.toModule.{u1} R _inst_1)) (RingHom.id.{u1} R (Semiring.toNonAssocSemiring.{u1} R _inst_1))) (Polynomial.monomial.{u1} R _inst_1 j) (OfNat.ofNat.{u1} R 1 (One.toOfNat1.{u1} R (Semiring.toOne.{u1} R _inst_1))))) (Eq.{1} Nat i j)
 Case conversion may be inaccurate. Consider using '#align polynomial.monomial_one_eq_iff Polynomial.monomial_one_eq_iffₓ'. -/
 theorem monomial_one_eq_iff [Nontrivial R] {i j : ℕ} :
     (monomial i 1 : R[X]) = monomial j 1 ↔ i = j :=
@@ -52,7 +52,7 @@ instance [Nontrivial R] : Infinite R[X] :=
 lean 3 declaration is
   forall {R : Type.{u1}} [_inst_1 : Semiring.{u1} R] {f : Polynomial.{u1} R _inst_1}, Iff (LE.le.{0} Nat Nat.hasLe (Finset.card.{0} Nat (Polynomial.support.{u1} R _inst_1 f)) (OfNat.ofNat.{0} Nat 1 (OfNat.mk.{0} Nat 1 (One.one.{0} Nat Nat.hasOne)))) (Exists.{1} Nat (fun (n : Nat) => Exists.{succ u1} R (fun (a : R) => Eq.{succ u1} (Polynomial.{u1} R _inst_1) f (coeFn.{succ u1, succ u1} (LinearMap.{u1, u1, u1, u1} R R _inst_1 _inst_1 (RingHom.id.{u1} R (Semiring.toNonAssocSemiring.{u1} R _inst_1)) R (Polynomial.{u1} R _inst_1) (NonUnitalNonAssocSemiring.toAddCommMonoid.{u1} R (NonAssocSemiring.toNonUnitalNonAssocSemiring.{u1} R (Semiring.toNonAssocSemiring.{u1} R _inst_1))) (NonUnitalNonAssocSemiring.toAddCommMonoid.{u1} (Polynomial.{u1} R _inst_1) (NonAssocSemiring.toNonUnitalNonAssocSemiring.{u1} (Polynomial.{u1} R _inst_1) (Semiring.toNonAssocSemiring.{u1} (Polynomial.{u1} R _inst_1) (Polynomial.semiring.{u1} R _inst_1)))) (Semiring.toModule.{u1} R _inst_1) (Polynomial.module.{u1, u1} R _inst_1 R _inst_1 (Semiring.toModule.{u1} R _inst_1))) (fun (_x : LinearMap.{u1, u1, u1, u1} R R _inst_1 _inst_1 (RingHom.id.{u1} R (Semiring.toNonAssocSemiring.{u1} R _inst_1)) R (Polynomial.{u1} R _inst_1) (NonUnitalNonAssocSemiring.toAddCommMonoid.{u1} R (NonAssocSemiring.toNonUnitalNonAssocSemiring.{u1} R (Semiring.toNonAssocSemiring.{u1} R _inst_1))) (NonUnitalNonAssocSemiring.toAddCommMonoid.{u1} (Polynomial.{u1} R _inst_1) (NonAssocSemiring.toNonUnitalNonAssocSemiring.{u1} (Polynomial.{u1} R _inst_1) (Semiring.toNonAssocSemiring.{u1} (Polynomial.{u1} R _inst_1) (Polynomial.semiring.{u1} R _inst_1)))) (Semiring.toModule.{u1} R _inst_1) (Polynomial.module.{u1, u1} R _inst_1 R _inst_1 (Semiring.toModule.{u1} R _inst_1))) => R -> (Polynomial.{u1} R _inst_1)) (LinearMap.hasCoeToFun.{u1, u1, u1, u1} R R R (Polynomial.{u1} R _inst_1) _inst_1 _inst_1 (NonUnitalNonAssocSemiring.toAddCommMonoid.{u1} R (NonAssocSemiring.toNonUnitalNonAssocSemiring.{u1} R (Semiring.toNonAssocSemiring.{u1} R _inst_1))) (NonUnitalNonAssocSemiring.toAddCommMonoid.{u1} (Polynomial.{u1} R _inst_1) (NonAssocSemiring.toNonUnitalNonAssocSemiring.{u1} (Polynomial.{u1} R _inst_1) (Semiring.toNonAssocSemiring.{u1} (Polynomial.{u1} R _inst_1) (Polynomial.semiring.{u1} R _inst_1)))) (Semiring.toModule.{u1} R _inst_1) (Polynomial.module.{u1, u1} R _inst_1 R _inst_1 (Semiring.toModule.{u1} R _inst_1)) (RingHom.id.{u1} R (Semiring.toNonAssocSemiring.{u1} R _inst_1))) (Polynomial.monomial.{u1} R _inst_1 n) a))))
 but is expected to have type
-  forall {R : Type.{u1}} [_inst_1 : Semiring.{u1} R] {f : Polynomial.{u1} R _inst_1}, Iff (LE.le.{0} Nat instLENat (Finset.card.{0} Nat (Polynomial.support.{u1} R _inst_1 f)) (OfNat.ofNat.{0} Nat 1 (instOfNatNat 1))) (Exists.{1} Nat (fun (n : Nat) => Exists.{succ u1} R (fun (a : R) => Eq.{succ u1} (Polynomial.{u1} R _inst_1) f (FunLike.coe.{succ u1, succ u1, succ u1} (LinearMap.{u1, u1, u1, u1} R R _inst_1 _inst_1 (RingHom.id.{u1} R (Semiring.toNonAssocSemiring.{u1} R _inst_1)) R (Polynomial.{u1} R _inst_1) (NonUnitalNonAssocSemiring.toAddCommMonoid.{u1} R (NonAssocSemiring.toNonUnitalNonAssocSemiring.{u1} R (Semiring.toNonAssocSemiring.{u1} R _inst_1))) (NonUnitalNonAssocSemiring.toAddCommMonoid.{u1} (Polynomial.{u1} R _inst_1) (NonAssocSemiring.toNonUnitalNonAssocSemiring.{u1} (Polynomial.{u1} R _inst_1) (Semiring.toNonAssocSemiring.{u1} (Polynomial.{u1} R _inst_1) (Polynomial.semiring.{u1} R _inst_1)))) (Semiring.toModule.{u1} R _inst_1) (Polynomial.module.{u1, u1} R _inst_1 R _inst_1 (Semiring.toModule.{u1} R _inst_1))) R (fun (_x : R) => (fun (x._@.Mathlib.Algebra.Module.LinearMap._hyg.6191 : R) => Polynomial.{u1} R _inst_1) _x) (LinearMap.instFunLikeLinearMap.{u1, u1, u1, u1} R R R (Polynomial.{u1} R _inst_1) _inst_1 _inst_1 (NonUnitalNonAssocSemiring.toAddCommMonoid.{u1} R (NonAssocSemiring.toNonUnitalNonAssocSemiring.{u1} R (Semiring.toNonAssocSemiring.{u1} R _inst_1))) (NonUnitalNonAssocSemiring.toAddCommMonoid.{u1} (Polynomial.{u1} R _inst_1) (NonAssocSemiring.toNonUnitalNonAssocSemiring.{u1} (Polynomial.{u1} R _inst_1) (Semiring.toNonAssocSemiring.{u1} (Polynomial.{u1} R _inst_1) (Polynomial.semiring.{u1} R _inst_1)))) (Semiring.toModule.{u1} R _inst_1) (Polynomial.module.{u1, u1} R _inst_1 R _inst_1 (Semiring.toModule.{u1} R _inst_1)) (RingHom.id.{u1} R (Semiring.toNonAssocSemiring.{u1} R _inst_1))) (Polynomial.monomial.{u1} R _inst_1 n) a))))
+  forall {R : Type.{u1}} [_inst_1 : Semiring.{u1} R] {f : Polynomial.{u1} R _inst_1}, Iff (LE.le.{0} Nat instLENat (Finset.card.{0} Nat (Polynomial.support.{u1} R _inst_1 f)) (OfNat.ofNat.{0} Nat 1 (instOfNatNat 1))) (Exists.{1} Nat (fun (n : Nat) => Exists.{succ u1} R (fun (a : R) => Eq.{succ u1} (Polynomial.{u1} R _inst_1) f (FunLike.coe.{succ u1, succ u1, succ u1} (LinearMap.{u1, u1, u1, u1} R R _inst_1 _inst_1 (RingHom.id.{u1} R (Semiring.toNonAssocSemiring.{u1} R _inst_1)) R (Polynomial.{u1} R _inst_1) (NonUnitalNonAssocSemiring.toAddCommMonoid.{u1} R (NonAssocSemiring.toNonUnitalNonAssocSemiring.{u1} R (Semiring.toNonAssocSemiring.{u1} R _inst_1))) (NonUnitalNonAssocSemiring.toAddCommMonoid.{u1} (Polynomial.{u1} R _inst_1) (NonAssocSemiring.toNonUnitalNonAssocSemiring.{u1} (Polynomial.{u1} R _inst_1) (Semiring.toNonAssocSemiring.{u1} (Polynomial.{u1} R _inst_1) (Polynomial.semiring.{u1} R _inst_1)))) (Semiring.toModule.{u1} R _inst_1) (Polynomial.module.{u1, u1} R _inst_1 R _inst_1 (Semiring.toModule.{u1} R _inst_1))) R (fun (_x : R) => (fun (x._@.Mathlib.Algebra.Module.LinearMap._hyg.6193 : R) => Polynomial.{u1} R _inst_1) _x) (LinearMap.instFunLikeLinearMap.{u1, u1, u1, u1} R R R (Polynomial.{u1} R _inst_1) _inst_1 _inst_1 (NonUnitalNonAssocSemiring.toAddCommMonoid.{u1} R (NonAssocSemiring.toNonUnitalNonAssocSemiring.{u1} R (Semiring.toNonAssocSemiring.{u1} R _inst_1))) (NonUnitalNonAssocSemiring.toAddCommMonoid.{u1} (Polynomial.{u1} R _inst_1) (NonAssocSemiring.toNonUnitalNonAssocSemiring.{u1} (Polynomial.{u1} R _inst_1) (Semiring.toNonAssocSemiring.{u1} (Polynomial.{u1} R _inst_1) (Polynomial.semiring.{u1} R _inst_1)))) (Semiring.toModule.{u1} R _inst_1) (Polynomial.module.{u1, u1} R _inst_1 R _inst_1 (Semiring.toModule.{u1} R _inst_1)) (RingHom.id.{u1} R (Semiring.toNonAssocSemiring.{u1} R _inst_1))) (Polynomial.monomial.{u1} R _inst_1 n) a))))
 Case conversion may be inaccurate. Consider using '#align polynomial.card_support_le_one_iff_monomial Polynomial.card_support_le_one_iff_monomialₓ'. -/
 theorem card_support_le_one_iff_monomial {f : R[X]} :
     Finset.card f.support ≤ 1 ↔ ∃ n a, f = monomial n a :=

69c6a5a1

bump to nightly-2023-05-19-16

mathlib commit https://github.com/leanprover-community/mathlib/commit/95a87616d63b3cb49d3fe678d416fbe9c4217bf4

