algebra.category.Module.tannaka | 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

71150516

(last sync)

Changes in mathlib3port

mathlib3

mathlib3port

9d2f0748

bump to nightly-2024-04-06-08

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

e34029c9

Diff

@@ -3,7 +3,7 @@ Copyright (c) 2022 Scott Morrison. All rights reserved.
 Released under Apache 2.0 license as described in the file LICENSE.
 Authors: Scott Morrison
 -/
-import Algebra.Category.Module.Basic
+import Algebra.Category.ModuleCat.Basic
 import LinearAlgebra.Span
 
 #align_import algebra.category.Module.tannaka from "leanprover-community/mathlib"@"9d2f0748e6c50d7a2657c564b1ff2c695b39148d"

9d2f0748

bump to nightly-2023-09-24-06

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

5655435f

Diff

@@ -3,8 +3,8 @@ Copyright (c) 2022 Scott Morrison. All rights reserved.
 Released under Apache 2.0 license as described in the file LICENSE.
 Authors: Scott Morrison
 -/
-import Mathbin.Algebra.Category.Module.Basic
-import Mathbin.LinearAlgebra.Span
+import Algebra.Category.Module.Basic
+import LinearAlgebra.Span
 
 #align_import algebra.category.Module.tannaka from "leanprover-community/mathlib"@"9d2f0748e6c50d7a2657c564b1ff2c695b39148d"

9d2f0748

bump to nightly-2023-07-20-09

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

9c56d0dd

Diff

@@ -2,15 +2,12 @@
 Copyright (c) 2022 Scott Morrison. All rights reserved.
 Released under Apache 2.0 license as described in the file LICENSE.
 Authors: Scott Morrison
-
-! This file was ported from Lean 3 source module algebra.category.Module.tannaka
-! leanprover-community/mathlib commit 9d2f0748e6c50d7a2657c564b1ff2c695b39148d
-! Please do not edit these lines, except to modify the commit id
-! if you have ported upstream changes.
 -/
 import Mathbin.Algebra.Category.Module.Basic
 import Mathbin.LinearAlgebra.Span
 
+#align_import algebra.category.Module.tannaka from "leanprover-community/mathlib"@"9d2f0748e6c50d7a2657c564b1ff2c695b39148d"
+
 /-!
 # Tannaka duality for rings

9d2f0748

bump to nightly-2023-06-20-01

mathlib commit https://github.com/leanprover-community/mathlib/commit/2a0ce625dbb0ffbc7d1316597de0b25c1ec75303

9b351f8c

Diff

@@ -41,7 +41,7 @@ def ringEquivEndForget₂ (R : Type u) [Ring R] :
   invFun φ := φ.app (ModuleCat.of R R) (1 : R)
   left_inv := by intro r; simp
   right_inv := by
-    intro φ; ext (M x)
+    intro φ; ext M x
     simp only [DistribMulAction.toAddMonoidHom_apply]
     have w :=
       AddMonoidHom.congr_fun (φ.naturality (ModuleCat.asHomRight (LinearMap.toSpanSingleton R M x)))

9d2f0748

bump to nightly-2023-06-13-21

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

829520ac

Diff

@@ -27,6 +27,7 @@ universe u
 
 open CategoryTheory
 
+#print ringEquivEndForget₂ /-
 /-- An ingredient of Tannaka duality for rings:
 A ring `R` is equivalent to
 the endomorphisms of the additive forgetful functor `Module R ⥤ AddCommGroup`.
@@ -50,4 +51,5 @@ def ringEquivEndForget₂ (R : Type u) [Ring R] :
   map_add' := by intros; ext; simp [add_smul]
   map_mul' := by intros; ext; simpa using mul_smul _ _ _
 #align ring_equiv_End_forget₂ ringEquivEndForget₂
+-/

9d2f0748

bump to nightly-2023-06-01-16

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

b9c87c70

Diff

@@ -47,7 +47,7 @@ def ringEquivEndForget₂ (R : Type u) [Ring R] :
         (1 : R)
     convert w.symm
     exact (one_smul _ _).symm
-  map_add' := by intros ; ext; simp [add_smul]
-  map_mul' := by intros ; ext; simpa using mul_smul _ _ _
+  map_add' := by intros; ext; simp [add_smul]
+  map_mul' := by intros; ext; simpa using mul_smul _ _ _
 #align ring_equiv_End_forget₂ ringEquivEndForget₂