a31df521

Diff

@@ -79,7 +79,7 @@ theorem card_support_le_one_iff_monomial {f : R[X]} :
 lean 3 declaration is
   forall {R : Type.{u1}} [_inst_1 : Semiring.{u1} R] {S : Type.{u2}} [_inst_2 : Semiring.{u2} S] {f : RingHom.{u1, u2} (Polynomial.{u1} R _inst_1) S (Semiring.toNonAssocSemiring.{u1} (Polynomial.{u1} R _inst_1) (Polynomial.semiring.{u1} R _inst_1)) (Semiring.toNonAssocSemiring.{u2} S _inst_2)} {g : RingHom.{u1, u2} (Polynomial.{u1} R _inst_1) S (Semiring.toNonAssocSemiring.{u1} (Polynomial.{u1} R _inst_1) (Polynomial.semiring.{u1} R _inst_1)) (Semiring.toNonAssocSemiring.{u2} S _inst_2)}, (forall (a : R), Eq.{succ u2} S (coeFn.{max (succ u1) (succ u2), max (succ u1) (succ u2)} (RingHom.{u1, u2} (Polynomial.{u1} R _inst_1) S (Semiring.toNonAssocSemiring.{u1} (Polynomial.{u1} R _inst_1) (Polynomial.semiring.{u1} R _inst_1)) (Semiring.toNonAssocSemiring.{u2} S _inst_2)) (fun (_x : RingHom.{u1, u2} (Polynomial.{u1} R _inst_1) S (Semiring.toNonAssocSemiring.{u1} (Polynomial.{u1} R _inst_1) (Polynomial.semiring.{u1} R _inst_1)) (Semiring.toNonAssocSemiring.{u2} S _inst_2)) => (Polynomial.{u1} R _inst_1) -> S) (RingHom.hasCoeToFun.{u1, u2} (Polynomial.{u1} R _inst_1) S (Semiring.toNonAssocSemiring.{u1} (Polynomial.{u1} R _inst_1) (Polynomial.semiring.{u1} R _inst_1)) (Semiring.toNonAssocSemiring.{u2} S _inst_2)) f (coeFn.{succ u1, succ u1} (RingHom.{u1, u1} R (Polynomial.{u1} R _inst_1) (Semiring.toNonAssocSemiring.{u1} R _inst_1) (Semiring.toNonAssocSemiring.{u1} (Polynomial.{u1} R _inst_1) (Polynomial.semiring.{u1} R _inst_1))) (fun (_x : RingHom.{u1, u1} R (Polynomial.{u1} R _inst_1) (Semiring.toNonAssocSemiring.{u1} R _inst_1) (Semiring.toNonAssocSemiring.{u1} (Polynomial.{u1} R _inst_1) (Polynomial.semiring.{u1} R _inst_1))) => R -> (Polynomial.{u1} R _inst_1)) (RingHom.hasCoeToFun.{u1, u1} R (Polynomial.{u1} R _inst_1) (Semiring.toNonAssocSemiring.{u1} R _inst_1) (Semiring.toNonAssocSemiring.{u1} (Polynomial.{u1} R _inst_1) (Polynomial.semiring.{u1} R _inst_1))) (Polynomial.C.{u1} R _inst_1) a)) (coeFn.{max (succ u1) (succ u2), max (succ u1) (succ u2)} 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_inst_1)) (Semiring.toNonAssocSemiring.{u1} S _inst_2)) (Polynomial.{u2} R _inst_1) S (NonUnitalNonAssocSemiring.toMul.{u2} (Polynomial.{u2} R _inst_1) (NonAssocSemiring.toNonUnitalNonAssocSemiring.{u2} (Polynomial.{u2} R _inst_1) (Semiring.toNonAssocSemiring.{u2} (Polynomial.{u2} R _inst_1) (Polynomial.semiring.{u2} R _inst_1)))) (NonUnitalNonAssocSemiring.toMul.{u1} S (NonAssocSemiring.toNonUnitalNonAssocSemiring.{u1} S (Semiring.toNonAssocSemiring.{u1} S _inst_2))) (NonUnitalRingHomClass.toMulHomClass.{max u2 u1, u2, u1} (RingHom.{u2, u1} (Polynomial.{u2} R _inst_1) S (Semiring.toNonAssocSemiring.{u2} (Polynomial.{u2} R _inst_1) (Polynomial.semiring.{u2} R _inst_1)) (Semiring.toNonAssocSemiring.{u1} S _inst_2)) (Polynomial.{u2} R _inst_1) S (NonAssocSemiring.toNonUnitalNonAssocSemiring.{u2} (Polynomial.{u2} R _inst_1) (Semiring.toNonAssocSemiring.{u2} (Polynomial.{u2} R _inst_1) (Polynomial.semiring.{u2} R _inst_1))) (NonAssocSemiring.toNonUnitalNonAssocSemiring.{u1} S (Semiring.toNonAssocSemiring.{u1} S _inst_2)) (RingHomClass.toNonUnitalRingHomClass.{max u2 u1, u2, u1} (RingHom.{u2, u1} (Polynomial.{u2} R _inst_1) S (Semiring.toNonAssocSemiring.{u2} (Polynomial.{u2} R _inst_1) (Polynomial.semiring.{u2} R _inst_1)) (Semiring.toNonAssocSemiring.{u1} S _inst_2)) (Polynomial.{u2} R _inst_1) S (Semiring.toNonAssocSemiring.{u2} (Polynomial.{u2} R _inst_1) (Polynomial.semiring.{u2} R _inst_1)) (Semiring.toNonAssocSemiring.{u1} S _inst_2) (RingHom.instRingHomClassRingHom.{u2, u1} (Polynomial.{u2} R _inst_1) S (Semiring.toNonAssocSemiring.{u2} (Polynomial.{u2} R _inst_1) (Polynomial.semiring.{u2} R _inst_1)) (Semiring.toNonAssocSemiring.{u1} S _inst_2))))) g (FunLike.coe.{succ u2, succ u2, succ u2} (RingHom.{u2, u2} R (Polynomial.{u2} R _inst_1) (Semiring.toNonAssocSemiring.{u2} R _inst_1) (Semiring.toNonAssocSemiring.{u2} (Polynomial.{u2} R _inst_1) (Polynomial.semiring.{u2} R _inst_1))) R (fun (_x : R) => (fun (x._@.Mathlib.Algebra.Hom.Group._hyg.2397 : R) => Polynomial.{u2} R _inst_1) _x) (MulHomClass.toFunLike.{u2, u2, u2} (RingHom.{u2, u2} R (Polynomial.{u2} R _inst_1) (Semiring.toNonAssocSemiring.{u2} R _inst_1) (Semiring.toNonAssocSemiring.{u2} (Polynomial.{u2} R _inst_1) (Polynomial.semiring.{u2} R _inst_1))) R (Polynomial.{u2} R _inst_1) (NonUnitalNonAssocSemiring.toMul.{u2} R (NonAssocSemiring.toNonUnitalNonAssocSemiring.{u2} R (Semiring.toNonAssocSemiring.{u2} R _inst_1))) (NonUnitalNonAssocSemiring.toMul.{u2} (Polynomial.{u2} R _inst_1) (NonAssocSemiring.toNonUnitalNonAssocSemiring.{u2} (Polynomial.{u2} R _inst_1) (Semiring.toNonAssocSemiring.{u2} (Polynomial.{u2} R _inst_1) (Polynomial.semiring.{u2} R _inst_1)))) (NonUnitalRingHomClass.toMulHomClass.{u2, u2, u2} (RingHom.{u2, u2} R (Polynomial.{u2} R _inst_1) (Semiring.toNonAssocSemiring.{u2} R _inst_1) (Semiring.toNonAssocSemiring.{u2} (Polynomial.{u2} R _inst_1) (Polynomial.semiring.{u2} R _inst_1))) R (Polynomial.{u2} R _inst_1) (NonAssocSemiring.toNonUnitalNonAssocSemiring.{u2} R (Semiring.toNonAssocSemiring.{u2} R _inst_1)) (NonAssocSemiring.toNonUnitalNonAssocSemiring.{u2} (Polynomial.{u2} R _inst_1) (Semiring.toNonAssocSemiring.{u2} (Polynomial.{u2} R _inst_1) (Polynomial.semiring.{u2} R _inst_1))) (RingHomClass.toNonUnitalRingHomClass.{u2, u2, u2} (RingHom.{u2, u2} R (Polynomial.{u2} R _inst_1) (Semiring.toNonAssocSemiring.{u2} R _inst_1) (Semiring.toNonAssocSemiring.{u2} (Polynomial.{u2} R _inst_1) (Polynomial.semiring.{u2} R _inst_1))) R (Polynomial.{u2} R _inst_1) (Semiring.toNonAssocSemiring.{u2} R _inst_1) (Semiring.toNonAssocSemiring.{u2} (Polynomial.{u2} R _inst_1) (Polynomial.semiring.{u2} R _inst_1)) (RingHom.instRingHomClassRingHom.{u2, u2} R (Polynomial.{u2} R _inst_1) (Semiring.toNonAssocSemiring.{u2} R _inst_1) (Semiring.toNonAssocSemiring.{u2} (Polynomial.{u2} R _inst_1) (Polynomial.semiring.{u2} R _inst_1)))))) (Polynomial.C.{u2} R _inst_1) a))) -> (Eq.{succ u1} ((fun (x._@.Mathlib.Algebra.Hom.Group._hyg.2397 : Polynomial.{u2} R _inst_1) => S) (Polynomial.X.{u2} R _inst_1)) (FunLike.coe.{max (succ u2) (succ u1), succ u2, succ u1} (RingHom.{u2, u1} (Polynomial.{u2} R _inst_1) S (Semiring.toNonAssocSemiring.{u2} (Polynomial.{u2} R _inst_1) (Polynomial.semiring.{u2} R _inst_1)) (Semiring.toNonAssocSemiring.{u1} S _inst_2)) (Polynomial.{u2} R _inst_1) (fun (_x : Polynomial.{u2} R _inst_1) => (fun (x._@.Mathlib.Algebra.Hom.Group._hyg.2397 : Polynomial.{u2} R _inst_1) => S) _x) (MulHomClass.toFunLike.{max u2 u1, u2, u1} (RingHom.{u2, u1} (Polynomial.{u2} R _inst_1) S (Semiring.toNonAssocSemiring.{u2} (Polynomial.{u2} R _inst_1) (Polynomial.semiring.{u2} R _inst_1)) (Semiring.toNonAssocSemiring.{u1} S _inst_2)) (Polynomial.{u2} R _inst_1) S (NonUnitalNonAssocSemiring.toMul.{u2} (Polynomial.{u2} R _inst_1) (NonAssocSemiring.toNonUnitalNonAssocSemiring.{u2} (Polynomial.{u2} R _inst_1) (Semiring.toNonAssocSemiring.{u2} (Polynomial.{u2} R _inst_1) (Polynomial.semiring.{u2} R _inst_1)))) (NonUnitalNonAssocSemiring.toMul.{u1} S (NonAssocSemiring.toNonUnitalNonAssocSemiring.{u1} S (Semiring.toNonAssocSemiring.{u1} S _inst_2))) (NonUnitalRingHomClass.toMulHomClass.{max u2 u1, u2, u1} (RingHom.{u2, u1} (Polynomial.{u2} R _inst_1) S (Semiring.toNonAssocSemiring.{u2} (Polynomial.{u2} R _inst_1) (Polynomial.semiring.{u2} R _inst_1)) (Semiring.toNonAssocSemiring.{u1} S _inst_2)) (Polynomial.{u2} R _inst_1) S (NonAssocSemiring.toNonUnitalNonAssocSemiring.{u2} (Polynomial.{u2} R _inst_1) (Semiring.toNonAssocSemiring.{u2} (Polynomial.{u2} R _inst_1) (Polynomial.semiring.{u2} R _inst_1))) (NonAssocSemiring.toNonUnitalNonAssocSemiring.{u1} S (Semiring.toNonAssocSemiring.{u1} S _inst_2)) (RingHomClass.toNonUnitalRingHomClass.{max u2 u1, u2, u1} (RingHom.{u2, u1} (Polynomial.{u2} R _inst_1) S (Semiring.toNonAssocSemiring.{u2} (Polynomial.{u2} R _inst_1) (Polynomial.semiring.{u2} R _inst_1)) (Semiring.toNonAssocSemiring.{u1} S _inst_2)) (Polynomial.{u2} R _inst_1) S (Semiring.toNonAssocSemiring.{u2} (Polynomial.{u2} R _inst_1) (Polynomial.semiring.{u2} R _inst_1)) (Semiring.toNonAssocSemiring.{u1} S _inst_2) (RingHom.instRingHomClassRingHom.{u2, u1} (Polynomial.{u2} R _inst_1) S (Semiring.toNonAssocSemiring.{u2} (Polynomial.{u2} R _inst_1) (Polynomial.semiring.{u2} R _inst_1)) (Semiring.toNonAssocSemiring.{u1} S _inst_2))))) f (Polynomial.X.{u2} R _inst_1)) (FunLike.coe.{max (succ u2) (succ u1), succ u2, succ u1} (RingHom.{u2, u1} (Polynomial.{u2} R _inst_1) S (Semiring.toNonAssocSemiring.{u2} (Polynomial.{u2} R _inst_1) (Polynomial.semiring.{u2} R _inst_1)) (Semiring.toNonAssocSemiring.{u1} S _inst_2)) (Polynomial.{u2} R _inst_1) (fun (_x : Polynomial.{u2} R _inst_1) => (fun (x._@.Mathlib.Algebra.Hom.Group._hyg.2397 : Polynomial.{u2} R _inst_1) => S) _x) (MulHomClass.toFunLike.{max u2 u1, u2, u1} (RingHom.{u2, u1} (Polynomial.{u2} R _inst_1) S (Semiring.toNonAssocSemiring.{u2} (Polynomial.{u2} R _inst_1) (Polynomial.semiring.{u2} R _inst_1)) (Semiring.toNonAssocSemiring.{u1} S _inst_2)) (Polynomial.{u2} R _inst_1) S (NonUnitalNonAssocSemiring.toMul.{u2} (Polynomial.{u2} R _inst_1) (NonAssocSemiring.toNonUnitalNonAssocSemiring.{u2} (Polynomial.{u2} R _inst_1) (Semiring.toNonAssocSemiring.{u2} (Polynomial.{u2} R _inst_1) (Polynomial.semiring.{u2} R _inst_1)))) (NonUnitalNonAssocSemiring.toMul.{u1} S (NonAssocSemiring.toNonUnitalNonAssocSemiring.{u1} S (Semiring.toNonAssocSemiring.{u1} S _inst_2))) (NonUnitalRingHomClass.toMulHomClass.{max u2 u1, u2, u1} (RingHom.{u2, u1} (Polynomial.{u2} R _inst_1) S (Semiring.toNonAssocSemiring.{u2} (Polynomial.{u2} R _inst_1) (Polynomial.semiring.{u2} R _inst_1)) (Semiring.toNonAssocSemiring.{u1} S _inst_2)) (Polynomial.{u2} R _inst_1) S (NonAssocSemiring.toNonUnitalNonAssocSemiring.{u2} (Polynomial.{u2} R _inst_1) (Semiring.toNonAssocSemiring.{u2} (Polynomial.{u2} R _inst_1) (Polynomial.semiring.{u2} R _inst_1))) (NonAssocSemiring.toNonUnitalNonAssocSemiring.{u1} S (Semiring.toNonAssocSemiring.{u1} S _inst_2)) (RingHomClass.toNonUnitalRingHomClass.{max u2 u1, u2, u1} (RingHom.{u2, u1} (Polynomial.{u2} R _inst_1) S (Semiring.toNonAssocSemiring.{u2} (Polynomial.{u2} R _inst_1) (Polynomial.semiring.{u2} R _inst_1)) (Semiring.toNonAssocSemiring.{u1} S _inst_2)) (Polynomial.{u2} R _inst_1) S (Semiring.toNonAssocSemiring.{u2} (Polynomial.{u2} R _inst_1) (Polynomial.semiring.{u2} R _inst_1)) (Semiring.toNonAssocSemiring.{u1} S _inst_2) (RingHom.instRingHomClassRingHom.{u2, u1} (Polynomial.{u2} R _inst_1) S (Semiring.toNonAssocSemiring.{u2} (Polynomial.{u2} R _inst_1) (Polynomial.semiring.{u2} R _inst_1)) (Semiring.toNonAssocSemiring.{u1} S _inst_2))))) g (Polynomial.X.{u2} R _inst_1))) -> (Eq.{max (succ u2) (succ u1)} (RingHom.{u2, u1} (Polynomial.{u2} R _inst_1) S (Semiring.toNonAssocSemiring.{u2} (Polynomial.{u2} R _inst_1) (Polynomial.semiring.{u2} R _inst_1)) (Semiring.toNonAssocSemiring.{u1} S _inst_2)) f g)
 Case conversion may be inaccurate. Consider using '#align polynomial.ring_hom_ext Polynomial.ringHom_extₓ'. -/
 theorem ringHom_ext {S} [Semiring S] {f g : R[X] →+* S} (h₁ : ∀ a, f (C a) = g (C a))
     (h₂ : f X = g X) : f = g :=
@@ -109,7 +109,7 @@ theorem ringHom_ext {S} [Semiring S] {f g : R[X] →+* S} (h₁ : ∀ a, f (C a)
 lean 3 declaration is
   forall {R : Type.{u1}} [_inst_1 : Semiring.{u1} R] {S : Type.{u2}} [_inst_2 : Semiring.{u2} S] {f : RingHom.{u1, u2} (Polynomial.{u1} R _inst_1) S (Semiring.toNonAssocSemiring.{u1} (Polynomial.{u1} R _inst_1) (Polynomial.semiring.{u1} R _inst_1)) (Semiring.toNonAssocSemiring.{u2} S _inst_2)} {g : RingHom.{u1, u2} (Polynomial.{u1} R _inst_1) S (Semiring.toNonAssocSemiring.{u1} (Polynomial.{u1} R _inst_1) (Polynomial.semiring.{u1} R _inst_1)) (Semiring.toNonAssocSemiring.{u2} S _inst_2)}, (Eq.{max (succ u1) (succ u2)} (RingHom.{u1, u2} R S (Semiring.toNonAssocSemiring.{u1} R _inst_1) (Semiring.toNonAssocSemiring.{u2} S _inst_2)) (RingHom.comp.{u1, u1, u2} R (Polynomial.{u1} R _inst_1) S (Semiring.toNonAssocSemiring.{u1} R _inst_1) (Semiring.toNonAssocSemiring.{u1} (Polynomial.{u1} R _inst_1) (Polynomial.semiring.{u1} R _inst_1)) (Semiring.toNonAssocSemiring.{u2} S _inst_2) f (Polynomial.C.{u1} R _inst_1)) (RingHom.comp.{u1, u1, u2} R (Polynomial.{u1} R _inst_1) S (Semiring.toNonAssocSemiring.{u1} R _inst_1) (Semiring.toNonAssocSemiring.{u1} (Polynomial.{u1} R _inst_1) (Polynomial.semiring.{u1} R _inst_1)) (Semiring.toNonAssocSemiring.{u2} S _inst_2) g (Polynomial.C.{u1} R _inst_1))) -> (Eq.{succ u2} S (coeFn.{max (succ u1) (succ u2), max (succ u1) (succ u2)} (RingHom.{u1, u2} (Polynomial.{u1} R _inst_1) S (Semiring.toNonAssocSemiring.{u1} (Polynomial.{u1} R _inst_1) (Polynomial.semiring.{u1} R _inst_1)) (Semiring.toNonAssocSemiring.{u2} S _inst_2)) (fun (_x : RingHom.{u1, u2} (Polynomial.{u1} R _inst_1) S (Semiring.toNonAssocSemiring.{u1} (Polynomial.{u1} R _inst_1) (Polynomial.semiring.{u1} R _inst_1)) (Semiring.toNonAssocSemiring.{u2} S _inst_2)) => (Polynomial.{u1} R _inst_1) -> S) (RingHom.hasCoeToFun.{u1, u2} (Polynomial.{u1} R _inst_1) S (Semiring.toNonAssocSemiring.{u1} (Polynomial.{u1} R _inst_1) (Polynomial.semiring.{u1} R _inst_1)) (Semiring.toNonAssocSemiring.{u2} S _inst_2)) f (Polynomial.X.{u1} R _inst_1)) (coeFn.{max (succ u1) (succ u2), max (succ u1) (succ u2)} (RingHom.{u1, u2} (Polynomial.{u1} R _inst_1) S (Semiring.toNonAssocSemiring.{u1} (Polynomial.{u1} R _inst_1) (Polynomial.semiring.{u1} R _inst_1)) (Semiring.toNonAssocSemiring.{u2} S _inst_2)) (fun (_x : RingHom.{u1, u2} (Polynomial.{u1} R _inst_1) S (Semiring.toNonAssocSemiring.{u1} (Polynomial.{u1} R _inst_1) (Polynomial.semiring.{u1} R _inst_1)) (Semiring.toNonAssocSemiring.{u2} S _inst_2)) => (Polynomial.{u1} R _inst_1) -> S) (RingHom.hasCoeToFun.{u1, u2} (Polynomial.{u1} R _inst_1) S (Semiring.toNonAssocSemiring.{u1} (Polynomial.{u1} R _inst_1) (Polynomial.semiring.{u1} R _inst_1)) (Semiring.toNonAssocSemiring.{u2} S _inst_2)) g (Polynomial.X.{u1} R _inst_1))) -> (Eq.{max (succ u1) (succ u2)} (RingHom.{u1, u2} (Polynomial.{u1} R _inst_1) S (Semiring.toNonAssocSemiring.{u1} (Polynomial.{u1} R _inst_1) (Polynomial.semiring.{u1} R _inst_1)) (Semiring.toNonAssocSemiring.{u2} S _inst_2)) f g)
 but is expected to have type
-  forall {R : Type.{u2}} [_inst_1 : Semiring.{u2} R] {S : Type.{u1}} [_inst_2 : Semiring.{u1} S] {f : RingHom.{u2, u1} (Polynomial.{u2} R _inst_1) S (Semiring.toNonAssocSemiring.{u2} (Polynomial.{u2} R _inst_1) (Polynomial.semiring.{u2} R _inst_1)) (Semiring.toNonAssocSemiring.{u1} S _inst_2)} {g : RingHom.{u2, u1} (Polynomial.{u2} R _inst_1) S (Semiring.toNonAssocSemiring.{u2} (Polynomial.{u2} R _inst_1) (Polynomial.semiring.{u2} R _inst_1)) (Semiring.toNonAssocSemiring.{u1} S _inst_2)}, (Eq.{max (succ u2) (succ u1)} (RingHom.{u2, u1} R S (Semiring.toNonAssocSemiring.{u2} R _inst_1) (Semiring.toNonAssocSemiring.{u1} S _inst_2)) (RingHom.comp.{u2, u2, u1} R (Polynomial.{u2} R _inst_1) S (Semiring.toNonAssocSemiring.{u2} R _inst_1) (Semiring.toNonAssocSemiring.{u2} (Polynomial.{u2} R _inst_1) (Polynomial.semiring.{u2} R _inst_1)) (Semiring.toNonAssocSemiring.{u1} S _inst_2) f (Polynomial.C.{u2} R _inst_1)) (RingHom.comp.{u2, u2, u1} R (Polynomial.{u2} R _inst_1) S (Semiring.toNonAssocSemiring.{u2} R _inst_1) (Semiring.toNonAssocSemiring.{u2} (Polynomial.{u2} R _inst_1) (Polynomial.semiring.{u2} R _inst_1)) (Semiring.toNonAssocSemiring.{u1} S _inst_2) g (Polynomial.C.{u2} R _inst_1))) -> (Eq.{succ u1} ((fun (x._@.Mathlib.Algebra.Hom.Group._hyg.2391 : Polynomial.{u2} R _inst_1) => S) (Polynomial.X.{u2} R _inst_1)) (FunLike.coe.{max (succ u2) (succ u1), succ u2, succ u1} (RingHom.{u2, u1} (Polynomial.{u2} R _inst_1) S (Semiring.toNonAssocSemiring.{u2} (Polynomial.{u2} R _inst_1) (Polynomial.semiring.{u2} R _inst_1)) (Semiring.toNonAssocSemiring.{u1} S _inst_2)) (Polynomial.{u2} R _inst_1) (fun (_x : Polynomial.{u2} R _inst_1) => (fun (x._@.Mathlib.Algebra.Hom.Group._hyg.2391 : Polynomial.{u2} R _inst_1) => S) _x) (MulHomClass.toFunLike.{max u2 u1, u2, u1} (RingHom.{u2, u1} (Polynomial.{u2} R _inst_1) S (Semiring.toNonAssocSemiring.{u2} (Polynomial.{u2} R _inst_1) (Polynomial.semiring.{u2} R _inst_1)) (Semiring.toNonAssocSemiring.{u1} S _inst_2)) (Polynomial.{u2} R _inst_1) S (NonUnitalNonAssocSemiring.toMul.{u2} (Polynomial.{u2} R _inst_1) (NonAssocSemiring.toNonUnitalNonAssocSemiring.{u2} (Polynomial.{u2} R _inst_1) (Semiring.toNonAssocSemiring.{u2} (Polynomial.{u2} R _inst_1) (Polynomial.semiring.{u2} R _inst_1)))) (NonUnitalNonAssocSemiring.toMul.{u1} S (NonAssocSemiring.toNonUnitalNonAssocSemiring.{u1} S (Semiring.toNonAssocSemiring.{u1} S _inst_2))) (NonUnitalRingHomClass.toMulHomClass.{max u2 u1, u2, u1} (RingHom.{u2, u1} (Polynomial.{u2} R _inst_1) S (Semiring.toNonAssocSemiring.{u2} (Polynomial.{u2} R _inst_1) (Polynomial.semiring.{u2} R _inst_1)) (Semiring.toNonAssocSemiring.{u1} S _inst_2)) (Polynomial.{u2} R _inst_1) S (NonAssocSemiring.toNonUnitalNonAssocSemiring.{u2} (Polynomial.{u2} R _inst_1) (Semiring.toNonAssocSemiring.{u2} (Polynomial.{u2} R _inst_1) (Polynomial.semiring.{u2} R _inst_1))) (NonAssocSemiring.toNonUnitalNonAssocSemiring.{u1} S (Semiring.toNonAssocSemiring.{u1} S _inst_2)) (RingHomClass.toNonUnitalRingHomClass.{max u2 u1, u2, u1} (RingHom.{u2, u1} (Polynomial.{u2} R _inst_1) S (Semiring.toNonAssocSemiring.{u2} (Polynomial.{u2} R _inst_1) (Polynomial.semiring.{u2} R _inst_1)) (Semiring.toNonAssocSemiring.{u1} S _inst_2)) (Polynomial.{u2} R _inst_1) S (Semiring.toNonAssocSemiring.{u2} (Polynomial.{u2} R _inst_1) (Polynomial.semiring.{u2} R _inst_1)) (Semiring.toNonAssocSemiring.{u1} S _inst_2) (RingHom.instRingHomClassRingHom.{u2, u1} (Polynomial.{u2} R _inst_1) S (Semiring.toNonAssocSemiring.{u2} (Polynomial.{u2} R _inst_1) (Polynomial.semiring.{u2} R _inst_1)) (Semiring.toNonAssocSemiring.{u1} S _inst_2))))) f (Polynomial.X.{u2} R _inst_1)) (FunLike.coe.{max (succ u2) (succ u1), succ u2, succ u1} (RingHom.{u2, u1} (Polynomial.{u2} R _inst_1) S (Semiring.toNonAssocSemiring.{u2} (Polynomial.{u2} R _inst_1) (Polynomial.semiring.{u2} R _inst_1)) (Semiring.toNonAssocSemiring.{u1} S _inst_2)) (Polynomial.{u2} R _inst_1) (fun (_x : Polynomial.{u2} R _inst_1) => (fun (x._@.Mathlib.Algebra.Hom.Group._hyg.2391 : Polynomial.{u2} R _inst_1) => S) _x) (MulHomClass.toFunLike.{max u2 u1, u2, u1} (RingHom.{u2, u1} (Polynomial.{u2} R _inst_1) S (Semiring.toNonAssocSemiring.{u2} (Polynomial.{u2} R _inst_1) (Polynomial.semiring.{u2} R _inst_1)) (Semiring.toNonAssocSemiring.{u1} S _inst_2)) (Polynomial.{u2} R _inst_1) S (NonUnitalNonAssocSemiring.toMul.{u2} (Polynomial.{u2} R _inst_1) (NonAssocSemiring.toNonUnitalNonAssocSemiring.{u2} (Polynomial.{u2} R _inst_1) (Semiring.toNonAssocSemiring.{u2} (Polynomial.{u2} R _inst_1) (Polynomial.semiring.{u2} R _inst_1)))) (NonUnitalNonAssocSemiring.toMul.{u1} S (NonAssocSemiring.toNonUnitalNonAssocSemiring.{u1} S (Semiring.toNonAssocSemiring.{u1} S _inst_2))) (NonUnitalRingHomClass.toMulHomClass.{max u2 u1, u2, u1} (RingHom.{u2, u1} (Polynomial.{u2} R _inst_1) S (Semiring.toNonAssocSemiring.{u2} (Polynomial.{u2} R _inst_1) (Polynomial.semiring.{u2} R _inst_1)) (Semiring.toNonAssocSemiring.{u1} S _inst_2)) (Polynomial.{u2} R _inst_1) S (NonAssocSemiring.toNonUnitalNonAssocSemiring.{u2} (Polynomial.{u2} R _inst_1) (Semiring.toNonAssocSemiring.{u2} (Polynomial.{u2} R _inst_1) (Polynomial.semiring.{u2} R _inst_1))) (NonAssocSemiring.toNonUnitalNonAssocSemiring.{u1} S (Semiring.toNonAssocSemiring.{u1} S _inst_2)) (RingHomClass.toNonUnitalRingHomClass.{max u2 u1, u2, u1} (RingHom.{u2, u1} (Polynomial.{u2} R _inst_1) S (Semiring.toNonAssocSemiring.{u2} (Polynomial.{u2} R _inst_1) (Polynomial.semiring.{u2} R _inst_1)) (Semiring.toNonAssocSemiring.{u1} S _inst_2)) (Polynomial.{u2} R _inst_1) S (Semiring.toNonAssocSemiring.{u2} (Polynomial.{u2} R _inst_1) (Polynomial.semiring.{u2} R _inst_1)) (Semiring.toNonAssocSemiring.{u1} S _inst_2) (RingHom.instRingHomClassRingHom.{u2, u1} (Polynomial.{u2} R _inst_1) S (Semiring.toNonAssocSemiring.{u2} (Polynomial.{u2} R _inst_1) (Polynomial.semiring.{u2} R _inst_1)) (Semiring.toNonAssocSemiring.{u1} S _inst_2))))) g (Polynomial.X.{u2} R _inst_1))) -> (Eq.{max (succ u2) (succ u1)} (RingHom.{u2, u1} (Polynomial.{u2} R _inst_1) S (Semiring.toNonAssocSemiring.{u2} (Polynomial.{u2} R _inst_1) (Polynomial.semiring.{u2} R _inst_1)) (Semiring.toNonAssocSemiring.{u1} S _inst_2)) f g)
+  forall {R : Type.{u2}} [_inst_1 : Semiring.{u2} R] {S : Type.{u1}} [_inst_2 : Semiring.{u1} S] {f : RingHom.{u2, u1} (Polynomial.{u2} R _inst_1) S (Semiring.toNonAssocSemiring.{u2} (Polynomial.{u2} R _inst_1) (Polynomial.semiring.{u2} R _inst_1)) (Semiring.toNonAssocSemiring.{u1} S _inst_2)} {g : RingHom.{u2, u1} (Polynomial.{u2} R _inst_1) S (Semiring.toNonAssocSemiring.{u2} (Polynomial.{u2} R _inst_1) (Polynomial.semiring.{u2} R _inst_1)) (Semiring.toNonAssocSemiring.{u1} S _inst_2)}, (Eq.{max (succ u2) (succ u1)} (RingHom.{u2, u1} R S (Semiring.toNonAssocSemiring.{u2} R _inst_1) (Semiring.toNonAssocSemiring.{u1} S _inst_2)) (RingHom.comp.{u2, u2, u1} R (Polynomial.{u2} R _inst_1) S (Semiring.toNonAssocSemiring.{u2} R _inst_1) (Semiring.toNonAssocSemiring.{u2} (Polynomial.{u2} R _inst_1) (Polynomial.semiring.{u2} R _inst_1)) (Semiring.toNonAssocSemiring.{u1} S _inst_2) f (Polynomial.C.{u2} R _inst_1)) (RingHom.comp.{u2, u2, u1} R (Polynomial.{u2} R _inst_1) S (Semiring.toNonAssocSemiring.{u2} R _inst_1) (Semiring.toNonAssocSemiring.{u2} (Polynomial.{u2} R _inst_1) (Polynomial.semiring.{u2} R _inst_1)) (Semiring.toNonAssocSemiring.{u1} S _inst_2) g (Polynomial.C.{u2} R _inst_1))) -> (Eq.{succ u1} ((fun (x._@.Mathlib.Algebra.Hom.Group._hyg.2397 : Polynomial.{u2} R _inst_1) => S) (Polynomial.X.{u2} R _inst_1)) (FunLike.coe.{max (succ u2) (succ u1), succ u2, succ u1} (RingHom.{u2, u1} (Polynomial.{u2} R _inst_1) S (Semiring.toNonAssocSemiring.{u2} (Polynomial.{u2} R _inst_1) (Polynomial.semiring.{u2} R _inst_1)) (Semiring.toNonAssocSemiring.{u1} S _inst_2)) (Polynomial.{u2} R _inst_1) (fun (_x : Polynomial.{u2} R _inst_1) => (fun (x._@.Mathlib.Algebra.Hom.Group._hyg.2397 : Polynomial.{u2} R _inst_1) => S) _x) (MulHomClass.toFunLike.{max u2 u1, u2, u1} (RingHom.{u2, u1} (Polynomial.{u2} R _inst_1) S (Semiring.toNonAssocSemiring.{u2} (Polynomial.{u2} R _inst_1) (Polynomial.semiring.{u2} R _inst_1)) (Semiring.toNonAssocSemiring.{u1} S _inst_2)) (Polynomial.{u2} R _inst_1) S (NonUnitalNonAssocSemiring.toMul.{u2} (Polynomial.{u2} R _inst_1) (NonAssocSemiring.toNonUnitalNonAssocSemiring.{u2} (Polynomial.{u2} R _inst_1) (Semiring.toNonAssocSemiring.{u2} (Polynomial.{u2} R _inst_1) (Polynomial.semiring.{u2} R _inst_1)))) (NonUnitalNonAssocSemiring.toMul.{u1} S (NonAssocSemiring.toNonUnitalNonAssocSemiring.{u1} S (Semiring.toNonAssocSemiring.{u1} S _inst_2))) (NonUnitalRingHomClass.toMulHomClass.{max u2 u1, u2, u1} (RingHom.{u2, u1} (Polynomial.{u2} R _inst_1) S (Semiring.toNonAssocSemiring.{u2} (Polynomial.{u2} R _inst_1) (Polynomial.semiring.{u2} R _inst_1)) (Semiring.toNonAssocSemiring.{u1} S _inst_2)) (Polynomial.{u2} R _inst_1) S (NonAssocSemiring.toNonUnitalNonAssocSemiring.{u2} (Polynomial.{u2} R _inst_1) (Semiring.toNonAssocSemiring.{u2} (Polynomial.{u2} R _inst_1) (Polynomial.semiring.{u2} R _inst_1))) (NonAssocSemiring.toNonUnitalNonAssocSemiring.{u1} S (Semiring.toNonAssocSemiring.{u1} S _inst_2)) (RingHomClass.toNonUnitalRingHomClass.{max u2 u1, u2, u1} (RingHom.{u2, u1} (Polynomial.{u2} R _inst_1) S (Semiring.toNonAssocSemiring.{u2} (Polynomial.{u2} R _inst_1) (Polynomial.semiring.{u2} R _inst_1)) (Semiring.toNonAssocSemiring.{u1} S _inst_2)) (Polynomial.{u2} R _inst_1) S (Semiring.toNonAssocSemiring.{u2} (Polynomial.{u2} R _inst_1) (Polynomial.semiring.{u2} R _inst_1)) (Semiring.toNonAssocSemiring.{u1} S _inst_2) (RingHom.instRingHomClassRingHom.{u2, u1} (Polynomial.{u2} R _inst_1) S (Semiring.toNonAssocSemiring.{u2} (Polynomial.{u2} R _inst_1) (Polynomial.semiring.{u2} R _inst_1)) (Semiring.toNonAssocSemiring.{u1} S _inst_2))))) f (Polynomial.X.{u2} R _inst_1)) (FunLike.coe.{max (succ u2) (succ u1), succ u2, succ u1} (RingHom.{u2, u1} (Polynomial.{u2} R _inst_1) S (Semiring.toNonAssocSemiring.{u2} (Polynomial.{u2} R _inst_1) (Polynomial.semiring.{u2} R _inst_1)) (Semiring.toNonAssocSemiring.{u1} S _inst_2)) (Polynomial.{u2} R _inst_1) (fun (_x : Polynomial.{u2} R _inst_1) => (fun (x._@.Mathlib.Algebra.Hom.Group._hyg.2397 : Polynomial.{u2} R _inst_1) => S) _x) (MulHomClass.toFunLike.{max u2 u1, u2, u1} (RingHom.{u2, u1} (Polynomial.{u2} R _inst_1) S (Semiring.toNonAssocSemiring.{u2} (Polynomial.{u2} R _inst_1) (Polynomial.semiring.{u2} R _inst_1)) (Semiring.toNonAssocSemiring.{u1} S _inst_2)) (Polynomial.{u2} R _inst_1) S (NonUnitalNonAssocSemiring.toMul.{u2} (Polynomial.{u2} R _inst_1) (NonAssocSemiring.toNonUnitalNonAssocSemiring.{u2} (Polynomial.{u2} R _inst_1) (Semiring.toNonAssocSemiring.{u2} (Polynomial.{u2} R _inst_1) (Polynomial.semiring.{u2} R _inst_1)))) (NonUnitalNonAssocSemiring.toMul.{u1} S (NonAssocSemiring.toNonUnitalNonAssocSemiring.{u1} S (Semiring.toNonAssocSemiring.{u1} S _inst_2))) (NonUnitalRingHomClass.toMulHomClass.{max u2 u1, u2, u1} (RingHom.{u2, u1} (Polynomial.{u2} R _inst_1) S (Semiring.toNonAssocSemiring.{u2} (Polynomial.{u2} R _inst_1) (Polynomial.semiring.{u2} R _inst_1)) (Semiring.toNonAssocSemiring.{u1} S _inst_2)) (Polynomial.{u2} R _inst_1) S (NonAssocSemiring.toNonUnitalNonAssocSemiring.{u2} (Polynomial.{u2} R _inst_1) (Semiring.toNonAssocSemiring.{u2} (Polynomial.{u2} R _inst_1) (Polynomial.semiring.{u2} R _inst_1))) (NonAssocSemiring.toNonUnitalNonAssocSemiring.{u1} S (Semiring.toNonAssocSemiring.{u1} S _inst_2)) (RingHomClass.toNonUnitalRingHomClass.{max u2 u1, u2, u1} (RingHom.{u2, u1} (Polynomial.{u2} R _inst_1) S (Semiring.toNonAssocSemiring.{u2} (Polynomial.{u2} R _inst_1) (Polynomial.semiring.{u2} R _inst_1)) (Semiring.toNonAssocSemiring.{u1} S _inst_2)) (Polynomial.{u2} R _inst_1) S (Semiring.toNonAssocSemiring.{u2} (Polynomial.{u2} R _inst_1) (Polynomial.semiring.{u2} R _inst_1)) (Semiring.toNonAssocSemiring.{u1} S _inst_2) (RingHom.instRingHomClassRingHom.{u2, u1} (Polynomial.{u2} R _inst_1) S (Semiring.toNonAssocSemiring.{u2} (Polynomial.{u2} R _inst_1) (Polynomial.semiring.{u2} R _inst_1)) (Semiring.toNonAssocSemiring.{u1} S _inst_2))))) g (Polynomial.X.{u2} R _inst_1))) -> (Eq.{max (succ u2) (succ u1)} (RingHom.{u2, u1} (Polynomial.{u2} R _inst_1) S (Semiring.toNonAssocSemiring.{u2} (Polynomial.{u2} R _inst_1) (Polynomial.semiring.{u2} R _inst_1)) (Semiring.toNonAssocSemiring.{u1} S _inst_2)) f g)
 Case conversion may be inaccurate. Consider using '#align polynomial.ring_hom_ext' Polynomial.ringHom_ext'ₓ'. -/
 @[ext]
 theorem ringHom_ext' {S} [Semiring S] {f g : R[X] →+* S} (h₁ : f.comp C = g.comp C)

69c6a5a1

bump to nightly-2023-05-18-03

mathlib commit https://github.com/leanprover-community/mathlib/commit/c89fe2d59ae06402c3f55f978016d1ada444f57e

b46e9d53

Diff

@@ -36,7 +36,7 @@ variable [Semiring R] {p q r : R[X]}
 lean 3 declaration is
   forall {R : Type.{u1}} [_inst_1 : Semiring.{u1} R] [_inst_2 : Nontrivial.{u1} R] {i : Nat} {j : Nat}, Iff (Eq.{succ u1} (Polynomial.{u1} R _inst_1) (coeFn.{succ u1, succ u1} (LinearMap.{u1, u1, u1, u1} R R _inst_1 _inst_1 (RingHom.id.{u1} R (Semiring.toNonAssocSemiring.{u1} R _inst_1)) R (Polynomial.{u1} R _inst_1) (NonUnitalNonAssocSemiring.toAddCommMonoid.{u1} R (NonAssocSemiring.toNonUnitalNonAssocSemiring.{u1} R (Semiring.toNonAssocSemiring.{u1} R _inst_1))) (NonUnitalNonAssocSemiring.toAddCommMonoid.{u1} (Polynomial.{u1} R _inst_1) (NonAssocSemiring.toNonUnitalNonAssocSemiring.{u1} (Polynomial.{u1} R _inst_1) (Semiring.toNonAssocSemiring.{u1} (Polynomial.{u1} R _inst_1) (Polynomial.semiring.{u1} R _inst_1)))) (Semiring.toModule.{u1} R _inst_1) (Polynomial.module.{u1, u1} R _inst_1 R _inst_1 (Semiring.toModule.{u1} R _inst_1))) (fun (_x : LinearMap.{u1, u1, u1, u1} R R _inst_1 _inst_1 (RingHom.id.{u1} R (Semiring.toNonAssocSemiring.{u1} R _inst_1)) R (Polynomial.{u1} R _inst_1) (NonUnitalNonAssocSemiring.toAddCommMonoid.{u1} R (NonAssocSemiring.toNonUnitalNonAssocSemiring.{u1} R (Semiring.toNonAssocSemiring.{u1} R _inst_1))) (NonUnitalNonAssocSemiring.toAddCommMonoid.{u1} (Polynomial.{u1} R _inst_1) (NonAssocSemiring.toNonUnitalNonAssocSemiring.{u1} (Polynomial.{u1} R _inst_1) (Semiring.toNonAssocSemiring.{u1} (Polynomial.{u1} R _inst_1) (Polynomial.semiring.{u1} R _inst_1)))) (Semiring.toModule.{u1} R _inst_1) (Polynomial.module.{u1, u1} R _inst_1 R _inst_1 (Semiring.toModule.{u1} R _inst_1))) => R -> (Polynomial.{u1} R _inst_1)) (LinearMap.hasCoeToFun.{u1, u1, u1, u1} R R R (Polynomial.{u1} R _inst_1) _inst_1 _inst_1 (NonUnitalNonAssocSemiring.toAddCommMonoid.{u1} R (NonAssocSemiring.toNonUnitalNonAssocSemiring.{u1} R (Semiring.toNonAssocSemiring.{u1} R _inst_1))) (NonUnitalNonAssocSemiring.toAddCommMonoid.{u1} (Polynomial.{u1} R _inst_1) (NonAssocSemiring.toNonUnitalNonAssocSemiring.{u1} (Polynomial.{u1} R _inst_1) (Semiring.toNonAssocSemiring.{u1} (Polynomial.{u1} R _inst_1) (Polynomial.semiring.{u1} R _inst_1)))) (Semiring.toModule.{u1} R _inst_1) (Polynomial.module.{u1, u1} R _inst_1 R _inst_1 (Semiring.toModule.{u1} R _inst_1)) (RingHom.id.{u1} R (Semiring.toNonAssocSemiring.{u1} R _inst_1))) (Polynomial.monomial.{u1} R _inst_1 i) (OfNat.ofNat.{u1} R 1 (OfNat.mk.{u1} R 1 (One.one.{u1} R (AddMonoidWithOne.toOne.{u1} R (AddCommMonoidWithOne.toAddMonoidWithOne.{u1} R (NonAssocSemiring.toAddCommMonoidWithOne.{u1} R (Semiring.toNonAssocSemiring.{u1} R _inst_1)))))))) (coeFn.{succ u1, succ u1} (LinearMap.{u1, u1, u1, u1} R R _inst_1 _inst_1 (RingHom.id.{u1} R (Semiring.toNonAssocSemiring.{u1} R _inst_1)) R (Polynomial.{u1} R _inst_1) (NonUnitalNonAssocSemiring.toAddCommMonoid.{u1} R (NonAssocSemiring.toNonUnitalNonAssocSemiring.{u1} R (Semiring.toNonAssocSemiring.{u1} R _inst_1))) (NonUnitalNonAssocSemiring.toAddCommMonoid.{u1} (Polynomial.{u1} R _inst_1) (NonAssocSemiring.toNonUnitalNonAssocSemiring.{u1} (Polynomial.{u1} R _inst_1) (Semiring.toNonAssocSemiring.{u1} (Polynomial.{u1} R _inst_1) (Polynomial.semiring.{u1} R _inst_1)))) (Semiring.toModule.{u1} R _inst_1) (Polynomial.module.{u1, u1} R _inst_1 R _inst_1 (Semiring.toModule.{u1} R _inst_1))) (fun (_x : LinearMap.{u1, u1, u1, u1} R R _inst_1 _inst_1 (RingHom.id.{u1} R (Semiring.toNonAssocSemiring.{u1} R _inst_1)) R (Polynomial.{u1} R _inst_1) (NonUnitalNonAssocSemiring.toAddCommMonoid.{u1} R (NonAssocSemiring.toNonUnitalNonAssocSemiring.{u1} R (Semiring.toNonAssocSemiring.{u1} R _inst_1))) (NonUnitalNonAssocSemiring.toAddCommMonoid.{u1} (Polynomial.{u1} R _inst_1) (NonAssocSemiring.toNonUnitalNonAssocSemiring.{u1} (Polynomial.{u1} R _inst_1) (Semiring.toNonAssocSemiring.{u1} (Polynomial.{u1} R _inst_1) (Polynomial.semiring.{u1} R _inst_1)))) (Semiring.toModule.{u1} R _inst_1) (Polynomial.module.{u1, u1} R _inst_1 R _inst_1 (Semiring.toModule.{u1} R _inst_1))) => R -> (Polynomial.{u1} R _inst_1)) (LinearMap.hasCoeToFun.{u1, u1, u1, u1} R R R (Polynomial.{u1} R _inst_1) _inst_1 _inst_1 (NonUnitalNonAssocSemiring.toAddCommMonoid.{u1} R (NonAssocSemiring.toNonUnitalNonAssocSemiring.{u1} R (Semiring.toNonAssocSemiring.{u1} R _inst_1))) (NonUnitalNonAssocSemiring.toAddCommMonoid.{u1} (Polynomial.{u1} R _inst_1) (NonAssocSemiring.toNonUnitalNonAssocSemiring.{u1} (Polynomial.{u1} R _inst_1) (Semiring.toNonAssocSemiring.{u1} (Polynomial.{u1} R _inst_1) (Polynomial.semiring.{u1} R _inst_1)))) (Semiring.toModule.{u1} R _inst_1) (Polynomial.module.{u1, u1} R _inst_1 R _inst_1 (Semiring.toModule.{u1} R _inst_1)) (RingHom.id.{u1} R (Semiring.toNonAssocSemiring.{u1} R _inst_1))) (Polynomial.monomial.{u1} R _inst_1 j) (OfNat.ofNat.{u1} R 1 (OfNat.mk.{u1} R 1 (One.one.{u1} R (AddMonoidWithOne.toOne.{u1} R (AddCommMonoidWithOne.toAddMonoidWithOne.{u1} R (NonAssocSemiring.toAddCommMonoidWithOne.{u1} R (Semiring.toNonAssocSemiring.{u1} R _inst_1))))))))) (Eq.{1} Nat i j)
 but is expected to have type
-  forall {R : Type.{u1}} [_inst_1 : Semiring.{u1} R] [_inst_2 : Nontrivial.{u1} R] {i : Nat} {j : Nat}, Iff (Eq.{succ u1} ((fun (x._@.Mathlib.Algebra.Module.LinearMap._hyg.6190 : R) => Polynomial.{u1} R _inst_1) (OfNat.ofNat.{u1} R 1 (One.toOfNat1.{u1} R (Semiring.toOne.{u1} R _inst_1)))) (FunLike.coe.{succ u1, succ u1, succ u1} (LinearMap.{u1, u1, u1, u1} R R _inst_1 _inst_1 (RingHom.id.{u1} R (Semiring.toNonAssocSemiring.{u1} R _inst_1)) R (Polynomial.{u1} R _inst_1) (NonUnitalNonAssocSemiring.toAddCommMonoid.{u1} R (NonAssocSemiring.toNonUnitalNonAssocSemiring.{u1} R (Semiring.toNonAssocSemiring.{u1} R _inst_1))) (NonUnitalNonAssocSemiring.toAddCommMonoid.{u1} (Polynomial.{u1} R _inst_1) (NonAssocSemiring.toNonUnitalNonAssocSemiring.{u1} (Polynomial.{u1} R _inst_1) (Semiring.toNonAssocSemiring.{u1} (Polynomial.{u1} R _inst_1) (Polynomial.semiring.{u1} R _inst_1)))) (Semiring.toModule.{u1} R _inst_1) (Polynomial.module.{u1, u1} R _inst_1 R _inst_1 (Semiring.toModule.{u1} R _inst_1))) R (fun (_x : R) => (fun (x._@.Mathlib.Algebra.Module.LinearMap._hyg.6190 : R) => Polynomial.{u1} R _inst_1) _x) (LinearMap.instFunLikeLinearMap.{u1, u1, u1, u1} R R R (Polynomial.{u1} R _inst_1) _inst_1 _inst_1 (NonUnitalNonAssocSemiring.toAddCommMonoid.{u1} R (NonAssocSemiring.toNonUnitalNonAssocSemiring.{u1} R (Semiring.toNonAssocSemiring.{u1} R _inst_1))) (NonUnitalNonAssocSemiring.toAddCommMonoid.{u1} (Polynomial.{u1} R _inst_1) (NonAssocSemiring.toNonUnitalNonAssocSemiring.{u1} (Polynomial.{u1} R _inst_1) (Semiring.toNonAssocSemiring.{u1} (Polynomial.{u1} R _inst_1) (Polynomial.semiring.{u1} R _inst_1)))) (Semiring.toModule.{u1} R _inst_1) (Polynomial.module.{u1, u1} R _inst_1 R _inst_1 (Semiring.toModule.{u1} R _inst_1)) (RingHom.id.{u1} R (Semiring.toNonAssocSemiring.{u1} R _inst_1))) (Polynomial.monomial.{u1} R _inst_1 i) (OfNat.ofNat.{u1} R 1 (One.toOfNat1.{u1} R (Semiring.toOne.{u1} R _inst_1)))) (FunLike.coe.{succ u1, succ u1, succ u1} (LinearMap.{u1, u1, u1, u1} R R _inst_1 _inst_1 (RingHom.id.{u1} R (Semiring.toNonAssocSemiring.{u1} R _inst_1)) R (Polynomial.{u1} R _inst_1) (NonUnitalNonAssocSemiring.toAddCommMonoid.{u1} R (NonAssocSemiring.toNonUnitalNonAssocSemiring.{u1} R (Semiring.toNonAssocSemiring.{u1} R _inst_1))) (NonUnitalNonAssocSemiring.toAddCommMonoid.{u1} (Polynomial.{u1} R _inst_1) (NonAssocSemiring.toNonUnitalNonAssocSemiring.{u1} (Polynomial.{u1} R _inst_1) (Semiring.toNonAssocSemiring.{u1} (Polynomial.{u1} R _inst_1) (Polynomial.semiring.{u1} R _inst_1)))) (Semiring.toModule.{u1} R _inst_1) (Polynomial.module.{u1, u1} R _inst_1 R _inst_1 (Semiring.toModule.{u1} R _inst_1))) R (fun (_x : R) => (fun (x._@.Mathlib.Algebra.Module.LinearMap._hyg.6190 : R) => Polynomial.{u1} R _inst_1) _x) (LinearMap.instFunLikeLinearMap.{u1, u1, u1, u1} R R R (Polynomial.{u1} R _inst_1) _inst_1 _inst_1 (NonUnitalNonAssocSemiring.toAddCommMonoid.{u1} R (NonAssocSemiring.toNonUnitalNonAssocSemiring.{u1} R (Semiring.toNonAssocSemiring.{u1} R _inst_1))) (NonUnitalNonAssocSemiring.toAddCommMonoid.{u1} (Polynomial.{u1} R _inst_1) (NonAssocSemiring.toNonUnitalNonAssocSemiring.{u1} (Polynomial.{u1} R _inst_1) (Semiring.toNonAssocSemiring.{u1} (Polynomial.{u1} R _inst_1) (Polynomial.semiring.{u1} R _inst_1)))) (Semiring.toModule.{u1} R _inst_1) (Polynomial.module.{u1, u1} R _inst_1 R _inst_1 (Semiring.toModule.{u1} R _inst_1)) (RingHom.id.{u1} R (Semiring.toNonAssocSemiring.{u1} R _inst_1))) (Polynomial.monomial.{u1} R _inst_1 j) (OfNat.ofNat.{u1} R 1 (One.toOfNat1.{u1} R (Semiring.toOne.{u1} R _inst_1))))) (Eq.{1} Nat i j)
+  forall {R : Type.{u1}} [_inst_1 : Semiring.{u1} R] [_inst_2 : Nontrivial.{u1} R] {i : Nat} {j : Nat}, Iff (Eq.{succ u1} ((fun (x._@.Mathlib.Algebra.Module.LinearMap._hyg.6191 : R) => Polynomial.{u1} R _inst_1) (OfNat.ofNat.{u1} R 1 (One.toOfNat1.{u1} R (Semiring.toOne.{u1} R _inst_1)))) (FunLike.coe.{succ u1, succ u1, succ u1} (LinearMap.{u1, u1, u1, u1} R R _inst_1 _inst_1 (RingHom.id.{u1} R (Semiring.toNonAssocSemiring.{u1} R _inst_1)) R (Polynomial.{u1} R _inst_1) (NonUnitalNonAssocSemiring.toAddCommMonoid.{u1} R (NonAssocSemiring.toNonUnitalNonAssocSemiring.{u1} R (Semiring.toNonAssocSemiring.{u1} R _inst_1))) (NonUnitalNonAssocSemiring.toAddCommMonoid.{u1} (Polynomial.{u1} R _inst_1) (NonAssocSemiring.toNonUnitalNonAssocSemiring.{u1} (Polynomial.{u1} R _inst_1) (Semiring.toNonAssocSemiring.{u1} (Polynomial.{u1} R _inst_1) (Polynomial.semiring.{u1} R _inst_1)))) (Semiring.toModule.{u1} R _inst_1) (Polynomial.module.{u1, u1} R _inst_1 R _inst_1 (Semiring.toModule.{u1} R _inst_1))) R (fun (_x : R) => (fun (x._@.Mathlib.Algebra.Module.LinearMap._hyg.6191 : R) => Polynomial.{u1} R _inst_1) _x) (LinearMap.instFunLikeLinearMap.{u1, u1, u1, u1} R R R (Polynomial.{u1} R _inst_1) _inst_1 _inst_1 (NonUnitalNonAssocSemiring.toAddCommMonoid.{u1} R (NonAssocSemiring.toNonUnitalNonAssocSemiring.{u1} R (Semiring.toNonAssocSemiring.{u1} R _inst_1))) (NonUnitalNonAssocSemiring.toAddCommMonoid.{u1} (Polynomial.{u1} R _inst_1) (NonAssocSemiring.toNonUnitalNonAssocSemiring.{u1} (Polynomial.{u1} R _inst_1) (Semiring.toNonAssocSemiring.{u1} (Polynomial.{u1} R _inst_1) (Polynomial.semiring.{u1} R _inst_1)))) (Semiring.toModule.{u1} R _inst_1) (Polynomial.module.{u1, u1} R _inst_1 R _inst_1 (Semiring.toModule.{u1} R _inst_1)) (RingHom.id.{u1} R (Semiring.toNonAssocSemiring.{u1} R _inst_1))) (Polynomial.monomial.{u1} R _inst_1 i) (OfNat.ofNat.{u1} R 1 (One.toOfNat1.{u1} R (Semiring.toOne.{u1} R _inst_1)))) (FunLike.coe.{succ u1, succ u1, succ u1} (LinearMap.{u1, u1, u1, u1} R R _inst_1 _inst_1 (RingHom.id.{u1} R (Semiring.toNonAssocSemiring.{u1} R _inst_1)) R (Polynomial.{u1} R _inst_1) (NonUnitalNonAssocSemiring.toAddCommMonoid.{u1} R (NonAssocSemiring.toNonUnitalNonAssocSemiring.{u1} R (Semiring.toNonAssocSemiring.{u1} R _inst_1))) (NonUnitalNonAssocSemiring.toAddCommMonoid.{u1} (Polynomial.{u1} R _inst_1) (NonAssocSemiring.toNonUnitalNonAssocSemiring.{u1} (Polynomial.{u1} R _inst_1) (Semiring.toNonAssocSemiring.{u1} (Polynomial.{u1} R _inst_1) (Polynomial.semiring.{u1} R _inst_1)))) (Semiring.toModule.{u1} R _inst_1) (Polynomial.module.{u1, u1} R _inst_1 R _inst_1 (Semiring.toModule.{u1} R _inst_1))) R (fun (_x : R) => (fun (x._@.Mathlib.Algebra.Module.LinearMap._hyg.6191 : R) => Polynomial.{u1} R _inst_1) _x) (LinearMap.instFunLikeLinearMap.{u1, u1, u1, u1} R R R (Polynomial.{u1} R _inst_1) _inst_1 _inst_1 (NonUnitalNonAssocSemiring.toAddCommMonoid.{u1} R (NonAssocSemiring.toNonUnitalNonAssocSemiring.{u1} R (Semiring.toNonAssocSemiring.{u1} R _inst_1))) (NonUnitalNonAssocSemiring.toAddCommMonoid.{u1} (Polynomial.{u1} R _inst_1) (NonAssocSemiring.toNonUnitalNonAssocSemiring.{u1} (Polynomial.{u1} R _inst_1) (Semiring.toNonAssocSemiring.{u1} (Polynomial.{u1} R _inst_1) (Polynomial.semiring.{u1} R _inst_1)))) (Semiring.toModule.{u1} R _inst_1) (Polynomial.module.{u1, u1} R _inst_1 R _inst_1 (Semiring.toModule.{u1} R _inst_1)) (RingHom.id.{u1} R (Semiring.toNonAssocSemiring.{u1} R _inst_1))) (Polynomial.monomial.{u1} R _inst_1 j) (OfNat.ofNat.{u1} R 1 (One.toOfNat1.{u1} R (Semiring.toOne.{u1} R _inst_1))))) (Eq.{1} Nat i j)
 Case conversion may be inaccurate. Consider using '#align polynomial.monomial_one_eq_iff Polynomial.monomial_one_eq_iffₓ'. -/
 theorem monomial_one_eq_iff [Nontrivial R] {i j : ℕ} :
     (monomial i 1 : R[X]) = monomial j 1 ↔ i = j :=
@@ -52,7 +52,7 @@ instance [Nontrivial R] : Infinite R[X] :=
 lean 3 declaration is
   forall {R : Type.{u1}} [_inst_1 : Semiring.{u1} R] {f : Polynomial.{u1} R _inst_1}, Iff (LE.le.{0} Nat Nat.hasLe (Finset.card.{0} Nat (Polynomial.support.{u1} R _inst_1 f)) (OfNat.ofNat.{0} Nat 1 (OfNat.mk.{0} Nat 1 (One.one.{0} Nat Nat.hasOne)))) (Exists.{1} Nat (fun (n : Nat) => Exists.{succ u1} R (fun (a : R) => Eq.{succ u1} (Polynomial.{u1} R _inst_1) f (coeFn.{succ u1, succ u1} (LinearMap.{u1, u1, u1, u1} R R _inst_1 _inst_1 (RingHom.id.{u1} R (Semiring.toNonAssocSemiring.{u1} R _inst_1)) R (Polynomial.{u1} R _inst_1) (NonUnitalNonAssocSemiring.toAddCommMonoid.{u1} R (NonAssocSemiring.toNonUnitalNonAssocSemiring.{u1} R (Semiring.toNonAssocSemiring.{u1} R _inst_1))) (NonUnitalNonAssocSemiring.toAddCommMonoid.{u1} (Polynomial.{u1} R _inst_1) (NonAssocSemiring.toNonUnitalNonAssocSemiring.{u1} (Polynomial.{u1} R _inst_1) (Semiring.toNonAssocSemiring.{u1} (Polynomial.{u1} R _inst_1) (Polynomial.semiring.{u1} R _inst_1)))) (Semiring.toModule.{u1} R _inst_1) (Polynomial.module.{u1, u1} R _inst_1 R _inst_1 (Semiring.toModule.{u1} R _inst_1))) (fun (_x : LinearMap.{u1, u1, u1, u1} R R _inst_1 _inst_1 (RingHom.id.{u1} R (Semiring.toNonAssocSemiring.{u1} R _inst_1)) R (Polynomial.{u1} R _inst_1) (NonUnitalNonAssocSemiring.toAddCommMonoid.{u1} R (NonAssocSemiring.toNonUnitalNonAssocSemiring.{u1} R (Semiring.toNonAssocSemiring.{u1} R _inst_1))) (NonUnitalNonAssocSemiring.toAddCommMonoid.{u1} (Polynomial.{u1} R _inst_1) (NonAssocSemiring.toNonUnitalNonAssocSemiring.{u1} (Polynomial.{u1} R _inst_1) (Semiring.toNonAssocSemiring.{u1} (Polynomial.{u1} R _inst_1) (Polynomial.semiring.{u1} R _inst_1)))) (Semiring.toModule.{u1} R _inst_1) (Polynomial.module.{u1, u1} R _inst_1 R _inst_1 (Semiring.toModule.{u1} R _inst_1))) => R -> (Polynomial.{u1} R _inst_1)) (LinearMap.hasCoeToFun.{u1, u1, u1, u1} R R R (Polynomial.{u1} R _inst_1) _inst_1 _inst_1 (NonUnitalNonAssocSemiring.toAddCommMonoid.{u1} R (NonAssocSemiring.toNonUnitalNonAssocSemiring.{u1} R (Semiring.toNonAssocSemiring.{u1} R _inst_1))) (NonUnitalNonAssocSemiring.toAddCommMonoid.{u1} (Polynomial.{u1} R _inst_1) (NonAssocSemiring.toNonUnitalNonAssocSemiring.{u1} (Polynomial.{u1} R _inst_1) (Semiring.toNonAssocSemiring.{u1} (Polynomial.{u1} R _inst_1) (Polynomial.semiring.{u1} R _inst_1)))) (Semiring.toModule.{u1} R _inst_1) (Polynomial.module.{u1, u1} R _inst_1 R _inst_1 (Semiring.toModule.{u1} R _inst_1)) (RingHom.id.{u1} R (Semiring.toNonAssocSemiring.{u1} R _inst_1))) (Polynomial.monomial.{u1} R _inst_1 n) a))))
 but is expected to have type
-  forall {R : Type.{u1}} [_inst_1 : Semiring.{u1} R] {f : Polynomial.{u1} R _inst_1}, Iff (LE.le.{0} Nat instLENat (Finset.card.{0} Nat (Polynomial.support.{u1} R _inst_1 f)) (OfNat.ofNat.{0} Nat 1 (instOfNatNat 1))) (Exists.{1} Nat (fun (n : Nat) => Exists.{succ u1} R (fun (a : R) => Eq.{succ u1} (Polynomial.{u1} R _inst_1) f (FunLike.coe.{succ u1, succ u1, succ u1} (LinearMap.{u1, u1, u1, u1} R R _inst_1 _inst_1 (RingHom.id.{u1} R (Semiring.toNonAssocSemiring.{u1} R _inst_1)) R (Polynomial.{u1} R _inst_1) (NonUnitalNonAssocSemiring.toAddCommMonoid.{u1} R (NonAssocSemiring.toNonUnitalNonAssocSemiring.{u1} R (Semiring.toNonAssocSemiring.{u1} R _inst_1))) (NonUnitalNonAssocSemiring.toAddCommMonoid.{u1} (Polynomial.{u1} R _inst_1) (NonAssocSemiring.toNonUnitalNonAssocSemiring.{u1} (Polynomial.{u1} R _inst_1) (Semiring.toNonAssocSemiring.{u1} (Polynomial.{u1} R _inst_1) (Polynomial.semiring.{u1} R _inst_1)))) (Semiring.toModule.{u1} R _inst_1) (Polynomial.module.{u1, u1} R _inst_1 R _inst_1 (Semiring.toModule.{u1} R _inst_1))) R (fun (_x : R) => (fun (x._@.Mathlib.Algebra.Module.LinearMap._hyg.6190 : R) => Polynomial.{u1} R _inst_1) _x) (LinearMap.instFunLikeLinearMap.{u1, u1, u1, u1} R R R (Polynomial.{u1} R _inst_1) _inst_1 _inst_1 (NonUnitalNonAssocSemiring.toAddCommMonoid.{u1} R (NonAssocSemiring.toNonUnitalNonAssocSemiring.{u1} R (Semiring.toNonAssocSemiring.{u1} R _inst_1))) (NonUnitalNonAssocSemiring.toAddCommMonoid.{u1} (Polynomial.{u1} R _inst_1) (NonAssocSemiring.toNonUnitalNonAssocSemiring.{u1} (Polynomial.{u1} R _inst_1) (Semiring.toNonAssocSemiring.{u1} (Polynomial.{u1} R _inst_1) (Polynomial.semiring.{u1} R _inst_1)))) (Semiring.toModule.{u1} R _inst_1) (Polynomial.module.{u1, u1} R _inst_1 R _inst_1 (Semiring.toModule.{u1} R _inst_1)) (RingHom.id.{u1} R (Semiring.toNonAssocSemiring.{u1} R _inst_1))) (Polynomial.monomial.{u1} R _inst_1 n) a))))
+  forall {R : Type.{u1}} [_inst_1 : Semiring.{u1} R] {f : Polynomial.{u1} R _inst_1}, Iff (LE.le.{0} Nat instLENat (Finset.card.{0} Nat (Polynomial.support.{u1} R _inst_1 f)) (OfNat.ofNat.{0} Nat 1 (instOfNatNat 1))) (Exists.{1} Nat (fun (n : Nat) => Exists.{succ u1} R (fun (a : R) => Eq.{succ u1} (Polynomial.{u1} R _inst_1) f (FunLike.coe.{succ u1, succ u1, succ u1} (LinearMap.{u1, u1, u1, u1} R R _inst_1 _inst_1 (RingHom.id.{u1} R (Semiring.toNonAssocSemiring.{u1} R _inst_1)) R (Polynomial.{u1} R _inst_1) (NonUnitalNonAssocSemiring.toAddCommMonoid.{u1} R (NonAssocSemiring.toNonUnitalNonAssocSemiring.{u1} R (Semiring.toNonAssocSemiring.{u1} R _inst_1))) (NonUnitalNonAssocSemiring.toAddCommMonoid.{u1} (Polynomial.{u1} R _inst_1) (NonAssocSemiring.toNonUnitalNonAssocSemiring.{u1} (Polynomial.{u1} R _inst_1) (Semiring.toNonAssocSemiring.{u1} (Polynomial.{u1} R _inst_1) (Polynomial.semiring.{u1} R _inst_1)))) (Semiring.toModule.{u1} R _inst_1) (Polynomial.module.{u1, u1} R _inst_1 R _inst_1 (Semiring.toModule.{u1} R _inst_1))) R (fun (_x : R) => (fun (x._@.Mathlib.Algebra.Module.LinearMap._hyg.6191 : R) => Polynomial.{u1} R _inst_1) _x) (LinearMap.instFunLikeLinearMap.{u1, u1, u1, u1} R R R (Polynomial.{u1} R _inst_1) _inst_1 _inst_1 (NonUnitalNonAssocSemiring.toAddCommMonoid.{u1} R (NonAssocSemiring.toNonUnitalNonAssocSemiring.{u1} R (Semiring.toNonAssocSemiring.{u1} R _inst_1))) (NonUnitalNonAssocSemiring.toAddCommMonoid.{u1} (Polynomial.{u1} R _inst_1) (NonAssocSemiring.toNonUnitalNonAssocSemiring.{u1} (Polynomial.{u1} R _inst_1) (Semiring.toNonAssocSemiring.{u1} (Polynomial.{u1} R _inst_1) (Polynomial.semiring.{u1} R _inst_1)))) (Semiring.toModule.{u1} R _inst_1) (Polynomial.module.{u1, u1} R _inst_1 R _inst_1 (Semiring.toModule.{u1} R _inst_1)) (RingHom.id.{u1} R (Semiring.toNonAssocSemiring.{u1} R _inst_1))) (Polynomial.monomial.{u1} R _inst_1 n) a))))
 Case conversion may be inaccurate. Consider using '#align polynomial.card_support_le_one_iff_monomial Polynomial.card_support_le_one_iff_monomialₓ'. -/
 theorem card_support_le_one_iff_monomial {f : R[X]} :
     Finset.card f.support ≤ 1 ↔ ∃ n a, f = monomial n a :=