9d2f0748

bump to nightly-2023-05-28-06

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

ba5d8b97

Diff

@@ -27,9 +27,6 @@ universe u
 
 open CategoryTheory
 
-/- warning: ring_equiv_End_forget₂ -> ringEquivEndForget₂ is a dubious translation:
-<too large>
-Case conversion may be inaccurate. Consider using '#align ring_equiv_End_forget₂ ringEquivEndForget₂ₓ'. -/
 /-- An ingredient of Tannaka duality for rings:
 A ring `R` is equivalent to
 the endomorphisms of the additive forgetful functor `Module R ⥤ AddCommGroup`.

9d2f0748

bump to nightly-2023-05-28-04

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

6797a637

Diff

@@ -39,13 +39,9 @@ def ringEquivEndForget₂ (R : Type u) [Ring R] :
     where
   toFun r :=
     { app := fun M => by apply DistribMulAction.toAddMonoidHom M r
-      naturality' := fun M N f => by
-        ext
-        exact (f.map_smul _ _).symm }
+      naturality' := fun M N f => by ext; exact (f.map_smul _ _).symm }
   invFun φ := φ.app (ModuleCat.of R R) (1 : R)
-  left_inv := by
-    intro r
-    simp
+  left_inv := by intro r; simp
   right_inv := by
     intro φ; ext (M x)
     simp only [DistribMulAction.toAddMonoidHom_apply]
@@ -54,13 +50,7 @@ def ringEquivEndForget₂ (R : Type u) [Ring R] :
         (1 : R)
     convert w.symm
     exact (one_smul _ _).symm
-  map_add' := by
-    intros
-    ext
-    simp [add_smul]
-  map_mul' := by
-    intros
-    ext
-    simpa using mul_smul _ _ _
+  map_add' := by intros ; ext; simp [add_smul]
+  map_mul' := by intros ; ext; simpa using mul_smul _ _ _
 #align ring_equiv_End_forget₂ ringEquivEndForget₂