69c6a5a1

bump to nightly-2023-03-14-02

mathlib commit https://github.com/leanprover-community/mathlib/commit/2196ab363eb097c008d4497125e0dde23fb36db2

d4b38a42

Diff

@@ -4,7 +4,7 @@ Released under Apache 2.0 license as described in the file LICENSE.
 Authors: Chris Hughes, Johannes Hölzl, Scott Morrison, Jens Wagemaker
 
 ! This file was ported from Lean 3 source module data.polynomial.monomial
-! leanprover-community/mathlib commit 220f71ba506c8958c9b41bd82226b3d06b0991e8
+! leanprover-community/mathlib commit 69c6a5a12d8a2b159f20933e60115a4f2de62b58
 ! Please do not edit these lines, except to modify the commit id
 ! if you have ported upstream changes.
 -/
@@ -13,6 +13,9 @@ import Mathbin.Data.Polynomial.Basic
 /-!
 # Univariate monomials
 
+> THIS FILE IS SYNCHRONIZED WITH MATHLIB4.
+> Any changes to this file require a corresponding PR to mathlib4.
+
 Preparatory lemmas for degree_basic.
 -/

220f71ba

bump to nightly-2023-03-11-22

mathlib commit https://github.com/leanprover-community/mathlib/commit/3180fab693e2cee3bff62675571264cb8778b212