9d2f0748

bump to nightly-2023-05-28-03

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

6c6011cf

Diff

@@ -28,10 +28,7 @@ universe u
 open CategoryTheory
 
 /- warning: ring_equiv_End_forget₂ -> ringEquivEndForget₂ is a dubious translation:
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(NonUnitalNonAssocRing.toMul.{u1} R (NonAssocRing.toNonUnitalNonAssocRing.{u1} R (Ring.toNonAssocRing.{u1} R _inst_1))) (CategoryTheory.End.mul.{succ u1, succ u1} (CategoryTheory.AdditiveFunctor.{succ u1, succ u1, u1, u1} (ModuleCat.{u1, u1} R _inst_1) AddCommGroupCat.{u1} (ModuleCat.moduleCategory.{u1, u1} R _inst_1) instAddCommGroupCatLargeCategory.{u1} (ModuleCat.instPreadditiveModuleCatModuleCategory.{u1, u1} R _inst_1) AddCommGroupCat.instPreadditiveAddCommGroupCatInstAddCommGroupCatLargeCategory.{u1}) (CategoryTheory.Category.toCategoryStruct.{succ u1, succ u1} (CategoryTheory.AdditiveFunctor.{succ u1, succ u1, u1, u1} (ModuleCat.{u1, u1} R _inst_1) AddCommGroupCat.{u1} (ModuleCat.moduleCategory.{u1, u1} R _inst_1) instAddCommGroupCatLargeCategory.{u1} (ModuleCat.instPreadditiveModuleCatModuleCategory.{u1, u1} R _inst_1) AddCommGroupCat.instPreadditiveAddCommGroupCatInstAddCommGroupCatLargeCategory.{u1}) (CategoryTheory.instCategoryAdditiveFunctor.{succ u1, succ u1, u1, u1} 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(ModuleCat.forget₂_addCommGroupCat_additive.{u1, u1} R _inst_1))) (Distrib.toAdd.{u1} R (NonUnitalNonAssocSemiring.toDistrib.{u1} R (NonUnitalNonAssocRing.toNonUnitalNonAssocSemiring.{u1} R (NonAssocRing.toNonUnitalNonAssocRing.{u1} R (Ring.toNonAssocRing.{u1} R _inst_1))))) (Distrib.toAdd.{succ u1} (CategoryTheory.End.{succ u1, succ u1} (CategoryTheory.AdditiveFunctor.{succ u1, succ u1, u1, u1} (ModuleCat.{u1, u1} R _inst_1) AddCommGroupCat.{u1} (ModuleCat.moduleCategory.{u1, u1} R _inst_1) instAddCommGroupCatLargeCategory.{u1} (ModuleCat.instPreadditiveModuleCatModuleCategory.{u1, u1} R _inst_1) AddCommGroupCat.instPreadditiveAddCommGroupCatInstAddCommGroupCatLargeCategory.{u1}) (CategoryTheory.Category.toCategoryStruct.{succ u1, succ u1} (CategoryTheory.AdditiveFunctor.{succ u1, succ u1, u1, u1} (ModuleCat.{u1, u1} R _inst_1) AddCommGroupCat.{u1} (ModuleCat.moduleCategory.{u1, u1} R _inst_1) instAddCommGroupCatLargeCategory.{u1} (ModuleCat.instPreadditiveModuleCatModuleCategory.{u1, u1} R _inst_1) AddCommGroupCat.instPreadditiveAddCommGroupCatInstAddCommGroupCatLargeCategory.{u1}) (CategoryTheory.instCategoryAdditiveFunctor.{succ u1, succ u1, u1, u1} (ModuleCat.{u1, u1} R _inst_1) AddCommGroupCat.{u1} (ModuleCat.moduleCategory.{u1, u1} R _inst_1) instAddCommGroupCatLargeCategory.{u1} (ModuleCat.instPreadditiveModuleCatModuleCategory.{u1, u1} R _inst_1) AddCommGroupCat.instPreadditiveAddCommGroupCatInstAddCommGroupCatLargeCategory.{u1})) (CategoryTheory.AdditiveFunctor.of.{succ u1, succ u1, u1, u1} (ModuleCat.{u1, u1} R _inst_1) AddCommGroupCat.{u1} (ModuleCat.moduleCategory.{u1, u1} R _inst_1) instAddCommGroupCatLargeCategory.{u1} (ModuleCat.instPreadditiveModuleCatModuleCategory.{u1, u1} R _inst_1) AddCommGroupCat.instPreadditiveAddCommGroupCatInstAddCommGroupCatLargeCategory.{u1} (CategoryTheory.forget₂.{succ u1, succ u1, u1, u1, u1} (ModuleCat.{u1, u1} R _inst_1) AddCommGroupCat.{u1} (ModuleCat.moduleCategory.{u1, u1} R _inst_1) (ModuleCat.moduleConcreteCategory.