a8ee822f

Diff

@@ -33,7 +33,7 @@ variable [Semiring R] {p q r : R[X]}
 lean 3 declaration is
   forall {R : Type.{u1}} [_inst_1 : Semiring.{u1} R] [_inst_2 : Nontrivial.{u1} R] {i : Nat} {j : Nat}, Iff (Eq.{succ u1} (Polynomial.{u1} R _inst_1) (coeFn.{succ u1, succ u1} (LinearMap.{u1, u1, u1, u1} R R _inst_1 _inst_1 (RingHom.id.{u1} R (Semiring.toNonAssocSemiring.{u1} R _inst_1)) R (Polynomial.{u1} R _inst_1) (NonUnitalNonAssocSemiring.toAddCommMonoid.{u1} R (NonAssocSemiring.toNonUnitalNonAssocSemiring.{u1} R (Semiring.toNonAssocSemiring.{u1} R _inst_1))) (NonUnitalNonAssocSemiring.toAddCommMonoid.{u1} (Polynomial.{u1} R _inst_1) (NonAssocSemiring.toNonUnitalNonAssocSemiring.{u1} (Polynomial.{u1} R _inst_1) (Semiring.toNonAssocSemiring.{u1} (Polynomial.{u1} R _inst_1) (Polynomial.semiring.{u1} R _inst_1)))) (Semiring.toModule.{u1} R _inst_1) (Polynomial.module.{u1, u1} R _inst_1 R _inst_1 (Semiring.toModule.{u1} R _inst_1))) (fun (_x : LinearMap.{u1, u1, u1, u1} R R _inst_1 _inst_1 (RingHom.id.{u1} R (Semiring.toNonAssocSemiring.{u1} R _inst_1)) R (Polynomial.{u1} R _inst_1) (NonUnitalNonAssocSemiring.toAddCommMonoid.{u1} R (NonAssocSemiring.toNonUnitalNonAssocSemiring.{u1} R (Semiring.toNonAssocSemiring.{u1} R _inst_1))) (NonUnitalNonAssocSemiring.toAddCommMonoid.{u1} (Polynomial.{u1} R _inst_1) (NonAssocSemiring.toNonUnitalNonAssocSemiring.{u1} (Polynomial.{u1} R _inst_1) (Semiring.toNonAssocSemiring.{u1} (Polynomial.{u1} R _inst_1) (Polynomial.semiring.{u1} R _inst_1)))) (Semiring.toModule.{u1} R _inst_1) (Polynomial.module.{u1, u1} R _inst_1 R _inst_1 (Semiring.toModule.{u1} R _inst_1))) => R -> (Polynomial.{u1} R _inst_1)) (LinearMap.hasCoeToFun.{u1, u1, u1, u1} R R R (Polynomial.{u1} R _inst_1) _inst_1 _inst_1 (NonUnitalNonAssocSemiring.toAddCommMonoid.{u1} R (NonAssocSemiring.toNonUnitalNonAssocSemiring.{u1} R (Semiring.toNonAssocSemiring.{u1} R _inst_1))) (NonUnitalNonAssocSemiring.toAddCommMonoid.{u1} (Polynomial.{u1} R _inst_1) (NonAssocSemiring.toNonUnitalNonAssocSemiring.{u1} (Polynomial.{u1} R _inst_1) (Semiring.toNonAssocSemiring.{u1} (Polynomial.{u1} R _inst_1) (Polynomial.semiring.{u1} R _inst_1)))) (Semiring.toModule.{u1} R _inst_1) (Polynomial.module.{u1, u1} R _inst_1 R _inst_1 (Semiring.toModule.{u1} R _inst_1)) (RingHom.id.{u1} R (Semiring.toNonAssocSemiring.{u1} R _inst_1))) (Polynomial.monomial.{u1} R _inst_1 i) (OfNat.ofNat.{u1} R 1 (OfNat.mk.{u1} R 1 (One.one.{u1} R (AddMonoidWithOne.toOne.{u1} R (AddCommMonoidWithOne.toAddMonoidWithOne.{u1} R (NonAssocSemiring.toAddCommMonoidWithOne.{u1} R (Semiring.toNonAssocSemiring.{u1} R _inst_1)))))))) (coeFn.{succ u1, succ u1} (LinearMap.{u1, u1, u1, u1} R R _inst_1 _inst_1 (RingHom.id.{u1} R (Semiring.toNonAssocSemiring.{u1} R _inst_1)) R (Polynomial.{u1} R _inst_1) (NonUnitalNonAssocSemiring.toAddCommMonoid.{u1} R (NonAssocSemiring.toNonUnitalNonAssocSemiring.{u1} R (Semiring.toNonAssocSemiring.{u1} R _inst_1))) (NonUnitalNonAssocSemiring.toAddCommMonoid.{u1} (Polynomial.{u1} R _inst_1) (NonAssocSemiring.toNonUnitalNonAssocSemiring.{u1} (Polynomial.{u1} R _inst_1) (Semiring.toNonAssocSemiring.{u1} (Polynomial.{u1} R _inst_1) (Polynomial.semiring.{u1} R _inst_1)))) (Semiring.toModule.{u1} R _inst_1) (Polynomial.module.{u1, u1} R _inst_1 R _inst_1 (Semiring.toModule.{u1} R _inst_1))) (fun (_x : LinearMap.{u1, u1, u1, u1} R R _inst_1 _inst_1 (RingHom.id.{u1} R (Semiring.toNonAssocSemiring.{u1} R _inst_1)) R (Polynomial.{u1} R _inst_1) (NonUnitalNonAssocSemiring.toAddCommMonoid.{u1} R (NonAssocSemiring.toNonUnitalNonAssocSemiring.{u1} R (Semiring.toNonAssocSemiring.{u1} R _inst_1))) (NonUnitalNonAssocSemiring.toAddCommMonoid.{u1} (Polynomial.{u1} R _inst_1) (NonAssocSemiring.toNonUnitalNonAssocSemiring.{u1} (Polynomial.{u1} R _inst_1) (Semiring.toNonAssocSemiring.{u1} (Polynomial.{u1} R _inst_1) (Polynomial.semiring.{u1} R _inst_1)))) (Semiring.toModule.{u1} R _inst_1) (Polynomial.module.{u1, u1} R _inst_1 R _inst_1 (Semiring.toModule.{u1} R _inst_1))) => R -> (Polynomial.{u1} R _inst_1)) (LinearMap.hasCoeToFun.{u1, u1, u1, u1} R R R (Polynomial.{u1} R _inst_1) _inst_1 _inst_1 (NonUnitalNonAssocSemiring.toAddCommMonoid.{u1} R (NonAssocSemiring.toNonUnitalNonAssocSemiring.{u1} R (Semiring.toNonAssocSemiring.{u1} R _inst_1))) (NonUnitalNonAssocSemiring.toAddCommMonoid.{u1} (Polynomial.{u1} R _inst_1) (NonAssocSemiring.toNonUnitalNonAssocSemiring.{u1} (Polynomial.{u1} R _inst_1) (Semiring.toNonAssocSemiring.{u1} (Polynomial.{u1} R _inst_1) (Polynomial.semiring.{u1} R _inst_1)))) (Semiring.toModule.{u1} R _inst_1) (Polynomial.module.{u1, u1} R _inst_1 R _inst_1 (Semiring.toModule.{u1} R _inst_1)) (RingHom.id.{u1} R (Semiring.toNonAssocSemiring.{u1} R _inst_1))) (Polynomial.monomial.{u1} R _inst_1 j) (OfNat.ofNat.{u1} R 1 (OfNat.mk.{u1} R 1 (One.one.{u1} R (AddMonoidWithOne.toOne.{u1} R (AddCommMonoidWithOne.toAddMonoidWithOne.{u1} R (NonAssocSemiring.toAddCommMonoidWithOne.{u1} R (Semiring.toNonAssocSemiring.{u1} R _inst_1))))))))) (Eq.{1} Nat i j)
 but is expected to have type
-  forall {R : Type.{u1}} [_inst_1 : Semiring.{u1} R] [_inst_2 : Nontrivial.{u1} R] {i : Nat} {j : Nat}, Iff (Eq.{succ u1} ((fun (x._@.Mathlib.Algebra.Module.LinearMap._hyg.6178 : R) => Polynomial.{u1} R _inst_1) (OfNat.ofNat.{u1} R 1 (One.toOfNat1.{u1} R (Semiring.toOne.{u1} R _inst_1)))) (FunLike.coe.{succ u1, succ u1, succ u1} (LinearMap.{u1, u1, u1, u1} R R _inst_1 _inst_1 (RingHom.id.{u1} R (Semiring.toNonAssocSemiring.{u1} R _inst_1)) R (Polynomial.{u1} R _inst_1) (NonUnitalNonAssocSemiring.toAddCommMonoid.{u1} R (NonAssocSemiring.toNonUnitalNonAssocSemiring.{u1} R (Semiring.toNonAssocSemiring.{u1} R _inst_1))) (NonUnitalNonAssocSemiring.toAddCommMonoid.{u1} (Polynomial.{u1} R _inst_1) (NonAssocSemiring.toNonUnitalNonAssocSemiring.{u1} (Polynomial.{u1} R _inst_1) (Semiring.toNonAssocSemiring.{u1} (Polynomial.{u1} R _inst_1) (Polynomial.semiring.{u1} R _inst_1)))) (Semiring.toModule.{u1} R _inst_1) (Polynomial.module.{u1, u1} R _inst_1 R _inst_1 (Semiring.toModule.{u1} R _inst_1))) R (fun (_x : R) => (fun (x._@.Mathlib.Algebra.Module.LinearMap._hyg.6178 : R) => Polynomial.{u1} R _inst_1) _x) (LinearMap.instFunLikeLinearMap.{u1, u1, u1, u1} R R R (Polynomial.{u1} R _inst_1) _inst_1 _inst_1 (NonUnitalNonAssocSemiring.toAddCommMonoid.{u1} R (NonAssocSemiring.toNonUnitalNonAssocSemiring.{u1} R (Semiring.toNonAssocSemiring.{u1} R _inst_1))) (NonUnitalNonAssocSemiring.toAddCommMonoid.{u1} (Polynomial.{u1} R _inst_1) (NonAssocSemiring.toNonUnitalNonAssocSemiring.{u1} (Polynomial.{u1} R _inst_1) (Semiring.toNonAssocSemiring.{u1} (Polynomial.{u1} R _inst_1) (Polynomial.semiring.{u1} R _inst_1)))) (Semiring.toModule.{u1} R _inst_1) (Polynomial.module.{u1, u1} R _inst_1 R _inst_1 (Semiring.toModule.{u1} R _inst_1)) (RingHom.id.{u1} R (Semiring.toNonAssocSemiring.{u1} R _inst_1))) (Polynomial.monomial.{u1} R _inst_1 i) (OfNat.ofNat.{u1} R 1 (One.toOfNat1.{u1} R (Semiring.toOne.{u1} R _inst_1)))) (FunLike.coe.{succ u1, succ u1, succ u1} (LinearMap.{u1, u1, u1, u1} R R _inst_1 _inst_1 (RingHom.id.{u1} R (Semiring.toNonAssocSemiring.{u1} R _inst_1)) R (Polynomial.{u1} R _inst_1) (NonUnitalNonAssocSemiring.toAddCommMonoid.{u1} R (NonAssocSemiring.toNonUnitalNonAssocSemiring.{u1} R (Semiring.toNonAssocSemiring.{u1} R _inst_1))) (NonUnitalNonAssocSemiring.toAddCommMonoid.{u1} (Polynomial.{u1} R _inst_1) (NonAssocSemiring.toNonUnitalNonAssocSemiring.{u1} (Polynomial.{u1} R _inst_1) (Semiring.toNonAssocSemiring.{u1} (Polynomial.{u1} R _inst_1) (Polynomial.semiring.{u1} R _inst_1)))) (Semiring.toModule.{u1} R _inst_1) (Polynomial.module.{u1, u1} R _inst_1 R _inst_1 (Semiring.toModule.{u1} R _inst_1))) R (fun (_x : R) => (fun (x._@.Mathlib.Algebra.Module.LinearMap._hyg.6178 : R) => Polynomial.{u1} R _inst_1) _x) (LinearMap.instFunLikeLinearMap.{u1, u1, u1, u1} R R R (Polynomial.{u1} R _inst_1) _inst_1 _inst_1 (NonUnitalNonAssocSemiring.toAddCommMonoid.{u1} R (NonAssocSemiring.toNonUnitalNonAssocSemiring.{u1} R (Semiring.toNonAssocSemiring.{u1} R _inst_1))) (NonUnitalNonAssocSemiring.toAddCommMonoid.{u1} (Polynomial.{u1} R _inst_1) (NonAssocSemiring.toNonUnitalNonAssocSemiring.{u1} (Polynomial.{u1} R _inst_1) (Semiring.toNonAssocSemiring.{u1} (Polynomial.{u1} R _inst_1) (Polynomial.semiring.{u1} R _inst_1)))) (Semiring.toModule.{u1} R _inst_1) (Polynomial.module.{u1, u1} R _inst_1 R _inst_1 (Semiring.toModule.{u1} R _inst_1)) (RingHom.id.{u1} R (Semiring.toNonAssocSemiring.{u1} R _inst_1))) (Polynomial.monomial.{u1} R _inst_1 j) (OfNat.ofNat.{u1} R 1 (One.toOfNat1.{u1} R (Semiring.toOne.{u1} R _inst_1))))) (Eq.{1} Nat i j)
+  forall {R : Type.{u1}} [_inst_1 : Semiring.{u1} R] [_inst_2 : Nontrivial.{u1} R] {i : Nat} {j : Nat}, Iff (Eq.{succ u1} ((fun (x._@.Mathlib.Algebra.Module.LinearMap._hyg.6190 : R) => Polynomial.{u1} R _inst_1) (OfNat.ofNat.{u1} R 1 (One.toOfNat1.{u1} R (Semiring.toOne.{u1} R _inst_1)))) (FunLike.coe.{succ u1, succ u1, succ u1} (LinearMap.{u1, u1, u1, u1} R R _inst_1 _inst_1 (RingHom.id.{u1} R (Semiring.toNonAssocSemiring.{u1} R _inst_1)) R (Polynomial.{u1} R _inst_1) (NonUnitalNonAssocSemiring.toAddCommMonoid.{u1} R (NonAssocSemiring.toNonUnitalNonAssocSemiring.{u1} R (Semiring.toNonAssocSemiring.{u1} R _inst_1))) (NonUnitalNonAssocSemiring.toAddCommMonoid.{u1} (Polynomial.{u1} R _inst_1) (NonAssocSemiring.toNonUnitalNonAssocSemiring.{u1} (Polynomial.{u1} R _inst_1) (Semiring.toNonAssocSemiring.{u1} (Polynomial.{u1} R _inst_1) (Polynomial.semiring.{u1} R _inst_1)))) (Semiring.toModule.{u1} R _inst_1) (Polynomial.module.{u1, u1} R _inst_1 R _inst_1 (Semiring.toModule.{u1} R _inst_1))) R (fun (_x : R) => (fun (x._@.Mathlib.Algebra.Module.LinearMap._hyg.6190 : R) => Polynomial.{u1} R _inst_1) _x) (LinearMap.instFunLikeLinearMap.{u1, u1, u1, u1} R R R (Polynomial.{u1} R _inst_1) _inst_1 _inst_1 (NonUnitalNonAssocSemiring.toAddCommMonoid.{u1} R (NonAssocSemiring.toNonUnitalNonAssocSemiring.{u1} R (Semiring.toNonAssocSemiring.{u1} R _inst_1))) (NonUnitalNonAssocSemiring.toAddCommMonoid.{u1} (Polynomial.{u1} R _inst_1) (NonAssocSemiring.toNonUnitalNonAssocSemiring.{u1} (Polynomial.{u1} R _inst_1) (Semiring.toNonAssocSemiring.{u1} (Polynomial.{u1} R _inst_1) (Polynomial.semiring.{u1} R _inst_1)))) (Semiring.toModule.{u1} R _inst_1) (Polynomial.module.{u1, u1} R _inst_1 R _inst_1 (Semiring.toModule.{u1} R _inst_1)) (RingHom.id.{u1} R (Semiring.toNonAssocSemiring.{u1} R _inst_1))) (Polynomial.monomial.{u1} R _inst_1 i) (OfNat.ofNat.{u1} R 1 (One.toOfNat1.{u1} R (Semiring.toOne.{u1} R _inst_1)))) (FunLike.coe.{succ u1, succ u1, succ u1} (LinearMap.{u1, u1, u1, u1} R R _inst_1 _inst_1 (RingHom.id.{u1} R (Semiring.toNonAssocSemiring.{u1} R _inst_1)) R (Polynomial.{u1} R _inst_1) (NonUnitalNonAssocSemiring.toAddCommMonoid.{u1} R (NonAssocSemiring.toNonUnitalNonAssocSemiring.{u1} R (Semiring.toNonAssocSemiring.{u1} R _inst_1))) (NonUnitalNonAssocSemiring.toAddCommMonoid.{u1} (Polynomial.{u1} R _inst_1) (NonAssocSemiring.toNonUnitalNonAssocSemiring.{u1} (Polynomial.{u1} R _inst_1) (Semiring.toNonAssocSemiring.{u1} (Polynomial.{u1} R _inst_1) (Polynomial.semiring.{u1} R _inst_1)))) (Semiring.toModule.{u1} R _inst_1) (Polynomial.module.{u1, u1} R _inst_1 R _inst_1 (Semiring.toModule.{u1} R _inst_1))) R (fun (_x : R) => (fun (x._@.Mathlib.Algebra.Module.LinearMap._hyg.6190 : R) => Polynomial.{u1} R _inst_1) _x) (LinearMap.instFunLikeLinearMap.{u1, u1, u1, u1} R R R (Polynomial.{u1} R _inst_1) _inst_1 _inst_1 (NonUnitalNonAssocSemiring.toAddCommMonoid.{u1} R (NonAssocSemiring.toNonUnitalNonAssocSemiring.{u1} R (Semiring.toNonAssocSemiring.{u1} R _inst_1))) (NonUnitalNonAssocSemiring.toAddCommMonoid.{u1} (Polynomial.{u1} R _inst_1) (NonAssocSemiring.toNonUnitalNonAssocSemiring.{u1} (Polynomial.{u1} R _inst_1) (Semiring.toNonAssocSemiring.{u1} (Polynomial.{u1} R _inst_1) (Polynomial.semiring.{u1} R _inst_1)))) (Semiring.toModule.{u1} R _inst_1) (Polynomial.module.{u1, u1} R _inst_1 R _inst_1 (Semiring.toModule.{u1} R _inst_1)) (RingHom.id.{u1} R (Semiring.toNonAssocSemiring.{u1} R _inst_1))) (Polynomial.monomial.{u1} R _inst_1 j) (OfNat.ofNat.{u1} R 1 (One.toOfNat1.{u1} R (Semiring.toOne.{u1} R _inst_1))))) (Eq.{1} Nat i j)
 Case conversion may be inaccurate. Consider using '#align polynomial.monomial_one_eq_iff Polynomial.monomial_one_eq_iffₓ'. -/
 theorem monomial_one_eq_iff [Nontrivial R] {i j : ℕ} :
     (monomial i 1 : R[X]) = monomial j 1 ↔ i = j :=
@@ -49,7 +49,7 @@ instance [Nontrivial R] : Infinite R[X] :=
 lean 3 declaration is
   forall {R : Type.{u1}} [_inst_1 : Semiring.{u1} R] {f : Polynomial.{u1} R _inst_1}, Iff (LE.le.{0} Nat Nat.hasLe (Finset.card.{0} Nat (Polynomial.support.{u1} R _inst_1 f)) (OfNat.ofNat.{0} Nat 1 (OfNat.mk.{0} Nat 1 (One.one.{0} Nat Nat.hasOne)))) (Exists.{1} Nat (fun (n : Nat) => Exists.{succ u1} R (fun (a : R) => Eq.{succ u1} (Polynomial.{u1} R _inst_1) f (coeFn.{succ u1, succ u1} (LinearMap.{u1, u1, u1, u1} R R _inst_1 _inst_1 (RingHom.id.{u1} R (Semiring.toNonAssocSemiring.{u1} R _inst_1)) R (Polynomial.{u1} R _inst_1) (NonUnitalNonAssocSemiring.toAddCommMonoid.{u1} R (NonAssocSemiring.toNonUnitalNonAssocSemiring.{u1} R (Semiring.toNonAssocSemiring.{u1} R _inst_1))) (NonUnitalNonAssocSemiring.toAddCommMonoid.{u1} (Polynomial.{u1} R _inst_1) (NonAssocSemiring.toNonUnitalNonAssocSemiring.{u1} (Polynomial.{u1} R _inst_1) (Semiring.toNonAssocSemiring.{u1} (Polynomial.{u1} R _inst_1) (Polynomial.semiring.{u1} R _inst_1)))) (Semiring.toModule.{u1} R _inst_1) (Polynomial.module.{u1, u1} R _inst_1 R _inst_1 (Semiring.toModule.{u1} R _inst_1))) (fun (_x : LinearMap.{u1, u1, u1, u1} R R _inst_1 _inst_1 (RingHom.id.{u1} R (Semiring.toNonAssocSemiring.{u1} R _inst_1)) R (Polynomial.{u1} R _inst_1) (NonUnitalNonAssocSemiring.toAddCommMonoid.{u1} R (NonAssocSemiring.toNonUnitalNonAssocSemiring.{u1} R (Semiring.toNonAssocSemiring.{u1} R _inst_1))) (NonUnitalNonAssocSemiring.toAddCommMonoid.{u1} (Polynomial.{u1} R _inst_1) (NonAssocSemiring.toNonUnitalNonAssocSemiring.{u1} (Polynomial.{u1} R _inst_1) (Semiring.toNonAssocSemiring.{u1} (Polynomial.{u1} R _inst_1) (Polynomial.semiring.{u1} R _inst_1)))) (Semiring.toModule.{u1} R _inst_1) (Polynomial.module.{u1, u1} R _inst_1 R _inst_1 (Semiring.toModule.{u1} R _inst_1))) => R -> (Polynomial.{u1} R _inst_1)) (LinearMap.hasCoeToFun.{u1, u1, u1, u1} R R R (Polynomial.{u1} R _inst_1) _inst_1 _inst_1 (NonUnitalNonAssocSemiring.toAddCommMonoid.{u1} R (NonAssocSemiring.toNonUnitalNonAssocSemiring.{u1} R (Semiring.toNonAssocSemiring.{u1} R _inst_1))) (NonUnitalNonAssocSemiring.toAddCommMonoid.{u1} (Polynomial.{u1} R _inst_1) (NonAssocSemiring.toNonUnitalNonAssocSemiring.{u1} (Polynomial.{u1} R _inst_1) (Semiring.toNonAssocSemiring.{u1} (Polynomial.{u1} R _inst_1) (Polynomial.semiring.{u1} R _inst_1)))) (Semiring.toModule.{u1} R _inst_1) (Polynomial.module.{u1, u1} R _inst_1 R _inst_1 (Semiring.toModule.{u1} R _inst_1)) (RingHom.id.{u1} R (Semiring.toNonAssocSemiring.{u1} R _inst_1))) (Polynomial.monomial.{u1} R _inst_1 n) a))))
 but is expected to have type
-  forall {R : Type.{u1}} [_inst_1 : Semiring.{u1} R] {f : Polynomial.{u1} R _inst_1}, Iff (LE.le.{0} Nat instLENat (Finset.card.{0} Nat (Polynomial.support.{u1} R _inst_1 f)) (OfNat.ofNat.{0} Nat 1 (instOfNatNat 1))) (Exists.{1} Nat (fun (n : Nat) => Exists.{succ u1} R (fun (a : R) => Eq.{succ u1} (Polynomial.{u1} R _inst_1) f (FunLike.coe.{succ u1, succ u1, succ u1} (LinearMap.{u1, u1, u1, u1} R R _inst_1 _inst_1 (RingHom.id.{u1} R (Semiring.toNonAssocSemiring.{u1} R _inst_1)) R (Polynomial.{u1} R _inst_1) (NonUnitalNonAssocSemiring.toAddCommMonoid.{u1} R (NonAssocSemiring.toNonUnitalNonAssocSemiring.{u1} R (Semiring.toNonAssocSemiring.{u1} R _inst_1))) (NonUnitalNonAssocSemiring.toAddCommMonoid.{u1} (Polynomial.{u1} R _inst_1) (NonAssocSemiring.toNonUnitalNonAssocSemiring.{u1} (Polynomial.{u1} R _inst_1) (Semiring.toNonAssocSemiring.{u1} (Polynomial.{u1} R _inst_1) (Polynomial.semiring.{u1} R _inst_1)))) (Semiring.toModule.{u1} R _inst_1) (Polynomial.module.{u1, u1} R _inst_1 R _inst_1 (Semiring.toModule.{u1} R _inst_1))) R (fun (_x : R) => (fun (x._@.Mathlib.Algebra.Module.LinearMap._hyg.6178 : R) => Polynomial.{u1} R _inst_1) _x) (LinearMap.instFunLikeLinearMap.{u1, u1, u1, u1} R R R (Polynomial.{u1} R _inst_1) _inst_1 _inst_1 (NonUnitalNonAssocSemiring.toAddCommMonoid.{u1} R (NonAssocSemiring.toNonUnitalNonAssocSemiring.{u1} R (Semiring.toNonAssocSemiring.{u1} R _inst_1))) (NonUnitalNonAssocSemiring.toAddCommMonoid.{u1} (Polynomial.{u1} R _inst_1) (NonAssocSemiring.toNonUnitalNonAssocSemiring.{u1} (Polynomial.{u1} R _inst_1) (Semiring.toNonAssocSemiring.{u1} (Polynomial.{u1} R _inst_1) (Polynomial.semiring.{u1} R _inst_1)))) (Semiring.toModule.{u1} R _inst_1) (Polynomial.module.{u1, u1} R _inst_1 R _inst_1 (Semiring.toModule.{u1} R _inst_1)) (RingHom.id.{u1} R (Semiring.toNonAssocSemiring.{u1} R _inst_1))) (Polynomial.monomial.{u1} R _inst_1 n) a))))
+  forall {R : Type.{u1}} [_inst_1 : Semiring.{u1} R] {f : Polynomial.{u1} R _inst_1}, Iff (LE.le.{0} Nat instLENat (Finset.card.{0} Nat (Polynomial.support.{u1} R _inst_1 f)) (OfNat.ofNat.{0} Nat 1 (instOfNatNat 1))) (Exists.{1} Nat (fun (n : Nat) => Exists.{succ u1} R (fun (a : R) => Eq.{succ u1} (Polynomial.{u1} R _inst_1) f (FunLike.coe.{succ u1, succ u1, succ u1} (LinearMap.{u1, u1, u1, u1} R R _inst_1 _inst_1 (RingHom.id.{u1} R (Semiring.toNonAssocSemiring.{u1} R _inst_1)) R (Polynomial.{u1} R _inst_1) (NonUnitalNonAssocSemiring.toAddCommMonoid.{u1} R (NonAssocSemiring.toNonUnitalNonAssocSemiring.{u1} R (Semiring.toNonAssocSemiring.{u1} R _inst_1))) (NonUnitalNonAssocSemiring.toAddCommMonoid.{u1} (Polynomial.{u1} R _inst_1) (NonAssocSemiring.toNonUnitalNonAssocSemiring.{u1} (Polynomial.{u1} R _inst_1) (Semiring.toNonAssocSemiring.{u1} (Polynomial.{u1} R _inst_1) (Polynomial.semiring.{u1} R _inst_1)))) (Semiring.toModule.{u1} R _inst_1) (Polynomial.module.{u1, u1} R _inst_1 R _inst_1 (Semiring.toModule.{u1} R _inst_1))) R (fun (_x : R) => (fun (x._@.Mathlib.Algebra.Module.LinearMap._hyg.6190 : R) => Polynomial.{u1} R _inst_1) _x) (LinearMap.instFunLikeLinearMap.{u1, u1, u1, u1} R R R (Polynomial.{u1} R _inst_1) _inst_1 _inst_1 (NonUnitalNonAssocSemiring.toAddCommMonoid.{u1} R (NonAssocSemiring.toNonUnitalNonAssocSemiring.{u1} R (Semiring.toNonAssocSemiring.{u1} R _inst_1))) (NonUnitalNonAssocSemiring.toAddCommMonoid.{u1} (Polynomial.{u1} R _inst_1) (NonAssocSemiring.toNonUnitalNonAssocSemiring.{u1} (Polynomial.{u1} R _inst_1) (Semiring.toNonAssocSemiring.{u1} (Polynomial.{u1} R _inst_1) (Polynomial.semiring.{u1} R _inst_1)))) (Semiring.toModule.{u1} R _inst_1) (Polynomial.module.{u1, u1} R _inst_1 R _inst_1 (Semiring.toModule.{u1} R _inst_1)) (RingHom.id.{u1} R (Semiring.toNonAssocSemiring.{u1} R _inst_1))) (Polynomial.monomial.{u1} R _inst_1 n) a))))
 Case conversion may be inaccurate. Consider using '#align polynomial.card_support_le_one_iff_monomial Polynomial.card_support_le_one_iff_monomialₓ'. -/
 theorem card_support_le_one_iff_monomial {f : R[X]} :
     Finset.card f.support ≤ 1 ↔ ∃ n a, f = monomial n a :=
@@ -76,7 +76,7 @@ theorem card_support_le_one_iff_monomial {f : R[X]} :
 lean 3 declaration is
   forall {R : Type.{u1}} [_inst_1 : Semiring.{u1} R] {S : Type.{u2}} [_inst_2 : Semiring.{u2} S] {f : RingHom.{u1, u2} (Polynomial.{u1} R _inst_1) S (Semiring.toNonAssocSemiring.{u1} (Polynomial.{u1} R _inst_1) (Polynomial.semiring.{u1} R _inst_1)) (Semiring.toNonAssocSemiring.{u2} S _inst_2)} {g : RingHom.{u1, u2} (Polynomial.{u1} R _inst_1) S (Semiring.toNonAssocSemiring.{u1} (Polynomial.{u1} R _inst_1) (Polynomial.semiring.{u1} R _inst_1)) (Semiring.toNonAssocSemiring.{u2} S _inst_2)}, (forall (a : R), Eq.{succ u2} S (coeFn.{max (succ u1) (succ u2), max (succ u1) (succ u2)} (RingHom.{u1, u2} (Polynomial.{u1} R _inst_1) S (Semiring.toNonAssocSemiring.{u1} (Polynomial.{u1} R _inst_1) (Polynomial.semiring.{u1} R _inst_1)) (Semiring.toNonAssocSemiring.{u2} S _inst_2)) (fun (_x : RingHom.{u1, u2} (Polynomial.{u1} R _inst_1) S (Semiring.toNonAssocSemiring.{u1} (Polynomial.{u1} R _inst_1) (Polynomial.semiring.{u1} R _inst_1)) (Semiring.toNonAssocSemiring.{u2} S _inst_2)) => (Polynomial.{u1} R _inst_1) -> S) (RingHom.hasCoeToFun.{u1, u2} (Polynomial.{u1} R _inst_1) S (Semiring.toNonAssocSemiring.{u1} (Polynomial.{u1} R _inst_1) (Polynomial.semiring.{u1} R _inst_1)) (Semiring.toNonAssocSemiring.{u2} S _inst_2)) f (coeFn.{succ u1, succ u1} (RingHom.{u1, u1} R (Polynomial.{u1} R _inst_1) (Semiring.toNonAssocSemiring.{u1} R _inst_1) (Semiring.toNonAssocSemiring.{u1} (Polynomial.{u1} R _inst_1) (Polynomial.semiring.{u1} R _inst_1))) (fun (_x : RingHom.{u1, u1} R (Polynomial.{u1} R _inst_1) (Semiring.toNonAssocSemiring.{u1} R _inst_1) (Semiring.toNonAssocSemiring.{u1} (Polynomial.{u1} R _inst_1) (Polynomial.semiring.{u1} R _inst_1))) => R -> (Polynomial.{u1} R _inst_1)) (RingHom.hasCoeToFun.{u1, u1} R (Polynomial.{u1} R _inst_1) (Semiring.toNonAssocSemiring.{u1} R _inst_1) (Semiring.toNonAssocSemiring.{u1} (Polynomial.{u1} R _inst_1) (Polynomial.semiring.{u1} R _inst_1))) (Polynomial.C.{u1} R _inst_1) a)) (coeFn.{max (succ u1) (succ u2), max (succ u1) (succ u2)} (RingHom.{u1, u2} (Polynomial.{u1} R _inst_1) S (Semiring.toNonAssocSemiring.{u1} (Polynomial.{u1} R _inst_1) (Polynomial.semiring.{u1} R _inst_1)) (Semiring.toNonAssocSemiring.{u2} S _inst_2)) (fun (_x : RingHom.{u1, u2} (Polynomial.{u1} R _inst_1) S (Semiring.toNonAssocSemiring.{u1} (Polynomial.{u1} R _inst_1) (Polynomial.semiring.{u1} R _inst_1)) (Semiring.toNonAssocSemiring.{u2} S _inst_2)) => (Polynomial.{u1} R _inst_1) -> S) (RingHom.hasCoeToFun.{u1, u2} (Polynomial.{u1} R _inst_1) S (Semiring.toNonAssocSemiring.{u1} (Polynomial.{u1} R _inst_1) (Polynomial.semiring.{u1} R _inst_1)) (Semiring.toNonAssocSemiring.{u2} S _inst_2)) g (coeFn.{succ u1, succ u1} (RingHom.{u1, u1} R (Polynomial.{u1} R _inst_1) (Semiring.toNonAssocSemiring.{u1} R _inst_1) (Semiring.toNonAssocSemiring.{u1} (Polynomial.{u1} R _inst_1) (Polynomial.semiring.{u1} R _inst_1))) (fun (_x : RingHom.{u1, u1} R (Polynomial.{u1} R _inst_1) (Semiring.toNonAssocSemiring.{u1} R _inst_1) (Semiring.toNonAssocSemiring.{u1} (Polynomial.{u1} R _inst_1) (Polynomial.semiring.{u1} R _inst_1))) => R -> (Polynomial.{u1} R _inst_1)) (RingHom.hasCoeToFun.{u1, u1} R (Polynomial.{u1} R _inst_1) (Semiring.toNonAssocSemiring.{u1} R _inst_1) (Semiring.toNonAssocSemiring.{u1} (Polynomial.{u1} R _inst_1) (Polynomial.semiring.{u1} R _inst_1))) (Polynomial.C.{u1} R _inst_1) a))) -> (Eq.{succ u2} S (coeFn.{max (succ u1) (succ u2), max (succ u1) (succ u2)} (RingHom.{u1, u2} (Polynomial.{u1} R _inst_1) S (Semiring.toNonAssocSemiring.{u1} (Polynomial.{u1} R _inst_1) (Polynomial.semiring.{u1} R _inst_1)) (Semiring.toNonAssocSemiring.{u2} S _inst_2)) (fun (_x : RingHom.{u1, u2} (Polynomial.{u1} R _inst_1) S (Semiring.toNonAssocSemiring.{u1} (Polynomial.{u1} R _inst_1) (Polynomial.semiring.{u1} R _inst_1)) (Semiring.toNonAssocSemiring.{u2} S _inst_2)) => (Polynomial.{u1} R _inst_1) -> S) (RingHom.hasCoeToFun.{u1, u2} (Polynomial.{u1} R _inst_1) S (Semiring.toNonAssocSemiring.{u1} (Polynomial.{u1} R _inst_1) (Polynomial.semiring.{u1} R _inst_1)) (Semiring.toNonAssocSemiring.{u2} S _inst_2)) f (Polynomial.X.{u1} R _inst_1)) (coeFn.{max (succ u1) (succ u2), max (succ u1) (succ u2)} (RingHom.{u1, u2} (Polynomial.{u1} R _inst_1) S (Semiring.toNonAssocSemiring.{u1} (Polynomial.{u1} R _inst_1) (Polynomial.semiring.{u1} R _inst_1)) (Semiring.toNonAssocSemiring.{u2} S _inst_2)) (fun (_x : RingHom.{u1, u2} (Polynomial.{u1} R _inst_1) S (Semiring.toNonAssocSemiring.{u1} (Polynomial.{u1} R _inst_1) (Polynomial.semiring.{u1} R _inst_1)) (Semiring.toNonAssocSemiring.{u2} S _inst_2)) => (Polynomial.{u1} R _inst_1) -> S) (RingHom.hasCoeToFun.{u1, u2} (Polynomial.{u1} R _inst_1) S (Semiring.toNonAssocSemiring.{u1} (Polynomial.{u1} R _inst_1) (Polynomial.semiring.{u1} R _inst_1)) (Semiring.toNonAssocSemiring.{u2} S _inst_2)) g (Polynomial.X.{u1} R _inst_1))) -> (Eq.{max (succ u1) (succ u2)} (RingHom.{u1, u2} (Polynomial.{u1} R _inst_1) S (Semiring.toNonAssocSemiring.{u1} (Polynomial.{u1} R _inst_1) (Polynomial.semiring.{u1} R _inst_1)) (Semiring.toNonAssocSemiring.{u2} S _inst_2)) f g)
 but is expected to have type
-  forall {R : Type.{u2}} [_inst_1 : Semiring.{u2} R] {S : Type.{u1}} [_inst_2 : Semiring.{u1} S] {f : RingHom.{u2, u1} (Polynomial.{u2} R _inst_1) S (Semiring.toNonAssocSemiring.{u2} (Polynomial.{u2} R _inst_1) (Polynomial.semiring.{u2} R _inst_1)) (Semiring.toNonAssocSemiring.{u1} S _inst_2)} {g : RingHom.{u2, u1} (Polynomial.{u2} R _inst_1) S (Semiring.toNonAssocSemiring.{u2} (Polynomial.{u2} R _inst_1) (Polynomial.semiring.{u2} R _inst_1)) (Semiring.toNonAssocSemiring.{u1} S _inst_2)}, (forall (a : R), Eq.{succ u1} ((fun (x._@.Mathlib.Algebra.Hom.Group._hyg.2372 : Polynomial.{u2} R _inst_1) => S) (FunLike.coe.{succ u2, succ u2, succ u2} (RingHom.{u2, u2} R (Polynomial.{u2} R _inst_1) (Semiring.toNonAssocSemiring.{u2} R _inst_1) (Semiring.toNonAssocSemiring.{u2} (Polynomial.{u2} R _inst_1) (Polynomial.semiring.{u2} R _inst_1))) R (fun (a : R) => (fun (x._@.Mathlib.Algebra.Hom.Group._hyg.2372 : R) => Polynomial.{u2} R _inst_1) a) (MulHomClass.toFunLike.{u2, u2, u2} (RingHom.{u2, u2} R (Polynomial.{u2} R _inst_1) (Semiring.toNonAssocSemiring.{u2} R _inst_1) (Semiring.toNonAssocSemiring.{u2} (Polynomial.{u2} R _inst_1) (Polynomial.semiring.{u2} R _inst_1))) R (Polynomial.{u2} R _inst_1) (NonUnitalNonAssocSemiring.toMul.{u2} R (NonAssocSemiring.toNonUnitalNonAssocSemiring.{u2} R (Semiring.toNonAssocSemiring.{u2} R _inst_1))) (NonUnitalNonAssocSemiring.toMul.{u2} (Polynomial.{u2} R _inst_1) (NonAssocSemiring.toNonUnitalNonAssocSemiring.{u2} (Polynomial.{u2} R _inst_1) (Semiring.toNonAssocSemiring.{u2} (Polynomial.{u2} R _inst_1) (Polynomial.semiring.{u2} R _inst_1)))) (NonUnitalRingHomClass.toMulHomClass.{u2, u2, u2} (RingHom.{u2, u2} R (Polynomial.{u2} R _inst_1) (Semiring.toNonAssocSemiring.{u2} R _inst_1) (Semiring.toNonAssocSemiring.{u2} (Polynomial.{u2} R _inst_1) (Polynomial.semiring.{u2} R _inst_1))) R (Polynomial.{u2} R _inst_1) (NonAssocSemiring.toNonUnitalNonAssocSemiring.{u2} R (Semiring.toNonAssocSemiring.{u2} R _inst_1)) (NonAssocSemiring.toNonUnitalNonAssocSemiring.{u2} (Polynomial.{u2} R _inst_1) (Semiring.toNonAssocSemiring.{u2} (Polynomial.{u2} R _inst_1) (Polynomial.semiring.{u2} R _inst_1))) (RingHomClass.toNonUnitalRingHomClass.{u2, u2, u2} (RingHom.{u2, u2} R (Polynomial.{u2} R _inst_1) (Semiring.toNonAssocSemiring.{u2} R _inst_1) (Semiring.toNonAssocSemiring.{u2} (Polynomial.{u2} R _inst_1) (Polynomial.semiring.{u2} R _inst_1))) R (Polynomial.{u2} R _inst_1) (Semiring.toNonAssocSemiring.{u2} R _inst_1) (Semiring.toNonAssocSemiring.{u2} (Polynomial.{u2} R _inst_1) (Polynomial.semiring.{u2} R _inst_1)) (RingHom.instRingHomClassRingHom.{u2, u2} R (Polynomial.{u2} R _inst_1) (Semiring.toNonAssocSemiring.{u2} R _inst_1) (Semiring.toNonAssocSemiring.{u2} (Polynomial.{u2} R _inst_1) (Polynomial.semiring.{u2} R _inst_1)))))) (Polynomial.C.{u2} R _inst_1) a)) (FunLike.coe.{max (succ u2) (succ u1), succ u2, succ u1} (RingHom.{u2, u1} (Polynomial.{u2} R _inst_1) S (Semiring.toNonAssocSemiring.{u2} 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_inst_2)) f g)
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_inst_2)) f g)
 Case conversion may be inaccurate. Consider using '#align polynomial.ring_hom_ext Polynomial.ringHom_extₓ'. -/
 theorem ringHom_ext {S} [Semiring S] {f g : R[X] →+* S} (h₁ : ∀ a, f (C a) = g (C a))
     (h₂ : f X = g X) : f = g :=
@@ -106,7 +106,7 @@ theorem ringHom_ext {S} [Semiring S] {f g : R[X] →+* S} (h₁ : ∀ a, f (C a)
 lean 3 declaration is
   forall {R : Type.{u1}} [_inst_1 : Semiring.{u1} R] {S : Type.{u2}} [_inst_2 : Semiring.{u2} S] {f : RingHom.{u1, u2} (Polynomial.{u1} R _inst_1) S (Semiring.toNonAssocSemiring.{u1} (Polynomial.{u1} R _inst_1) (Polynomial.semiring.{u1} R _inst_1)) (Semiring.toNonAssocSemiring.{u2} S _inst_2)} {g : RingHom.{u1, u2} (Polynomial.{u1} R _inst_1) S (Semiring.toNonAssocSemiring.{u1} (Polynomial.{u1} R _inst_1) (Polynomial.semiring.{u1} R _inst_1)) (Semiring.toNonAssocSemiring.{u2} S _inst_2)}, (Eq.{max (succ u1) (succ u2)} (RingHom.{u1, u2} R S (Semiring.toNonAssocSemiring.{u1} R _inst_1) (Semiring.toNonAssocSemiring.{u2} S _inst_2)) (RingHom.comp.{u1, u1, u2} R (Polynomial.{u1} R _inst_1) S (Semiring.toNonAssocSemiring.{u1} R _inst_1) (Semiring.toNonAssocSemiring.{u1} (Polynomial.{u1} R _inst_1) (Polynomial.semiring.{u1} R _inst_1)) (Semiring.toNonAssocSemiring.{u2} S _inst_2) f (Polynomial.C.{u1} R _inst_1)) (RingHom.comp.{u1, u1, u2} R (Polynomial.{u1} R _inst_1) S (Semiring.toNonAssocSemiring.{u1} R _inst_1) (Semiring.toNonAssocSemiring.{u1} (Polynomial.{u1} R _inst_1) (Polynomial.semiring.{u1} R _inst_1)) (Semiring.toNonAssocSemiring.{u2} S _inst_2) g (Polynomial.C.{u1} R _inst_1))) -> (Eq.{succ u2} S (coeFn.{max (succ u1) (succ u2), max (succ u1) (succ u2)} (RingHom.{u1, u2} (Polynomial.{u1} R _inst_1) S (Semiring.toNonAssocSemiring.{u1} (Polynomial.{u1} R _inst_1) (Polynomial.semiring.{u1} R _inst_1)) (Semiring.toNonAssocSemiring.{u2} S _inst_2)) (fun (_x : RingHom.{u1, u2} (Polynomial.{u1} R _inst_1) S (Semiring.toNonAssocSemiring.{u1} (Polynomial.{u1} R _inst_1) (Polynomial.semiring.{u1} R _inst_1)) (Semiring.toNonAssocSemiring.{u2} S _inst_2)) => (Polynomial.{u1} R _inst_1) -> S) (RingHom.hasCoeToFun.{u1, u2} (Polynomial.{u1} R _inst_1) S (Semiring.toNonAssocSemiring.{u1} (Polynomial.{u1} R _inst_1) (Polynomial.semiring.{u1} R _inst_1)) (Semiring.toNonAssocSemiring.{u2} S _inst_2)) f (Polynomial.X.{u1} R _inst_1)) (coeFn.{max (succ u1) (succ u2), max (succ u1) (succ u2)} (RingHom.{u1, u2} (Polynomial.{u1} R _inst_1) S (Semiring.toNonAssocSemiring.{u1} (Polynomial.{u1} R _inst_1) (Polynomial.semiring.{u1} R _inst_1)) (Semiring.toNonAssocSemiring.{u2} S _inst_2)) (fun (_x : RingHom.{u1, u2} (Polynomial.{u1} R _inst_1) S (Semiring.toNonAssocSemiring.{u1} (Polynomial.{u1} R _inst_1) (Polynomial.semiring.{u1} R _inst_1)) (Semiring.toNonAssocSemiring.{u2} S _inst_2)) => (Polynomial.{u1} R _inst_1) -> S) (RingHom.hasCoeToFun.{u1, u2} (Polynomial.{u1} R _inst_1) S (Semiring.toNonAssocSemiring.{u1} (Polynomial.{u1} R _inst_1) (Polynomial.semiring.{u1} R _inst_1)) (Semiring.toNonAssocSemiring.{u2} S _inst_2)) g (Polynomial.X.{u1} R _inst_1))) -> (Eq.{max (succ u1) (succ u2)} (RingHom.{u1, u2} (Polynomial.{u1} R _inst_1) S (Semiring.toNonAssocSemiring.{u1} (Polynomial.{u1} R _inst_1) (Polynomial.semiring.{u1} R _inst_1)) (Semiring.toNonAssocSemiring.{u2} S _inst_2)) f g)
 but is expected to have type
-  forall {R : Type.{u2}} [_inst_1 : Semiring.{u2} R] {S : Type.{u1}} [_inst_2 : Semiring.{u1} S] {f : RingHom.{u2, u1} (Polynomial.{u2} R _inst_1) S (Semiring.toNonAssocSemiring.{u2} (Polynomial.{u2} R _inst_1) (Polynomial.semiring.{u2} R _inst_1)) (Semiring.toNonAssocSemiring.{u1} S _inst_2)} {g : RingHom.{u2, u1} (Polynomial.{u2} R _inst_1) S (Semiring.toNonAssocSemiring.{u2} (Polynomial.{u2} R _inst_1) (Polynomial.semiring.{u2} R _inst_1)) (Semiring.toNonAssocSemiring.{u1} S _inst_2)}, (Eq.{max (succ u2) (succ u1)} (RingHom.{u2, u1} R S (Semiring.toNonAssocSemiring.{u2} R _inst_1) (Semiring.toNonAssocSemiring.{u1} S _inst_2)) (RingHom.comp.{u2, u2, u1} R (Polynomial.{u2} R _inst_1) S (Semiring.toNonAssocSemiring.{u2} R _inst_1) (Semiring.toNonAssocSemiring.{u2} (Polynomial.{u2} R _inst_1) (Polynomial.semiring.{u2} R _inst_1)) (Semiring.toNonAssocSemiring.{u1} S _inst_2) f (Polynomial.C.{u2} R _inst_1)) (RingHom.comp.{u2, u2, u1} R (Polynomial.{u2} R _inst_1) S (Semiring.toNonAssocSemiring.{u2} R _inst_1) (Semiring.toNonAssocSemiring.{u2} (Polynomial.{u2} R _inst_1) (Polynomial.semiring.{u2} R _inst_1)) (Semiring.toNonAssocSemiring.{u1} S _inst_2) g (Polynomial.C.{u2} R _inst_1))) -> (Eq.{succ u1} ((fun (x._@.Mathlib.Algebra.Hom.Group._hyg.2372 : Polynomial.{u2} R _inst_1) => S) (Polynomial.X.{u2} R _inst_1)) (FunLike.coe.{max (succ u2) (succ u1), succ u2, succ u1} (RingHom.{u2, u1} (Polynomial.{u2} R _inst_1) S (Semiring.toNonAssocSemiring.{u2} (Polynomial.{u2} R _inst_1) (Polynomial.semiring.{u2} R _inst_1)) (Semiring.toNonAssocSemiring.{u1} S _inst_2)) (Polynomial.{u2} R _inst_1) (fun (_x : Polynomial.{u2} R _inst_1) => (fun (x._@.Mathlib.Algebra.Hom.Group._hyg.2372 : Polynomial.{u2} R _inst_1) => S) _x) (MulHomClass.toFunLike.{max u2 u1, u2, u1} (RingHom.{u2, u1} (Polynomial.{u2} R _inst_1) S (Semiring.toNonAssocSemiring.{u2} (Polynomial.{u2} R _inst_1) (Polynomial.semiring.{u2} R _inst_1)) (Semiring.toNonAssocSemiring.{u1} S _inst_2)) (Polynomial.{u2} R _inst_1) S (NonUnitalNonAssocSemiring.toMul.{u2} (Polynomial.{u2} R _inst_1) (NonAssocSemiring.toNonUnitalNonAssocSemiring.{u2} (Polynomial.{u2} R _inst_1) (Semiring.toNonAssocSemiring.{u2} (Polynomial.{u2} R _inst_1) (Polynomial.semiring.{u2} R _inst_1)))) (NonUnitalNonAssocSemiring.toMul.{u1} S (NonAssocSemiring.toNonUnitalNonAssocSemiring.{u1} S (Semiring.toNonAssocSemiring.{u1} S _inst_2))) (NonUnitalRingHomClass.toMulHomClass.{max u2 u1, u2, u1} (RingHom.{u2, u1} (Polynomial.{u2} R _inst_1) S (Semiring.toNonAssocSemiring.{u2} (Polynomial.{u2} R _inst_1) (Polynomial.semiring.{u2} R _inst_1)) (Semiring.toNonAssocSemiring.{u1} S _inst_2)) (Polynomial.{u2} R _inst_1) S (NonAssocSemiring.toNonUnitalNonAssocSemiring.{u2} (Polynomial.{u2} R _inst_1) (Semiring.toNonAssocSemiring.{u2} (Polynomial.{u2} R _inst_1) (Polynomial.semiring.{u2} R _inst_1))) (NonAssocSemiring.toNonUnitalNonAssocSemiring.{u1} S (Semiring.toNonAssocSemiring.{u1} S _inst_2)) (RingHomClass.toNonUnitalRingHomClass.{max u2 u1, u2, u1} (RingHom.{u2, u1} (Polynomial.{u2} R _inst_1) S (Semiring.toNonAssocSemiring.{u2} (Polynomial.{u2} R _inst_1) (Polynomial.semiring.{u2} R _inst_1)) (Semiring.toNonAssocSemiring.{u1} S _inst_2)) (Polynomial.{u2} R _inst_1) S (Semiring.toNonAssocSemiring.{u2} (Polynomial.{u2} R _inst_1) (Polynomial.semiring.{u2} R _inst_1)) (Semiring.toNonAssocSemiring.{u1} S _inst_2) (RingHom.instRingHomClassRingHom.{u2, u1} (Polynomial.{u2} R _inst_1) S (Semiring.toNonAssocSemiring.{u2} (Polynomial.{u2} R _inst_1) (Polynomial.semiring.{u2} R _inst_1)) (Semiring.toNonAssocSemiring.{u1} S _inst_2))))) f (Polynomial.X.{u2} R _inst_1)) (FunLike.coe.{max (succ u2) (succ u1), succ u2, succ u1} (RingHom.{u2, u1} (Polynomial.{u2} R _inst_1) S (Semiring.toNonAssocSemiring.{u2} (Polynomial.{u2} R _inst_1) (Polynomial.semiring.{u2} R _inst_1)) (Semiring.toNonAssocSemiring.{u1} S _inst_2)) (Polynomial.{u2} R _inst_1) (fun (_x : Polynomial.{u2} R _inst_1) => (fun (x._@.Mathlib.Algebra.Hom.Group._hyg.2372 : Polynomial.{u2} R _inst_1) => S) _x) (MulHomClass.toFunLike.{max u2 u1, u2, u1} (RingHom.{u2, u1} (Polynomial.{u2} R _inst_1) S (Semiring.toNonAssocSemiring.{u2} (Polynomial.{u2} R _inst_1) (Polynomial.semiring.{u2} R _inst_1)) (Semiring.toNonAssocSemiring.{u1} S _inst_2)) (Polynomial.{u2} R _inst_1) S (NonUnitalNonAssocSemiring.toMul.{u2} (Polynomial.{u2} R _inst_1) (NonAssocSemiring.toNonUnitalNonAssocSemiring.{u2} (Polynomial.{u2} R _inst_1) (Semiring.toNonAssocSemiring.{u2} (Polynomial.{u2} R _inst_1) (Polynomial.semiring.{u2} R _inst_1)))) (NonUnitalNonAssocSemiring.toMul.{u1} S (NonAssocSemiring.toNonUnitalNonAssocSemiring.{u1} S (Semiring.toNonAssocSemiring.{u1} S _inst_2))) (NonUnitalRingHomClass.toMulHomClass.{max u2 u1, u2, u1} (RingHom.{u2, u1} (Polynomial.{u2} R _inst_1) S (Semiring.toNonAssocSemiring.{u2} (Polynomial.{u2} R _inst_1) (Polynomial.semiring.{u2} R _inst_1)) (Semiring.toNonAssocSemiring.{u1} S _inst_2)) (Polynomial.{u2} R _inst_1) S (NonAssocSemiring.toNonUnitalNonAssocSemiring.{u2} (Polynomial.{u2} R _inst_1) (Semiring.toNonAssocSemiring.{u2} (Polynomial.{u2} R _inst_1) (Polynomial.semiring.{u2} R _inst_1))) (NonAssocSemiring.toNonUnitalNonAssocSemiring.{u1} S (Semiring.toNonAssocSemiring.{u1} S _inst_2)) (RingHomClass.toNonUnitalRingHomClass.{max u2 u1, u2, u1} (RingHom.{u2, u1} (Polynomial.{u2} R _inst_1) S (Semiring.toNonAssocSemiring.{u2} (Polynomial.{u2} R _inst_1) (Polynomial.semiring.{u2} R _inst_1)) (Semiring.toNonAssocSemiring.{u1} S _inst_2)) (Polynomial.{u2} R _inst_1) S (Semiring.toNonAssocSemiring.{u2} (Polynomial.{u2} R _inst_1) (Polynomial.semiring.{u2} R _inst_1)) (Semiring.toNonAssocSemiring.{u1} S _inst_2) (RingHom.instRingHomClassRingHom.{u2, u1} (Polynomial.{u2} R _inst_1) S (Semiring.toNonAssocSemiring.{u2} (Polynomial.{u2} R _inst_1) (Polynomial.semiring.{u2} R _inst_1)) (Semiring.toNonAssocSemiring.{u1} S _inst_2))))) g (Polynomial.X.{u2} R _inst_1))) -> (Eq.{max (succ u2) (succ u1)} (RingHom.{u2, u1} (Polynomial.{u2} R _inst_1) S (Semiring.toNonAssocSemiring.{u2} (Polynomial.{u2} R _inst_1) (Polynomial.semiring.{u2} R _inst_1)) (Semiring.toNonAssocSemiring.{u1} S _inst_2)) f g)
+  forall {R : Type.{u2}} [_inst_1 : Semiring.{u2} R] {S : Type.{u1}} [_inst_2 : Semiring.{u1} S] {f : RingHom.{u2, u1} (Polynomial.{u2} R _inst_1) S (Semiring.toNonAssocSemiring.{u2} (Polynomial.{u2} R _inst_1) (Polynomial.semiring.{u2} R _inst_1)) (Semiring.toNonAssocSemiring.{u1} S _inst_2)} {g : RingHom.{u2, u1} (Polynomial.{u2} R _inst_1) S (Semiring.toNonAssocSemiring.{u2} (Polynomial.{u2} R _inst_1) (Polynomial.semiring.{u2} R _inst_1)) (Semiring.toNonAssocSemiring.{u1} S _inst_2)}, (Eq.{max (succ u2) (succ u1)} (RingHom.{u2, u1} R S (Semiring.toNonAssocSemiring.{u2} R _inst_1) (Semiring.toNonAssocSemiring.{u1} S _inst_2)) (RingHom.comp.{u2, u2, u1} R (Polynomial.{u2} R _inst_1) S (Semiring.toNonAssocSemiring.{u2} R _inst_1) (Semiring.toNonAssocSemiring.{u2} (Polynomial.{u2} R _inst_1) (Polynomial.semiring.{u2} R _inst_1)) (Semiring.toNonAssocSemiring.{u1} S _inst_2) f (Polynomial.C.{u2} R _inst_1)) (RingHom.comp.{u2, u2, u1} R (Polynomial.{u2} R _inst_1) S (Semiring.toNonAssocSemiring.{u2} R _inst_1) (Semiring.toNonAssocSemiring.{u2} (Polynomial.{u2} R _inst_1) (Polynomial.semiring.{u2} R _inst_1)) (Semiring.toNonAssocSemiring.{u1} S _inst_2) g (Polynomial.C.{u2} R _inst_1))) -> (Eq.{succ u1} ((fun (x._@.Mathlib.Algebra.Hom.Group._hyg.2391 : Polynomial.{u2} R _inst_1) => S) (Polynomial.X.{u2} R _inst_1)) (FunLike.coe.{max (succ u2) (succ u1), succ u2, succ u1} (RingHom.{u2, u1} (Polynomial.{u2} R _inst_1) S (Semiring.toNonAssocSemiring.{u2} (Polynomial.{u2} R _inst_1) (Polynomial.semiring.{u2} R _inst_1)) (Semiring.toNonAssocSemiring.{u1} S _inst_2)) (Polynomial.{u2} R _inst_1) (fun (_x : Polynomial.{u2} R _inst_1) => (fun (x._@.Mathlib.Algebra.Hom.Group._hyg.2391 : Polynomial.{u2} R _inst_1) => S) _x) (MulHomClass.toFunLike.{max u2 u1, u2, u1} (RingHom.{u2, u1} (Polynomial.{u2} R _inst_1) S (Semiring.toNonAssocSemiring.{u2} (Polynomial.{u2} R _inst_1) (Polynomial.semiring.{u2} R _inst_1)) (Semiring.toNonAssocSemiring.{u1} S _inst_2)) (Polynomial.{u2} R _inst_1) S (NonUnitalNonAssocSemiring.toMul.{u2} (Polynomial.{u2} R _inst_1) (NonAssocSemiring.toNonUnitalNonAssocSemiring.{u2} (Polynomial.{u2} R _inst_1) (Semiring.toNonAssocSemiring.{u2} (Polynomial.{u2} R _inst_1) (Polynomial.semiring.{u2} R _inst_1)))) (NonUnitalNonAssocSemiring.toMul.{u1} S (NonAssocSemiring.toNonUnitalNonAssocSemiring.{u1} S (Semiring.toNonAssocSemiring.{u1} S _inst_2))) (NonUnitalRingHomClass.toMulHomClass.{max u2 u1, u2, u1} (RingHom.{u2, u1} (Polynomial.{u2} R _inst_1) S (Semiring.toNonAssocSemiring.{u2} (Polynomial.{u2} R _inst_1) (Polynomial.semiring.{u2} R _inst_1)) (Semiring.toNonAssocSemiring.{u1} S _inst_2)) (Polynomial.{u2} R _inst_1) S (NonAssocSemiring.toNonUnitalNonAssocSemiring.{u2} (Polynomial.{u2} R _inst_1) (Semiring.toNonAssocSemiring.{u2} (Polynomial.{u2} R _inst_1) (Polynomial.semiring.{u2} R _inst_1))) (NonAssocSemiring.toNonUnitalNonAssocSemiring.{u1} S (Semiring.toNonAssocSemiring.{u1} S _inst_2)) (RingHomClass.toNonUnitalRingHomClass.{max u2 u1, u2, u1} (RingHom.{u2, u1} (Polynomial.{u2} R _inst_1) S (Semiring.toNonAssocSemiring.{u2} (Polynomial.{u2} R _inst_1) (Polynomial.semiring.{u2} R _inst_1)) (Semiring.toNonAssocSemiring.{u1} S _inst_2)) (Polynomial.{u2} R _inst_1) S (Semiring.toNonAssocSemiring.{u2} (Polynomial.{u2} R _inst_1) (Polynomial.semiring.{u2} R _inst_1)) (Semiring.toNonAssocSemiring.{u1} S _inst_2) (RingHom.instRingHomClassRingHom.{u2, u1} (Polynomial.{u2} R _inst_1) S (Semiring.toNonAssocSemiring.{u2} (Polynomial.{u2} R _inst_1) (Polynomial.semiring.{u2} R _inst_1)) (Semiring.toNonAssocSemiring.{u1} S _inst_2))))) f (Polynomial.X.{u2} R _inst_1)) (FunLike.coe.{max (succ u2) (succ u1), succ u2, succ u1} (RingHom.{u2, u1} (Polynomial.{u2} R _inst_1) S (Semiring.toNonAssocSemiring.{u2} (Polynomial.{u2} R _inst_1) (Polynomial.semiring.{u2} R _inst_1)) (Semiring.toNonAssocSemiring.{u1} S _inst_2)) (Polynomial.{u2} R _inst_1) (fun (_x : Polynomial.{u2} R _inst_1) => (fun (x._@.Mathlib.Algebra.Hom.Group._hyg.2391 : Polynomial.{u2} R _inst_1) => S) _x) (MulHomClass.toFunLike.{max u2 u1, u2, u1} (RingHom.{u2, u1} (Polynomial.{u2} R _inst_1) S (Semiring.toNonAssocSemiring.{u2} (Polynomial.{u2} R _inst_1) (Polynomial.semiring.{u2} R _inst_1)) (Semiring.toNonAssocSemiring.{u1} S _inst_2)) (Polynomial.{u2} R _inst_1) S (NonUnitalNonAssocSemiring.toMul.{u2} (Polynomial.{u2} R _inst_1) (NonAssocSemiring.toNonUnitalNonAssocSemiring.{u2} (Polynomial.{u2} R _inst_1) (Semiring.toNonAssocSemiring.{u2} (Polynomial.{u2} R _inst_1) (Polynomial.semiring.{u2} R _inst_1)))) (NonUnitalNonAssocSemiring.toMul.{u1} S (NonAssocSemiring.toNonUnitalNonAssocSemiring.{u1} S (Semiring.toNonAssocSemiring.{u1} S _inst_2))) (NonUnitalRingHomClass.toMulHomClass.{max u2 u1, u2, u1} (RingHom.{u2, u1} (Polynomial.{u2} R _inst_1) S (Semiring.toNonAssocSemiring.{u2} (Polynomial.{u2} R _inst_1) (Polynomial.semiring.{u2} R _inst_1)) (Semiring.toNonAssocSemiring.{u1} S _inst_2)) (Polynomial.{u2} R _inst_1) S (NonAssocSemiring.toNonUnitalNonAssocSemiring.{u2} (Polynomial.{u2} R _inst_1) (Semiring.toNonAssocSemiring.{u2} (Polynomial.{u2} R _inst_1) (Polynomial.semiring.{u2} R _inst_1))) (NonAssocSemiring.toNonUnitalNonAssocSemiring.{u1} S (Semiring.toNonAssocSemiring.{u1} S _inst_2)) (RingHomClass.toNonUnitalRingHomClass.{max u2 u1, u2, u1} (RingHom.{u2, u1} (Polynomial.{u2} R _inst_1) S (Semiring.toNonAssocSemiring.{u2} (Polynomial.{u2} R _inst_1) (Polynomial.semiring.{u2} R _inst_1)) (Semiring.toNonAssocSemiring.{u1} S _inst_2)) (Polynomial.{u2} R _inst_1) S (Semiring.toNonAssocSemiring.{u2} (Polynomial.{u2} R _inst_1) (Polynomial.semiring.{u2} R _inst_1)) (Semiring.toNonAssocSemiring.{u1} S _inst_2) (RingHom.instRingHomClassRingHom.{u2, u1} (Polynomial.{u2} R _inst_1) S (Semiring.toNonAssocSemiring.{u2} (Polynomial.{u2} R _inst_1) (Polynomial.semiring.{u2} R _inst_1)) (Semiring.toNonAssocSemiring.{u1} S _inst_2))))) g (Polynomial.X.{u2} R _inst_1))) -> (Eq.{max (succ u2) (succ u1)} (RingHom.{u2, u1} (Polynomial.{u2} R _inst_1) S (Semiring.toNonAssocSemiring.{u2} (Polynomial.{u2} R _inst_1) (Polynomial.semiring.{u2} R _inst_1)) (Semiring.toNonAssocSemiring.{u1} S _inst_2)) f g)
 Case conversion may be inaccurate. Consider using '#align polynomial.ring_hom_ext' Polynomial.ringHom_ext'ₓ'. -/
 @[ext]
 theorem ringHom_ext' {S} [Semiring S] {f g : R[X] →+* S} (h₁ : f.comp C = g.comp C)

220f71ba

bump to nightly-2023-03-08-18

mathlib commit https://github.com/leanprover-community/mathlib/commit/38f16f960f5006c6c0c2bac7b0aba5273188f4e5

10f15343

Diff

@@ -76,7 +76,7 @@ theorem card_support_le_one_iff_monomial {f : R[X]} :
 lean 3 declaration is
   forall {R : Type.{u1}} [_inst_1 : Semiring.{u1} R] {S : Type.{u2}} [_inst_2 : Semiring.{u2} S] {f : RingHom.{u1, u2} (Polynomial.{u1} R _inst_1) S (Semiring.toNonAssocSemiring.{u1} (Polynomial.{u1} R _inst_1) (Polynomial.semiring.{u1} R _inst_1)) (Semiring.toNonAssocSemiring.{u2} S _inst_2)} {g : RingHom.{u1, u2} (Polynomial.{u1} R _inst_1) S (Semiring.toNonAssocSemiring.{u1} (Polynomial.{u1} R _inst_1) (Polynomial.semiring.{u1} R _inst_1)) (Semiring.toNonAssocSemiring.{u2} S _inst_2)}, (forall (a : R), Eq.{succ u2} S (coeFn.{max (succ u1) (succ u2), max (succ u1) (succ u2)} (RingHom.{u1, u2} (Polynomial.{u1} R _inst_1) S (Semiring.toNonAssocSemiring.{u1} (Polynomial.{u1} R _inst_1) (Polynomial.semiring.{u1} R _inst_1)) (Semiring.toNonAssocSemiring.{u2} S _inst_2)) (fun (_x : RingHom.{u1, u2} (Polynomial.{u1} R _inst_1) S (Semiring.toNonAssocSemiring.{u1} (Polynomial.{u1} R _inst_1) (Polynomial.semiring.{u1} R _inst_1)) (Semiring.toNonAssocSemiring.{u2} S _inst_2)) => (Polynomial.{u1} R _inst_1) -> S) (RingHom.hasCoeToFun.{u1, u2} (Polynomial.{u1} R _inst_1) S (Semiring.toNonAssocSemiring.{u1} (Polynomial.{u1} R _inst_1) (Polynomial.semiring.{u1} R _inst_1)) (Semiring.toNonAssocSemiring.{u2} S _inst_2)) f (coeFn.{succ u1, succ u1} (RingHom.{u1, u1} R (Polynomial.{u1} R _inst_1) (Semiring.toNonAssocSemiring.{u1} R _inst_1) (Semiring.toNonAssocSemiring.{u1} (Polynomial.{u1} R _inst_1) (Polynomial.semiring.{u1} R _inst_1))) (fun (_x : RingHom.{u1, u1} R (Polynomial.{u1} R _inst_1) (Semiring.toNonAssocSemiring.{u1} R _inst_1) (Semiring.toNonAssocSemiring.{u1} (Polynomial.{u1} R _inst_1) (Polynomial.semiring.{u1} R _inst_1))) => R -> (Polynomial.{u1} R _inst_1)) (RingHom.hasCoeToFun.{u1, u1} R (Polynomial.{u1} R _inst_1) (Semiring.toNonAssocSemiring.{u1} R _inst_1) (Semiring.toNonAssocSemiring.{u1} (Polynomial.{u1} R _inst_1) (Polynomial.semiring.{u1} R _inst_1))) (Polynomial.C.{u1} R _inst_1) a)) (coeFn.{max (succ u1) (succ u2), max (succ u1) (succ u2)} 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(Polynomial.{u1} R _inst_1) (Polynomial.semiring.{u1} R _inst_1))) => R -> (Polynomial.{u1} R _inst_1)) (RingHom.hasCoeToFun.{u1, u1} R (Polynomial.{u1} R _inst_1) (Semiring.toNonAssocSemiring.{u1} R _inst_1) (Semiring.toNonAssocSemiring.{u1} (Polynomial.{u1} R _inst_1) (Polynomial.semiring.{u1} R _inst_1))) (Polynomial.C.{u1} R _inst_1) a))) -> (Eq.{succ u2} S (coeFn.{max (succ u1) (succ u2), max (succ u1) (succ u2)} (RingHom.{u1, u2} (Polynomial.{u1} R _inst_1) S (Semiring.toNonAssocSemiring.{u1} (Polynomial.{u1} R _inst_1) (Polynomial.semiring.{u1} R _inst_1)) (Semiring.toNonAssocSemiring.{u2} S _inst_2)) (fun (_x : RingHom.{u1, u2} (Polynomial.{u1} R _inst_1) S (Semiring.toNonAssocSemiring.{u1} (Polynomial.{u1} R _inst_1) (Polynomial.semiring.{u1} R _inst_1)) (Semiring.toNonAssocSemiring.{u2} S _inst_2)) => (Polynomial.{u1} R _inst_1) -> S) (RingHom.hasCoeToFun.{u1, u2} (Polynomial.{u1} R _inst_1) S (Semiring.toNonAssocSemiring.{u1} (Polynomial.{u1} R _inst_1) (Polynomial.semiring.{u1} R _inst_1)) (Semiring.toNonAssocSemiring.{u2} S _inst_2)) f (Polynomial.X.{u1} R _inst_1)) (coeFn.{max (succ u1) (succ u2), max (succ u1) (succ u2)} (RingHom.{u1, u2} (Polynomial.{u1} R _inst_1) S (Semiring.toNonAssocSemiring.{u1} (Polynomial.{u1} R _inst_1) (Polynomial.semiring.{u1} R _inst_1)) (Semiring.toNonAssocSemiring.{u2} S _inst_2)) (fun (_x : RingHom.{u1, u2} (Polynomial.{u1} R _inst_1) S (Semiring.toNonAssocSemiring.{u1} (Polynomial.{u1} R _inst_1) (Polynomial.semiring.{u1} R _inst_1)) (Semiring.toNonAssocSemiring.{u2} S _inst_2)) => (Polynomial.{u1} R _inst_1) -> S) (RingHom.hasCoeToFun.{u1, u2} (Polynomial.{u1} R _inst_1) S (Semiring.toNonAssocSemiring.{u1} (Polynomial.{u1} R _inst_1) (Polynomial.semiring.{u1} R _inst_1)) (Semiring.toNonAssocSemiring.{u2} S _inst_2)) g (Polynomial.X.{u1} R _inst_1))) -> (Eq.{max (succ u1) (succ u2)} (RingHom.{u1, u2} (Polynomial.{u1} R _inst_1) S (Semiring.toNonAssocSemiring.{u1} (Polynomial.{u1} R _inst_1) (Polynomial.semiring.{u1} R _inst_1)) (Semiring.toNonAssocSemiring.{u2} S _inst_2)) f g)
 but is expected to have type
-  forall {R : Type.{u2}} [_inst_1 : Semiring.{u2} R] {S : Type.{u1}} [_inst_2 : Semiring.{u1} S] {f : RingHom.{u2, u1} (Polynomial.{u2} R _inst_1) S (Semiring.toNonAssocSemiring.{u2} (Polynomial.{u2} R _inst_1) (Polynomial.semiring.{u2} R _inst_1)) (Semiring.toNonAssocSemiring.{u1} S _inst_2)} {g : RingHom.{u2, u1} (Polynomial.{u2} R _inst_1) S (Semiring.toNonAssocSemiring.{u2} (Polynomial.{u2} R _inst_1) (Polynomial.semiring.{u2} R _inst_1)) (Semiring.toNonAssocSemiring.{u1} S _inst_2)}, (forall (a : R), Eq.{succ u1} ((fun (x._@.Mathlib.Algebra.Hom.Group._hyg.2398 : Polynomial.{u2} R _inst_1) => S) (FunLike.coe.{succ u2, succ u2, succ u2} (RingHom.{u2, u2} R (Polynomial.{u2} R _inst_1) (Semiring.toNonAssocSemiring.{u2} R _inst_1) (Semiring.toNonAssocSemiring.{u2} (Polynomial.{u2} R _inst_1) (Polynomial.semiring.{u2} R _inst_1))) R (fun (a : R) => (fun (x._@.Mathlib.Algebra.Hom.Group._hyg.2398 : R) => Polynomial.{u2} R _inst_1) a) (MulHomClass.toFunLike.{u2, u2, u2} (RingHom.{u2, u2} 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(NonAssocSemiring.toNonUnitalNonAssocSemiring.{u2} (Polynomial.{u2} R _inst_1) (Semiring.toNonAssocSemiring.{u2} (Polynomial.{u2} R _inst_1) (Polynomial.semiring.{u2} R _inst_1))) (RingHomClass.toNonUnitalRingHomClass.{u2, u2, u2} (RingHom.{u2, u2} R (Polynomial.{u2} R _inst_1) (Semiring.toNonAssocSemiring.{u2} R _inst_1) (Semiring.toNonAssocSemiring.{u2} (Polynomial.{u2} R _inst_1) (Polynomial.semiring.{u2} R _inst_1))) R (Polynomial.{u2} R _inst_1) (Semiring.toNonAssocSemiring.{u2} R _inst_1) (Semiring.toNonAssocSemiring.{u2} (Polynomial.{u2} R _inst_1) (Polynomial.semiring.{u2} R _inst_1)) (RingHom.instRingHomClassRingHom.{u2, u2} R (Polynomial.{u2} R _inst_1) (Semiring.toNonAssocSemiring.{u2} R _inst_1) (Semiring.toNonAssocSemiring.{u2} (Polynomial.{u2} R _inst_1) (Polynomial.semiring.{u2} R _inst_1)))))) (Polynomial.C.{u2} R _inst_1) a)) (FunLike.coe.{max (succ u2) (succ u1), succ u2, succ u1} (RingHom.{u2, u1} (Polynomial.{u2} R _inst_1) S (Semiring.toNonAssocSemiring.{u2} 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(Semiring.toNonAssocSemiring.{u2} (Polynomial.{u2} R _inst_1) (Polynomial.semiring.{u2} R _inst_1)) (Semiring.toNonAssocSemiring.{u1} S _inst_2))))) f (FunLike.coe.{succ u2, succ u2, succ u2} (RingHom.{u2, u2} R (Polynomial.{u2} R _inst_1) (Semiring.toNonAssocSemiring.{u2} R _inst_1) (Semiring.toNonAssocSemiring.{u2} (Polynomial.{u2} R _inst_1) (Polynomial.semiring.{u2} R _inst_1))) R (fun (_x : R) => (fun (x._@.Mathlib.Algebra.Hom.Group._hyg.2398 : R) => Polynomial.{u2} R _inst_1) _x) (MulHomClass.toFunLike.{u2, u2, u2} (RingHom.{u2, u2} R (Polynomial.{u2} R _inst_1) (Semiring.toNonAssocSemiring.{u2} R _inst_1) (Semiring.toNonAssocSemiring.{u2} (Polynomial.{u2} R _inst_1) (Polynomial.semiring.{u2} R _inst_1))) R (Polynomial.{u2} R _inst_1) (NonUnitalNonAssocSemiring.toMul.{u2} R (NonAssocSemiring.toNonUnitalNonAssocSemiring.{u2} R (Semiring.toNonAssocSemiring.{u2} R _inst_1))) (NonUnitalNonAssocSemiring.toMul.{u2} (Polynomial.{u2} R _inst_1) (NonAssocSemiring.toNonUnitalNonAssocSemiring.{u2} (Polynomial.{u2} R _inst_1) (Semiring.toNonAssocSemiring.{u2} (Polynomial.{u2} R _inst_1) (Polynomial.semiring.{u2} R _inst_1)))) (NonUnitalRingHomClass.toMulHomClass.{u2, u2, u2} (RingHom.{u2, u2} R (Polynomial.{u2} R _inst_1) (Semiring.toNonAssocSemiring.{u2} R _inst_1) (Semiring.toNonAssocSemiring.{u2} (Polynomial.{u2} R _inst_1) (Polynomial.semiring.{u2} R _inst_1))) R (Polynomial.{u2} R _inst_1) (NonAssocSemiring.toNonUnitalNonAssocSemiring.{u2} R (Semiring.toNonAssocSemiring.{u2} R _inst_1)) (NonAssocSemiring.toNonUnitalNonAssocSemiring.{u2} (Polynomial.{u2} R _inst_1) (Semiring.toNonAssocSemiring.{u2} (Polynomial.{u2} R _inst_1) (Polynomial.semiring.{u2} R _inst_1))) (RingHomClass.toNonUnitalRingHomClass.{u2, u2, u2} (RingHom.{u2, u2} R (Polynomial.{u2} R _inst_1) (Semiring.toNonAssocSemiring.{u2} R _inst_1) (Semiring.toNonAssocSemiring.{u2} (Polynomial.{u2} R _inst_1) (Polynomial.semiring.{u2} R _inst_1))) R (Polynomial.{u2} R _inst_1) (Semiring.toNonAssocSemiring.{u2} R _inst_1) (Semiring.toNonAssocSemiring.{u2} (Polynomial.{u2} R _inst_1) (Polynomial.semiring.{u2} R _inst_1)) (RingHom.instRingHomClassRingHom.{u2, u2} R (Polynomial.{u2} R _inst_1) (Semiring.toNonAssocSemiring.{u2} R _inst_1) (Semiring.toNonAssocSemiring.{u2} (Polynomial.{u2} R _inst_1) (Polynomial.semiring.{u2} R _inst_1)))))) (Polynomial.C.{u2} R _inst_1) a)) (FunLike.coe.{max (succ u2) (succ u1), succ u2, succ u1} (RingHom.{u2, u1} (Polynomial.{u2} R _inst_1) S (Semiring.toNonAssocSemiring.{u2} (Polynomial.{u2} R _inst_1) (Polynomial.semiring.{u2} R _inst_1)) (Semiring.toNonAssocSemiring.{u1} S _inst_2)) (Polynomial.{u2} R _inst_1) (fun (_x : Polynomial.{u2} R _inst_1) => (fun (x._@.Mathlib.Algebra.Hom.Group._hyg.2398 : Polynomial.{u2} R _inst_1) => S) _x) (MulHomClass.toFunLike.{max u2 u1, u2, u1} (RingHom.{u2, u1} (Polynomial.{u2} R _inst_1) S (Semiring.toNonAssocSemiring.{u2} (Polynomial.{u2} R _inst_1) (Polynomial.semiring.{u2} R _inst_1)) (Semiring.toNonAssocSemiring.{u1} S _inst_2)) (Polynomial.{u2} R _inst_1) S (NonUnitalNonAssocSemiring.toMul.{u2} (Polynomial.{u2} R _inst_1) (NonAssocSemiring.toNonUnitalNonAssocSemiring.{u2} (Polynomial.{u2} R _inst_1) (Semiring.toNonAssocSemiring.{u2} (Polynomial.{u2} R _inst_1) (Polynomial.semiring.{u2} R _inst_1)))) (NonUnitalNonAssocSemiring.toMul.{u1} S (NonAssocSemiring.toNonUnitalNonAssocSemiring.{u1} S (Semiring.toNonAssocSemiring.{u1} S _inst_2))) (NonUnitalRingHomClass.toMulHomClass.{max u2 u1, u2, u1} (RingHom.{u2, u1} (Polynomial.{u2} R _inst_1) S (Semiring.toNonAssocSemiring.{u2} (Polynomial.{u2} R _inst_1) (Polynomial.semiring.{u2} R _inst_1)) (Semiring.toNonAssocSemiring.{u1} S _inst_2)) (Polynomial.{u2} R _inst_1) S (NonAssocSemiring.toNonUnitalNonAssocSemiring.{u2} (Polynomial.{u2} R _inst_1) (Semiring.toNonAssocSemiring.{u2} (Polynomial.{u2} R _inst_1) (Polynomial.semiring.{u2} R _inst_1))) (NonAssocSemiring.toNonUnitalNonAssocSemiring.{u1} S 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_inst_2)) f g)
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_inst_1)) (Semiring.toNonAssocSemiring.{u1} S _inst_2)) (Polynomial.{u2} R _inst_1) S (NonUnitalNonAssocSemiring.toMul.{u2} (Polynomial.{u2} R _inst_1) (NonAssocSemiring.toNonUnitalNonAssocSemiring.{u2} (Polynomial.{u2} R _inst_1) (Semiring.toNonAssocSemiring.{u2} (Polynomial.{u2} R _inst_1) (Polynomial.semiring.{u2} R _inst_1)))) (NonUnitalNonAssocSemiring.toMul.{u1} S (NonAssocSemiring.toNonUnitalNonAssocSemiring.{u1} S (Semiring.toNonAssocSemiring.{u1} S _inst_2))) (NonUnitalRingHomClass.toMulHomClass.{max u2 u1, u2, u1} (RingHom.{u2, u1} (Polynomial.{u2} R _inst_1) S (Semiring.toNonAssocSemiring.{u2} (Polynomial.{u2} R _inst_1) (Polynomial.semiring.{u2} R _inst_1)) (Semiring.toNonAssocSemiring.{u1} S _inst_2)) (Polynomial.{u2} R _inst_1) S (NonAssocSemiring.toNonUnitalNonAssocSemiring.{u2} (Polynomial.{u2} R _inst_1) (Semiring.toNonAssocSemiring.{u2} (Polynomial.{u2} R _inst_1) (Polynomial.semiring.{u2} R _inst_1))) (NonAssocSemiring.toNonUnitalNonAssocSemiring.{u1} S (Semiring.toNonAssocSemiring.{u1} S _inst_2)) (RingHomClass.toNonUnitalRingHomClass.{max u2 u1, u2, u1} (RingHom.{u2, u1} (Polynomial.{u2} R _inst_1) S (Semiring.toNonAssocSemiring.{u2} (Polynomial.{u2} R _inst_1) (Polynomial.semiring.{u2} R _inst_1)) (Semiring.toNonAssocSemiring.{u1} S _inst_2)) (Polynomial.{u2} R _inst_1) S (Semiring.toNonAssocSemiring.{u2} (Polynomial.{u2} R _inst_1) (Polynomial.semiring.{u2} R _inst_1)) (Semiring.toNonAssocSemiring.{u1} S _inst_2) (RingHom.instRingHomClassRingHom.{u2, u1} (Polynomial.{u2} R _inst_1) S (Semiring.toNonAssocSemiring.{u2} (Polynomial.{u2} R _inst_1) (Polynomial.semiring.{u2} R _inst_1)) (Semiring.toNonAssocSemiring.{u1} S _inst_2))))) g (FunLike.coe.{succ u2, succ u2, succ u2} (RingHom.{u2, u2} R (Polynomial.{u2} R _inst_1) (Semiring.toNonAssocSemiring.{u2} R _inst_1) (Semiring.toNonAssocSemiring.{u2} (Polynomial.{u2} R _inst_1) (Polynomial.semiring.{u2} R _inst_1))) R (fun (_x : R) => (fun (x._@.Mathlib.Algebra.Hom.Group._hyg.2372 : R) => Polynomial.{u2} R _inst_1) _x) (MulHomClass.toFunLike.{u2, u2, u2} (RingHom.{u2, u2} R (Polynomial.{u2} R _inst_1) (Semiring.toNonAssocSemiring.{u2} R _inst_1) (Semiring.toNonAssocSemiring.{u2} (Polynomial.{u2} R _inst_1) (Polynomial.semiring.{u2} R _inst_1))) R (Polynomial.{u2} R _inst_1) (NonUnitalNonAssocSemiring.toMul.{u2} R (NonAssocSemiring.toNonUnitalNonAssocSemiring.{u2} R (Semiring.toNonAssocSemiring.{u2} R _inst_1))) (NonUnitalNonAssocSemiring.toMul.{u2} (Polynomial.{u2} R _inst_1) (NonAssocSemiring.toNonUnitalNonAssocSemiring.{u2} (Polynomial.{u2} R _inst_1) (Semiring.toNonAssocSemiring.{u2} (Polynomial.{u2} R _inst_1) (Polynomial.semiring.{u2} R _inst_1)))) (NonUnitalRingHomClass.toMulHomClass.{u2, u2, u2} (RingHom.{u2, u2} R (Polynomial.{u2} R _inst_1) (Semiring.toNonAssocSemiring.{u2} R _inst_1) (Semiring.toNonAssocSemiring.{u2} (Polynomial.{u2} R _inst_1) (Polynomial.semiring.{u2} R _inst_1))) R (Polynomial.{u2} R _inst_1) (NonAssocSemiring.toNonUnitalNonAssocSemiring.{u2} R (Semiring.toNonAssocSemiring.{u2} R _inst_1)) (NonAssocSemiring.toNonUnitalNonAssocSemiring.{u2} (Polynomial.{u2} R _inst_1) (Semiring.toNonAssocSemiring.{u2} (Polynomial.{u2} R _inst_1) (Polynomial.semiring.{u2} R _inst_1))) (RingHomClass.toNonUnitalRingHomClass.{u2, u2, u2} (RingHom.{u2, u2} R (Polynomial.{u2} R _inst_1) (Semiring.toNonAssocSemiring.{u2} R _inst_1) (Semiring.toNonAssocSemiring.{u2} (Polynomial.{u2} R _inst_1) (Polynomial.semiring.{u2} R _inst_1))) R (Polynomial.{u2} R _inst_1) (Semiring.toNonAssocSemiring.{u2} R _inst_1) (Semiring.toNonAssocSemiring.{u2} (Polynomial.{u2} R _inst_1) (Polynomial.semiring.{u2} R _inst_1)) (RingHom.instRingHomClassRingHom.{u2, u2} R (Polynomial.{u2} R _inst_1) (Semiring.toNonAssocSemiring.{u2} R _inst_1) (Semiring.toNonAssocSemiring.{u2} (Polynomial.{u2} R _inst_1) (Polynomial.semiring.{u2} R _inst_1)))))) (Polynomial.C.{u2} R _inst_1) a))) -> (Eq.{succ u1} ((fun (x._@.Mathlib.Algebra.Hom.Group._hyg.2372 : Polynomial.{u2} R _inst_1) => S) (Polynomial.X.{u2} R _inst_1)) (FunLike.coe.{max (succ u2) (succ u1), succ u2, succ u1} (RingHom.{u2, u1} (Polynomial.{u2} R _inst_1) S (Semiring.toNonAssocSemiring.{u2} (Polynomial.{u2} R _inst_1) (Polynomial.semiring.{u2} R _inst_1)) (Semiring.toNonAssocSemiring.{u1} S _inst_2)) (Polynomial.{u2} R _inst_1) (fun (_x : Polynomial.{u2} R _inst_1) => (fun (x._@.Mathlib.Algebra.Hom.Group._hyg.2372 : Polynomial.{u2} R _inst_1) => S) _x) (MulHomClass.toFunLike.{max u2 u1, u2, u1} (RingHom.{u2, u1} (Polynomial.{u2} R _inst_1) S (Semiring.toNonAssocSemiring.{u2} (Polynomial.{u2} R _inst_1) (Polynomial.semiring.{u2} R _inst_1)) (Semiring.toNonAssocSemiring.{u1} S _inst_2)) (Polynomial.{u2} R _inst_1) S (NonUnitalNonAssocSemiring.toMul.{u2} (Polynomial.{u2} R _inst_1) (NonAssocSemiring.toNonUnitalNonAssocSemiring.{u2} (Polynomial.{u2} R _inst_1) (Semiring.toNonAssocSemiring.{u2} (Polynomial.{u2} R _inst_1) (Polynomial.semiring.{u2} R _inst_1)))) (NonUnitalNonAssocSemiring.toMul.{u1} S (NonAssocSemiring.toNonUnitalNonAssocSemiring.{u1} S (Semiring.toNonAssocSemiring.{u1} S _inst_2))) (NonUnitalRingHomClass.toMulHomClass.{max u2 u1, u2, u1} (RingHom.{u2, u1} (Polynomial.{u2} R _inst_1) S (Semiring.toNonAssocSemiring.{u2} (Polynomial.{u2} R _inst_1) (Polynomial.semiring.{u2} R _inst_1)) (Semiring.toNonAssocSemiring.{u1} S _inst_2)) (Polynomial.{u2} R _inst_1) S (NonAssocSemiring.toNonUnitalNonAssocSemiring.{u2} (Polynomial.{u2} R _inst_1) (Semiring.toNonAssocSemiring.{u2} (Polynomial.{u2} R _inst_1) (Polynomial.semiring.{u2} R _inst_1))) (NonAssocSemiring.toNonUnitalNonAssocSemiring.{u1} S (Semiring.toNonAssocSemiring.{u1} S _inst_2)) (RingHomClass.toNonUnitalRingHomClass.{max u2 u1, u2, u1} (RingHom.{u2, u1} (Polynomial.{u2} R _inst_1) S (Semiring.toNonAssocSemiring.{u2} (Polynomial.{u2} R _inst_1) (Polynomial.semiring.{u2} R _inst_1)) (Semiring.toNonAssocSemiring.{u1} S _inst_2)) (Polynomial.{u2} R _inst_1) S (Semiring.toNonAssocSemiring.{u2} (Polynomial.{u2} R _inst_1) (Polynomial.semiring.{u2} R _inst_1)) (Semiring.toNonAssocSemiring.{u1} S _inst_2) (RingHom.instRingHomClassRingHom.{u2, u1} (Polynomial.{u2} R _inst_1) S (Semiring.toNonAssocSemiring.{u2} (Polynomial.{u2} R _inst_1) (Polynomial.semiring.{u2} R _inst_1)) (Semiring.toNonAssocSemiring.{u1} S _inst_2))))) f (Polynomial.X.{u2} R _inst_1)) (FunLike.coe.{max (succ u2) (succ u1), succ u2, succ u1} (RingHom.{u2, u1} (Polynomial.{u2} R _inst_1) S (Semiring.toNonAssocSemiring.{u2} (Polynomial.{u2} R _inst_1) (Polynomial.semiring.{u2} R _inst_1)) (Semiring.toNonAssocSemiring.{u1} S _inst_2)) (Polynomial.{u2} R _inst_1) (fun (_x : Polynomial.{u2} R _inst_1) => (fun (x._@.Mathlib.Algebra.Hom.Group._hyg.2372 : Polynomial.{u2} R _inst_1) => S) _x) (MulHomClass.toFunLike.{max u2 u1, u2, u1} (RingHom.{u2, u1} (Polynomial.{u2} R _inst_1) S (Semiring.toNonAssocSemiring.{u2} (Polynomial.{u2} R _inst_1) (Polynomial.semiring.{u2} R _inst_1)) (Semiring.toNonAssocSemiring.{u1} S _inst_2)) (Polynomial.{u2} R _inst_1) S (NonUnitalNonAssocSemiring.toMul.{u2} (Polynomial.{u2} R _inst_1) (NonAssocSemiring.toNonUnitalNonAssocSemiring.{u2} (Polynomial.{u2} R _inst_1) (Semiring.toNonAssocSemiring.{u2} (Polynomial.{u2} R _inst_1) (Polynomial.semiring.{u2} R _inst_1)))) (NonUnitalNonAssocSemiring.toMul.{u1} S (NonAssocSemiring.toNonUnitalNonAssocSemiring.{u1} S (Semiring.toNonAssocSemiring.{u1} S _inst_2))) (NonUnitalRingHomClass.toMulHomClass.{max u2 u1, u2, u1} (RingHom.{u2, u1} (Polynomial.{u2} R _inst_1) S (Semiring.toNonAssocSemiring.{u2} (Polynomial.{u2} R _inst_1) (Polynomial.semiring.{u2} R _inst_1)) (Semiring.toNonAssocSemiring.{u1} S _inst_2)) (Polynomial.{u2} R _inst_1) S (NonAssocSemiring.toNonUnitalNonAssocSemiring.{u2} (Polynomial.{u2} R _inst_1) (Semiring.toNonAssocSemiring.{u2} (Polynomial.{u2} R _inst_1) (Polynomial.semiring.{u2} R _inst_1))) (NonAssocSemiring.toNonUnitalNonAssocSemiring.{u1} S (Semiring.toNonAssocSemiring.{u1} S _inst_2)) (RingHomClass.toNonUnitalRingHomClass.{max u2 u1, u2, u1} (RingHom.{u2, u1} (Polynomial.{u2} R _inst_1) S (Semiring.toNonAssocSemiring.{u2} (Polynomial.{u2} R _inst_1) (Polynomial.semiring.{u2} R _inst_1)) (Semiring.toNonAssocSemiring.{u1} S _inst_2)) (Polynomial.{u2} R _inst_1) S (Semiring.toNonAssocSemiring.{u2} (Polynomial.{u2} R _inst_1) (Polynomial.semiring.{u2} R _inst_1)) (Semiring.toNonAssocSemiring.{u1} S _inst_2) (RingHom.instRingHomClassRingHom.{u2, u1} (Polynomial.{u2} R _inst_1) S (Semiring.toNonAssocSemiring.{u2} (Polynomial.{u2} R _inst_1) (Polynomial.semiring.{u2} R _inst_1)) (Semiring.toNonAssocSemiring.{u1} S _inst_2))))) g (Polynomial.X.{u2} R _inst_1))) -> (Eq.{max (succ u2) (succ u1)} (RingHom.{u2, u1} (Polynomial.{u2} R _inst_1) S (Semiring.toNonAssocSemiring.{u2} (Polynomial.{u2} R _inst_1) (Polynomial.semiring.{u2} R _inst_1)) (Semiring.toNonAssocSemiring.{u1} S _inst_2)) f g)
 Case conversion may be inaccurate. Consider using '#align polynomial.ring_hom_ext Polynomial.ringHom_extₓ'. -/
 theorem ringHom_ext {S} [Semiring S] {f g : R[X] →+* S} (h₁ : ∀ a, f (C a) = g (C a))
     (h₂ : f X = g X) : f = g :=
@@ -106,7 +106,7 @@ theorem ringHom_ext {S} [Semiring S] {f g : R[X] →+* S} (h₁ : ∀ a, f (C a)
 lean 3 declaration is
   forall {R : Type.{u1}} [_inst_1 : Semiring.{u1} R] {S : Type.{u2}} [_inst_2 : Semiring.{u2} S] {f : RingHom.{u1, u2} (Polynomial.{u1} R _inst_1) S (Semiring.toNonAssocSemiring.{u1} (Polynomial.{u1} R _inst_1) (Polynomial.semiring.{u1} R _inst_1)) (Semiring.toNonAssocSemiring.{u2} S _inst_2)} {g : RingHom.{u1, u2} (Polynomial.{u1} R _inst_1) S (Semiring.toNonAssocSemiring.{u1} (Polynomial.{u1} R _inst_1) (Polynomial.semiring.{u1} R _inst_1)) (Semiring.toNonAssocSemiring.{u2} S _inst_2)}, (Eq.{max (succ u1) (succ u2)} (RingHom.{u1, u2} R S (Semiring.toNonAssocSemiring.{u1} R _inst_1) (Semiring.toNonAssocSemiring.{u2} S _inst_2)) (RingHom.comp.{u1, u1, u2} R (Polynomial.{u1} R _inst_1) S (Semiring.toNonAssocSemiring.{u1} R _inst_1) (Semiring.toNonAssocSemiring.{u1} (Polynomial.{u1} R _inst_1) (Polynomial.semiring.{u1} R _inst_1)) (Semiring.toNonAssocSemiring.{u2} S _inst_2) f (Polynomial.C.{u1} R _inst_1)) (RingHom.comp.{u1, u1, u2} R (Polynomial.{u1} R _inst_1) S (Semiring.toNonAssocSemiring.{u1} R _inst_1) (Semiring.toNonAssocSemiring.{u1} (Polynomial.{u1} R _inst_1) (Polynomial.semiring.{u1} R _inst_1)) (Semiring.toNonAssocSemiring.{u2} S _inst_2) g (Polynomial.C.{u1} R _inst_1))) -> (Eq.{succ u2} S (coeFn.{max (succ u1) (succ u2), max (succ u1) (succ u2)} (RingHom.{u1, u2} (Polynomial.{u1} R _inst_1) S (Semiring.toNonAssocSemiring.{u1} (Polynomial.{u1} R _inst_1) (Polynomial.semiring.{u1} R _inst_1)) (Semiring.toNonAssocSemiring.{u2} S _inst_2)) (fun (_x : RingHom.{u1, u2} (Polynomial.{u1} R _inst_1) S (Semiring.toNonAssocSemiring.{u1} (Polynomial.{u1} R _inst_1) (Polynomial.semiring.{u1} R _inst_1)) (Semiring.toNonAssocSemiring.{u2} S _inst_2)) => (Polynomial.{u1} R _inst_1) -> S) (RingHom.hasCoeToFun.{u1, u2} (Polynomial.{u1} R _inst_1) S (Semiring.toNonAssocSemiring.{u1} (Polynomial.{u1} R _inst_1) (Polynomial.semiring.{u1} R _inst_1)) (Semiring.toNonAssocSemiring.{u2} S _inst_2)) f (Polynomial.X.{u1} R _inst_1)) (coeFn.{max (succ u1) (succ u2), max (succ u1) (succ u2)} (RingHom.{u1, u2} (Polynomial.{u1} R _inst_1) S (Semiring.toNonAssocSemiring.{u1} (Polynomial.{u1} R _inst_1) (Polynomial.semiring.{u1} R _inst_1)) (Semiring.toNonAssocSemiring.{u2} S _inst_2)) (fun (_x : RingHom.{u1, u2} (Polynomial.{u1} R _inst_1) S (Semiring.toNonAssocSemiring.{u1} (Polynomial.{u1} R _inst_1) (Polynomial.semiring.{u1} R _inst_1)) (Semiring.toNonAssocSemiring.{u2} S _inst_2)) => (Polynomial.{u1} R _inst_1) -> S) (RingHom.hasCoeToFun.{u1, u2} (Polynomial.{u1} R _inst_1) S (Semiring.toNonAssocSemiring.{u1} (Polynomial.{u1} R _inst_1) (Polynomial.semiring.{u1} R _inst_1)) (Semiring.toNonAssocSemiring.{u2} S _inst_2)) g (Polynomial.X.{u1} R _inst_1))) -> (Eq.{max (succ u1) (succ u2)} (RingHom.{u1, u2} (Polynomial.{u1} R _inst_1) S (Semiring.toNonAssocSemiring.{u1} (Polynomial.{u1} R _inst_1) (Polynomial.semiring.{u1} R _inst_1)) (Semiring.toNonAssocSemiring.{u2} S _inst_2)) f g)
 but is expected to have type
-  forall {R : Type.{u2}} [_inst_1 : Semiring.{u2} R] {S : Type.{u1}} [_inst_2 : Semiring.{u1} S] {f : RingHom.{u2, u1} (Polynomial.{u2} R _inst_1) S (Semiring.toNonAssocSemiring.{u2} (Polynomial.{u2} R _inst_1) (Polynomial.semiring.{u2} R _inst_1)) (Semiring.toNonAssocSemiring.{u1} S _inst_2)} {g : RingHom.{u2, u1} (Polynomial.{u2} R _inst_1) S (Semiring.toNonAssocSemiring.{u2} (Polynomial.{u2} R _inst_1) (Polynomial.semiring.{u2} R _inst_1)) (Semiring.toNonAssocSemiring.{u1} S _inst_2)}, (Eq.{max (succ u2) (succ u1)} (RingHom.{u2, u1} R S (Semiring.toNonAssocSemiring.{u2} R _inst_1) (Semiring.toNonAssocSemiring.{u1} S _inst_2)) (RingHom.comp.{u2, u2, u1} R (Polynomial.{u2} R _inst_1) S (Semiring.toNonAssocSemiring.{u2} R _inst_1) (Semiring.toNonAssocSemiring.{u2} (Polynomial.{u2} R _inst_1) (Polynomial.semiring.{u2} R _inst_1)) (Semiring.toNonAssocSemiring.{u1} S _inst_2) f (Polynomial.C.{u2} R _inst_1)) (RingHom.comp.{u2, u2, u1} R (Polynomial.{u2} R _inst_1) S (Semiring.toNonAssocSemiring.{u2} R _inst_1) (Semiring.toNonAssocSemiring.{u2} (Polynomial.{u2} R _inst_1) (Polynomial.semiring.{u2} R _inst_1)) (Semiring.toNonAssocSemiring.{u1} S _inst_2) g (Polynomial.C.{u2} R _inst_1))) -> (Eq.{succ u1} ((fun (x._@.Mathlib.Algebra.Hom.Group._hyg.2398 : Polynomial.{u2} R _inst_1) => S) (Polynomial.X.{u2} R _inst_1)) (FunLike.coe.{max (succ u2) (succ u1), succ u2, succ u1} (RingHom.{u2, u1} (Polynomial.{u2} R _inst_1) S (Semiring.toNonAssocSemiring.{u2} (Polynomial.{u2} R _inst_1) (Polynomial.semiring.{u2} R _inst_1)) (Semiring.toNonAssocSemiring.{u1} S _inst_2)) (Polynomial.{u2} R _inst_1) (fun (_x : Polynomial.{u2} R _inst_1) => (fun (x._@.Mathlib.Algebra.Hom.Group._hyg.2398 : Polynomial.{u2} R _inst_1) => S) _x) (MulHomClass.toFunLike.{max u2 u1, u2, u1} (RingHom.{u2, u1} (Polynomial.{u2} R _inst_1) S (Semiring.toNonAssocSemiring.{u2} (Polynomial.{u2} R _inst_1) (Polynomial.semiring.{u2} R _inst_1)) (Semiring.toNonAssocSemiring.{u1} S _inst_2)) (Polynomial.{u2} R _inst_1) S (NonUnitalNonAssocSemiring.toMul.{u2} (Polynomial.{u2} R _inst_1) (NonAssocSemiring.toNonUnitalNonAssocSemiring.{u2} (Polynomial.{u2} R _inst_1) (Semiring.toNonAssocSemiring.{u2} (Polynomial.{u2} R _inst_1) (Polynomial.semiring.{u2} R _inst_1)))) (NonUnitalNonAssocSemiring.toMul.{u1} S (NonAssocSemiring.toNonUnitalNonAssocSemiring.{u1} S (Semiring.toNonAssocSemiring.{u1} S _inst_2))) (NonUnitalRingHomClass.toMulHomClass.{max u2 u1, u2, u1} (RingHom.{u2, u1} (Polynomial.{u2} R _inst_1) S (Semiring.toNonAssocSemiring.{u2} (Polynomial.{u2} R _inst_1) (Polynomial.semiring.{u2} R _inst_1)) (Semiring.toNonAssocSemiring.{u1} S _inst_2)) (Polynomial.{u2} R _inst_1) S (NonAssocSemiring.toNonUnitalNonAssocSemiring.{u2} (Polynomial.{u2} R _inst_1) (Semiring.toNonAssocSemiring.{u2} (Polynomial.{u2} R _inst_1) (Polynomial.semiring.{u2} R _inst_1))) (NonAssocSemiring.toNonUnitalNonAssocSemiring.{u1} S (Semiring.toNonAssocSemiring.{u1} S _inst_2)) (RingHomClass.toNonUnitalRingHomClass.{max u2 u1, u2, u1} (RingHom.{u2, u1} (Polynomial.{u2} R _inst_1) S (Semiring.toNonAssocSemiring.{u2} (Polynomial.{u2} R _inst_1) (Polynomial.semiring.{u2} R _inst_1)) (Semiring.toNonAssocSemiring.{u1} S _inst_2)) (Polynomial.{u2} R _inst_1) S (Semiring.toNonAssocSemiring.{u2} (Polynomial.{u2} R _inst_1) (Polynomial.semiring.{u2} R _inst_1)) (Semiring.toNonAssocSemiring.{u1} S _inst_2) (RingHom.instRingHomClassRingHom.{u2, u1} (Polynomial.{u2} R _inst_1) S (Semiring.toNonAssocSemiring.{u2} (Polynomial.{u2} R _inst_1) (Polynomial.semiring.{u2} R _inst_1)) (Semiring.toNonAssocSemiring.{u1} S _inst_2))))) f (Polynomial.X.{u2} R _inst_1)) (FunLike.coe.{max (succ u2) (succ u1), succ u2, succ u1} (RingHom.{u2, u1} (Polynomial.{u2} R _inst_1) S (Semiring.toNonAssocSemiring.{u2} (Polynomial.{u2} R _inst_1) (Polynomial.semiring.{u2} R _inst_1)) (Semiring.toNonAssocSemiring.{u1} S _inst_2)) (Polynomial.{u2} R _inst_1) (fun (_x : Polynomial.{u2} R _inst_1) => (fun (x._@.Mathlib.Algebra.Hom.Group._hyg.2398 : Polynomial.{u2} R _inst_1) => S) _x) (MulHomClass.toFunLike.{max u2 u1, u2, u1} (RingHom.{u2, u1} (Polynomial.{u2} R _inst_1) S (Semiring.toNonAssocSemiring.{u2} (Polynomial.{u2} R _inst_1) (Polynomial.semiring.{u2} R _inst_1)) (Semiring.toNonAssocSemiring.{u1} S _inst_2)) (Polynomial.{u2} R _inst_1) S (NonUnitalNonAssocSemiring.toMul.{u2} (Polynomial.{u2} R _inst_1) (NonAssocSemiring.toNonUnitalNonAssocSemiring.{u2} (Polynomial.{u2} R _inst_1) (Semiring.toNonAssocSemiring.{u2} (Polynomial.{u2} R _inst_1) (Polynomial.semiring.{u2} R _inst_1)))) (NonUnitalNonAssocSemiring.toMul.{u1} S (NonAssocSemiring.toNonUnitalNonAssocSemiring.{u1} S (Semiring.toNonAssocSemiring.{u1} S _inst_2))) (NonUnitalRingHomClass.toMulHomClass.{max u2 u1, u2, u1} (RingHom.{u2, u1} (Polynomial.{u2} R _inst_1) S (Semiring.toNonAssocSemiring.{u2} (Polynomial.{u2} R _inst_1) (Polynomial.semiring.{u2} R _inst_1)) (Semiring.toNonAssocSemiring.{u1} S _inst_2)) (Polynomial.{u2} R _inst_1) S (NonAssocSemiring.toNonUnitalNonAssocSemiring.{u2} (Polynomial.{u2} R _inst_1) (Semiring.toNonAssocSemiring.{u2} (Polynomial.{u2} R _inst_1) (Polynomial.semiring.{u2} R _inst_1))) (NonAssocSemiring.toNonUnitalNonAssocSemiring.{u1} S (Semiring.toNonAssocSemiring.{u1} S _inst_2)) (RingHomClass.toNonUnitalRingHomClass.{max u2 u1, u2, u1} (RingHom.{u2, u1} (Polynomial.{u2} R _inst_1) S (Semiring.toNonAssocSemiring.{u2} (Polynomial.{u2} R _inst_1) (Polynomial.semiring.{u2} R _inst_1)) (Semiring.toNonAssocSemiring.{u1} S _inst_2)) (Polynomial.{u2} R _inst_1) S (Semiring.toNonAssocSemiring.{u2} (Polynomial.{u2} R _inst_1) (Polynomial.semiring.{u2} R _inst_1)) (Semiring.toNonAssocSemiring.{u1} S _inst_2) (RingHom.instRingHomClassRingHom.{u2, u1} (Polynomial.{u2} R _inst_1) S (Semiring.toNonAssocSemiring.{u2} (Polynomial.{u2} R _inst_1) (Polynomial.semiring.{u2} R _inst_1)) (Semiring.toNonAssocSemiring.{u1} S _inst_2))))) g (Polynomial.X.{u2} R _inst_1))) -> (Eq.{max (succ u2) (succ u1)} (RingHom.{u2, u1} (Polynomial.{u2} R _inst_1) S (Semiring.toNonAssocSemiring.{u2} (Polynomial.{u2} R _inst_1) (Polynomial.semiring.{u2} R _inst_1)) (Semiring.toNonAssocSemiring.{u1} S _inst_2)) f g)
+  forall {R : Type.{u2}} [_inst_1 : Semiring.{u2} R] {S : Type.{u1}} [_inst_2 : Semiring.{u1} S] {f : RingHom.{u2, u1} (Polynomial.{u2} R _inst_1) S (Semiring.toNonAssocSemiring.{u2} (Polynomial.{u2} R _inst_1) (Polynomial.semiring.{u2} R _inst_1)) (Semiring.toNonAssocSemiring.{u1} S _inst_2)} {g : RingHom.{u2, u1} (Polynomial.{u2} R _inst_1) S (Semiring.toNonAssocSemiring.{u2} (Polynomial.{u2} R _inst_1) (Polynomial.semiring.{u2} R _inst_1)) (Semiring.toNonAssocSemiring.{u1} S _inst_2)}, (Eq.{max (succ u2) (succ u1)} (RingHom.{u2, u1} R S (Semiring.toNonAssocSemiring.{u2} R _inst_1) (Semiring.toNonAssocSemiring.{u1} S _inst_2)) (RingHom.comp.{u2, u2, u1} R (Polynomial.{u2} R _inst_1) S (Semiring.toNonAssocSemiring.{u2} R _inst_1) (Semiring.toNonAssocSemiring.{u2} (Polynomial.{u2} R _inst_1) (Polynomial.semiring.{u2} R _inst_1)) (Semiring.toNonAssocSemiring.{u1} S _inst_2) f (Polynomial.C.{u2} R _inst_1)) (RingHom.comp.{u2, u2, u1} R (Polynomial.{u2} R _inst_1) S (Semiring.toNonAssocSemiring.{u2} R _inst_1) (Semiring.toNonAssocSemiring.{u2} (Polynomial.{u2} R _inst_1) (Polynomial.semiring.{u2} R _inst_1)) (Semiring.toNonAssocSemiring.{u1} S _inst_2) g (Polynomial.C.{u2} R _inst_1))) -> (Eq.{succ u1} ((fun (x._@.Mathlib.Algebra.Hom.Group._hyg.2372 : Polynomial.{u2} R _inst_1) => S) (Polynomial.X.{u2} R _inst_1)) (FunLike.coe.{max (succ u2) (succ u1), succ u2, succ u1} (RingHom.{u2, u1} (Polynomial.{u2} R _inst_1) S (Semiring.toNonAssocSemiring.{u2} (Polynomial.{u2} R _inst_1) (Polynomial.semiring.{u2} R _inst_1)) (Semiring.toNonAssocSemiring.{u1} S _inst_2)) (Polynomial.{u2} R _inst_1) (fun (_x : Polynomial.{u2} R _inst_1) => (fun (x._@.Mathlib.Algebra.Hom.Group._hyg.2372 : Polynomial.{u2} R _inst_1) => S) _x) (MulHomClass.toFunLike.{max u2 u1, u2, u1} (RingHom.{u2, u1} (Polynomial.{u2} R _inst_1) S (Semiring.toNonAssocSemiring.{u2} (Polynomial.{u2} R _inst_1) (Polynomial.semiring.{u2} R _inst_1)) (Semiring.toNonAssocSemiring.{u1} S _inst_2)) (Polynomial.{u2} R _inst_1) S (NonUnitalNonAssocSemiring.toMul.{u2} (Polynomial.{u2} R _inst_1) (NonAssocSemiring.toNonUnitalNonAssocSemiring.{u2} (Polynomial.{u2} R _inst_1) (Semiring.toNonAssocSemiring.{u2} (Polynomial.{u2} R _inst_1) (Polynomial.semiring.{u2} R _inst_1)))) (NonUnitalNonAssocSemiring.toMul.{u1} S (NonAssocSemiring.toNonUnitalNonAssocSemiring.{u1} S (Semiring.toNonAssocSemiring.{u1} S _inst_2))) (NonUnitalRingHomClass.toMulHomClass.{max u2 u1, u2, u1} (RingHom.{u2, u1} (Polynomial.{u2} R _inst_1) S (Semiring.toNonAssocSemiring.{u2} (Polynomial.{u2} R _inst_1) (Polynomial.semiring.{u2} R _inst_1)) (Semiring.toNonAssocSemiring.{u1} S _inst_2)) (Polynomial.{u2} R _inst_1) S (NonAssocSemiring.toNonUnitalNonAssocSemiring.{u2} (Polynomial.{u2} R _inst_1) (Semiring.toNonAssocSemiring.{u2} (Polynomial.{u2} R _inst_1) (Polynomial.semiring.{u2} R _inst_1))) (NonAssocSemiring.toNonUnitalNonAssocSemiring.{u1} S (Semiring.toNonAssocSemiring.{u1} S _inst_2)) (RingHomClass.toNonUnitalRingHomClass.{max u2 u1, u2, u1} (RingHom.{u2, u1} (Polynomial.{u2} R _inst_1) S (Semiring.toNonAssocSemiring.{u2} (Polynomial.{u2} R _inst_1) (Polynomial.semiring.{u2} R _inst_1)) (Semiring.toNonAssocSemiring.{u1} S _inst_2)) (Polynomial.{u2} R _inst_1) S (Semiring.toNonAssocSemiring.{u2} (Polynomial.{u2} R _inst_1) (Polynomial.semiring.{u2} R _inst_1)) (Semiring.toNonAssocSemiring.{u1} S _inst_2) (RingHom.instRingHomClassRingHom.{u2, u1} (Polynomial.{u2} R _inst_1) S (Semiring.toNonAssocSemiring.{u2} (Polynomial.{u2} R _inst_1) (Polynomial.semiring.{u2} R _inst_1)) (Semiring.toNonAssocSemiring.{u1} S _inst_2))))) f (Polynomial.X.{u2} R _inst_1)) (FunLike.coe.{max (succ u2) (succ u1), succ u2, succ u1} (RingHom.{u2, u1} (Polynomial.{u2} R _inst_1) S (Semiring.toNonAssocSemiring.{u2} (Polynomial.{u2} R _inst_1) (Polynomial.semiring.{u2} R _inst_1)) (Semiring.toNonAssocSemiring.{u1} S _inst_2)) (Polynomial.{u2} R _inst_1) (fun (_x : Polynomial.{u2} R _inst_1) => (fun (x._@.Mathlib.Algebra.Hom.Group._hyg.2372 : Polynomial.{u2} R _inst_1) => S) _x) (MulHomClass.toFunLike.{max u2 u1, u2, u1} (RingHom.{u2, u1} (Polynomial.{u2} R _inst_1) S (Semiring.toNonAssocSemiring.{u2} (Polynomial.{u2} R _inst_1) (Polynomial.semiring.{u2} R _inst_1)) (Semiring.toNonAssocSemiring.{u1} S _inst_2)) (Polynomial.{u2} R _inst_1) S (NonUnitalNonAssocSemiring.toMul.{u2} (Polynomial.{u2} R _inst_1) (NonAssocSemiring.toNonUnitalNonAssocSemiring.{u2} (Polynomial.{u2} R _inst_1) (Semiring.toNonAssocSemiring.{u2} (Polynomial.{u2} R _inst_1) (Polynomial.semiring.{u2} R _inst_1)))) (NonUnitalNonAssocSemiring.toMul.{u1} S (NonAssocSemiring.toNonUnitalNonAssocSemiring.{u1} S (Semiring.toNonAssocSemiring.{u1} S _inst_2))) (NonUnitalRingHomClass.toMulHomClass.{max u2 u1, u2, u1} (RingHom.{u2, u1} (Polynomial.{u2} R _inst_1) S (Semiring.toNonAssocSemiring.{u2} (Polynomial.{u2} R _inst_1) (Polynomial.semiring.{u2} R _inst_1)) (Semiring.toNonAssocSemiring.{u1} S _inst_2)) (Polynomial.{u2} R _inst_1) S (NonAssocSemiring.toNonUnitalNonAssocSemiring.{u2} (Polynomial.{u2} R _inst_1) (Semiring.toNonAssocSemiring.{u2} (Polynomial.{u2} R _inst_1) (Polynomial.semiring.{u2} R _inst_1))) (NonAssocSemiring.toNonUnitalNonAssocSemiring.{u1} S (Semiring.toNonAssocSemiring.{u1} S _inst_2)) (RingHomClass.toNonUnitalRingHomClass.{max u2 u1, u2, u1} (RingHom.{u2, u1} (Polynomial.{u2} R _inst_1) S (Semiring.toNonAssocSemiring.{u2} (Polynomial.{u2} R _inst_1) (Polynomial.semiring.{u2} R _inst_1)) (Semiring.toNonAssocSemiring.{u1} S _inst_2)) (Polynomial.{u2} R _inst_1) S (Semiring.toNonAssocSemiring.{u2} (Polynomial.{u2} R _inst_1) (Polynomial.semiring.{u2} R _inst_1)) (Semiring.toNonAssocSemiring.{u1} S _inst_2) (RingHom.instRingHomClassRingHom.{u2, u1} (Polynomial.{u2} R _inst_1) S (Semiring.toNonAssocSemiring.{u2} (Polynomial.{u2} R _inst_1) (Polynomial.semiring.{u2} R _inst_1)) (Semiring.toNonAssocSemiring.{u1} S _inst_2))))) g (Polynomial.X.{u2} R _inst_1))) -> (Eq.{max (succ u2) (succ u1)} (RingHom.{u2, u1} (Polynomial.{u2} R _inst_1) S (Semiring.toNonAssocSemiring.{u2} (Polynomial.{u2} R _inst_1) (Polynomial.semiring.{u2} R _inst_1)) (Semiring.toNonAssocSemiring.{u1} S _inst_2)) f g)
 Case conversion may be inaccurate. Consider using '#align polynomial.ring_hom_ext' Polynomial.ringHom_ext'ₓ'. -/
 @[ext]
 theorem ringHom_ext' {S} [Semiring S] {f g : R[X] →+* S} (h₁ : f.comp C = g.comp C)

220f71ba

bump to nightly-2023-03-08-10

mathlib commit https://github.com/leanprover-community/mathlib/commit/38f16f960f5006c6c0c2bac7b0aba5273188f4e5

422cc012

Diff

@@ -29,6 +29,12 @@ variable {R : Type u} {a b : R} {m n : ℕ}
 
 variable [Semiring R] {p q r : R[X]}
 
+/- warning: polynomial.monomial_one_eq_iff -> Polynomial.monomial_one_eq_iff is a dubious translation:
+lean 3 declaration is
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+but is expected to have type
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+Case conversion may be inaccurate. Consider using '#align polynomial.monomial_one_eq_iff Polynomial.monomial_one_eq_iffₓ'. -/
 theorem monomial_one_eq_iff [Nontrivial R] {i j : ℕ} :
     (monomial i 1 : R[X]) = monomial j 1 ↔ i = j :=
   by
@@ -39,6 +45,12 @@ theorem monomial_one_eq_iff [Nontrivial R] {i j : ℕ} :
 instance [Nontrivial R] : Infinite R[X] :=
   Infinite.of_injective (fun i => monomial i 1) fun m n h => by simpa [monomial_one_eq_iff] using h
 
+/- warning: polynomial.card_support_le_one_iff_monomial -> Polynomial.card_support_le_one_iff_monomial is a dubious translation:
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+Case conversion may be inaccurate. Consider using '#align polynomial.card_support_le_one_iff_monomial Polynomial.card_support_le_one_iff_monomialₓ'. -/
 theorem card_support_le_one_iff_monomial {f : R[X]} :
     Finset.card f.support ≤ 1 ↔ ∃ n a, f = monomial n a :=
   by
@@ -60,8 +72,14 @@ theorem card_support_le_one_iff_monomial {f : R[X]} :
     exact support_monomial' _ _
 #align polynomial.card_support_le_one_iff_monomial Polynomial.card_support_le_one_iff_monomial
 
-theorem ringHom_ext {S} [Semiring S] {f g : R[X] →+* S} (h₁ : ∀ a, f (c a) = g (c a))
-    (h₂ : f x = g x) : f = g :=
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_inst_2)) f g)
+Case conversion may be inaccurate. Consider using '#align polynomial.ring_hom_ext Polynomial.ringHom_extₓ'. -/
+theorem ringHom_ext {S} [Semiring S] {f g : R[X] →+* S} (h₁ : ∀ a, f (C a) = g (C a))
+    (h₂ : f X = g X) : f = g :=
   by
   set f' := f.comp (to_finsupp_iso R).symm.toRingHom with hf'
   set g' := g.comp (to_finsupp_iso R).symm.toRingHom with hg'
@@ -84,9 +102,15 @@ theorem ringHom_ext {S} [Semiring S] {f g : R[X] →+* S} (h₁ : ∀ a, f (c a)
   rw [B, C, A]
 #align polynomial.ring_hom_ext Polynomial.ringHom_ext
 
+/- warning: polynomial.ring_hom_ext' -> Polynomial.ringHom_ext' is a dubious translation:
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+Case conversion may be inaccurate. Consider using '#align polynomial.ring_hom_ext' Polynomial.ringHom_ext'ₓ'. -/
 @[ext]
-theorem ringHom_ext' {S} [Semiring S] {f g : R[X] →+* S} (h₁ : f.comp c = g.comp c)
-    (h₂ : f x = g x) : f = g :=
+theorem ringHom_ext' {S} [Semiring S] {f g : R[X] →+* S} (h₁ : f.comp C = g.comp C)
+    (h₂ : f X = g X) : f = g :=
   ringHom_ext (RingHom.congr_fun h₁) h₂
 #align polynomial.ring_hom_ext' Polynomial.ringHom_ext'

220f71ba

bump to nightly-2023-02-21-16

mathlib commit https://github.com/leanprover-community/mathlib/commit/bd9851ca476957ea4549eb19b40e7b5ade9428cc

1107b979

Changes in mathlib4

mathlib3

mathlib4

220f71ba

move(Polynomial): Move out of Data (#11751)

Polynomial and MvPolynomial are algebraic objects, hence should be under Algebra (or at least not under Data)

56e439ec

Diff

@@ -3,7 +3,7 @@ Copyright (c) 2018 Chris Hughes. All rights reserved.
 Released under Apache 2.0 license as described in the file LICENSE.
 Authors: Chris Hughes, Johannes Hölzl, Scott Morrison, Jens Wagemaker
 -/
-import Mathlib.Data.Polynomial.Basic
+import Mathlib.Algebra.Polynomial.Basic
 
 #align_import data.polynomial.monomial from "leanprover-community/mathlib"@"220f71ba506c8958c9b41bd82226b3d06b0991e8"

220f71ba

chore(*): remove empty lines between variable statements (#11418)

Empty lines were removed by executing the following Python script twice

import os
import re


# Loop through each file in the repository
for dir_path, dirs, files in os.walk('.'):
  for filename in files:
    if filename.endswith('.lean'):
      file_path = os.path.join(dir_path, filename)

      # Open the file and read its contents
      with open(file_path, 'r') as file:
        content = file.read()

      # Use a regular expression to replace sequences of "variable" lines separated by empty lines
      # with sequences without empty lines
      modified_content = re.sub(r'(variable.*\n)\n(variable(?! .* in))', r'\1\2', content)

      # Write the modified content back to the file
      with open(file_path, 'w') as file:
        file.write(modified_content)

75c86f04

Diff

@@ -23,7 +23,6 @@ open Polynomial
 universe u
 
 variable {R : Type u} {a b : R} {m n : ℕ}
-
 variable [Semiring R] {p q r : R[X]}
 
 theorem monomial_one_eq_iff [Nontrivial R] {i j : ℕ} :

220f71ba

chore: prepare Lean version bump with explicit simp (#10999)

Co-authored-by: Scott Morrison <scott.morrison@gmail.com>

38bce757

Diff

@@ -65,7 +65,7 @@ theorem ringHom_ext {S} [Semiring S] {f g : R[X] →+* S} (h₁ : ∀ a, f (C a)
     -- Porting note: Was `ext; simp [..]; simpa [..] using h₂`.
     ext : 1
     · ext
-      simp [h₁, RingEquiv.toRingHom_eq_coe]
+      simp [f', g', h₁, RingEquiv.toRingHom_eq_coe]
     · refine MonoidHom.ext_mnat ?_
       simpa [RingEquiv.toRingHom_eq_coe] using h₂
   have B : f = f'.comp (toFinsuppIso R) := by

220f71ba

chore: Improve Finset lemma names (#8894)

Change a few lemma names that have historically bothered me.

Finset.card_le_of_subset → Finset.card_le_card
Multiset.card_le_of_le → Multiset.card_le_card
Multiset.card_lt_of_lt → Multiset.card_lt_card
Set.ncard_le_of_subset → Set.ncard_le_ncard
Finset.image_filter → Finset.filter_image
CompleteLattice.finset_sup_compact_of_compact → CompleteLattice.isCompactElement_finset_sup

7d3d6e43

Diff

@@ -53,7 +53,7 @@ theorem card_support_le_one_iff_monomial {f : R[X]} :
       simp [this, Ne.symm hi, coeff_monomial]
   · rintro ⟨n, a, rfl⟩
     rw [← Finset.card_singleton n]
-    apply Finset.card_le_of_subset
+    apply Finset.card_le_card
     exact support_monomial' _ _
 #align polynomial.card_support_le_one_iff_monomial Polynomial.card_support_le_one_iff_monomial

220f71ba

chore: script to replace headers with #align_import statements (#5979)

depends on: #5966

Co-authored-by: Eric Wieser <wieser.eric@gmail.com> Co-authored-by: Scott Morrison <scott.morrison@gmail.com>

89aa3a3b

Diff

@@ -2,14 +2,11 @@
 Copyright (c) 2018 Chris Hughes. All rights reserved.
 Released under Apache 2.0 license as described in the file LICENSE.
 Authors: Chris Hughes, Johannes Hölzl, Scott Morrison, Jens Wagemaker
-
-! This file was ported from Lean 3 source module data.polynomial.monomial
-! leanprover-community/mathlib commit 220f71ba506c8958c9b41bd82226b3d06b0991e8
-! Please do not edit these lines, except to modify the commit id
-! if you have ported upstream changes.
 -/
 import Mathlib.Data.Polynomial.Basic
 
+#align_import data.polynomial.monomial from "leanprover-community/mathlib"@"220f71ba506c8958c9b41bd82226b3d06b0991e8"
+
 /-!
 # Univariate monomials

220f71ba

feat: port Data.Polynomial.Monomial (#2623)

beaa0d2b

`data.polynomial.monomial` ⟷ `Mathlib.Data.Polynomial.Monomial`

Changes since the initial port

Changes in mathlib3

Changes in mathlib3port

Changes in mathlib4

Dependencies 8 + 379

data.polynomial.monomial ⟷ Mathlib.Data.Polynomial.Monomial

Changes since the initial port

Changes in mathlib3

Changes in mathlib3port

Changes in mathlib4

Dependencies 8 + 379

`data.polynomial.monomial` ⟷ `Mathlib.Data.Polynomial.Monomial`