{u1, u1} R _inst_1) instAddCommGroupCatLargeCategory.{u1} AddCommGroupCat.concreteCategory.{u1} (ModuleCat.hasForgetToAddCommGroup.{u1, u1} R _inst_1)) (ModuleCat.forget₂_addCommGroupCat_additive.{u1, u1} R _inst_1))) (NonUnitalNonAssocSemiring.toDistrib.{succ u1} (CategoryTheory.End.{succ u1, succ u1} (CategoryTheory.AdditiveFunctor.{succ u1, succ u1, u1, u1} (ModuleCat.{u1, u1} R _inst_1) AddCommGroupCat.{u1} (ModuleCat.moduleCategory.{u1, u1} R _inst_1) instAddCommGroupCatLargeCategory.{u1} (ModuleCat.instPreadditiveModuleCatModuleCategory.{u1, u1} R _inst_1) AddCommGroupCat.instPreadditiveAddCommGroupCatInstAddCommGroupCatLargeCategory.{u1}) (CategoryTheory.Category.toCategoryStruct.{succ u1, succ u1} (CategoryTheory.AdditiveFunctor.{succ u1, succ u1, u1, u1} (ModuleCat.{u1, u1} R _inst_1) AddCommGroupCat.{u1} (ModuleCat.moduleCategory.{u1, u1} R _inst_1) instAddCommGroupCatLargeCategory.{u1} (ModuleCat.instPreadditiveModuleCatModuleCategory.{u1, u1} R _inst_1) AddCommGroupCat.instPreadditiveAddCommGroupCatInstAddCommGroupCatLargeCategory.{u1}) (CategoryTheory.instCategoryAdditiveFunctor.{succ u1, succ u1, u1, u1} (ModuleCat.{u1, u1} R _inst_1) AddCommGroupCat.{u1} (ModuleCat.moduleCategory.{u1, u1} R _inst_1) instAddCommGroupCatLargeCategory.{u1} (ModuleCat.instPreadditiveModuleCatModuleCategory.{u1, u1} R _inst_1) AddCommGroupCat.instPreadditiveAddCommGroupCatInstAddCommGroupCatLargeCategory.{u1})) (CategoryTheory.AdditiveFunctor.of.{succ u1, succ u1, u1, u1} (ModuleCat.{u1, u1} R _inst_1) AddCommGroupCat.{u1} (ModuleCat.moduleCategory.{u1, u1} R _inst_1) instAddCommGroupCatLargeCategory.{u1} (ModuleCat.instPreadditiveModuleCatModuleCategory.{u1, u1} R _inst_1) AddCommGroupCat.instPreadditiveAddCommGroupCatInstAddCommGroupCatLargeCategory.{u1} (CategoryTheory.forget₂.{succ u1, succ u1, u1, u1, u1} (ModuleCat.{u1, u1} R _inst_1) AddCommGroupCat.{u1} (ModuleCat.moduleCategory.{u1, u1} R _inst_1) (ModuleCat.moduleConcreteCategory.{u1, u1} R _inst_1) instAddCommGroupCatLargeCategory.{u1} AddCommGroupCat.concreteCategory.{u1} (ModuleCat.hasForgetToAddCommGroup.{u1, u1} R _inst_1)) (ModuleCat.forget₂_addCommGroupCat_additive.{u1, u1} R _inst_1))) (NonUnitalNonAssocRing.toNonUnitalNonAssocSemiring.{succ u1} (CategoryTheory.End.{succ u1, succ u1} (CategoryTheory.AdditiveFunctor.{succ u1, succ u1, u1, u1} (ModuleCat.{u1, u1} R _inst_1) AddCommGroupCat.{u1} (ModuleCat.moduleCategory.{u1, u1} R _inst_1) instAddCommGroupCatLargeCategory.{u1} (ModuleCat.instPreadditiveModuleCatModuleCategory.{u1, u1} R _inst_1) AddCommGroupCat.instPreadditiveAddCommGroupCatInstAddCommGroupCatLargeCategory.{u1}) (CategoryTheory.Category.toCategoryStruct.{succ u1, succ u1} (CategoryTheory.AdditiveFunctor.{succ u1, succ u1, u1, u1} (ModuleCat.{u1, u1} R _inst_1) AddCommGroupCat.{u1} (ModuleCat.moduleCategory.{u1, u1} R _inst_1) instAddCommGroupCatLargeCategory.{u1} (ModuleCat.instPreadditiveModuleCatModuleCategory.{u1, u1} R _inst_1) AddCommGroupCat.instPreadditiveAddCommGroupCatInstAddCommGroupCatLargeCategory.{u1}) (CategoryTheory.instCategoryAdditiveFunctor.{succ u1, succ u1, u1, u1} (ModuleCat.{u1, u1} R _inst_1) AddCommGroupCat.{u1} (ModuleCat.moduleCategory.{u1, u1} R _inst_1) instAddCommGroupCatLargeCategory.{u1} (ModuleCat.instPreadditiveModuleCatModuleCategory.{u1, u1} R _inst_1) AddCommGroupCat.instPreadditiveAddCommGroupCatInstAddCommGroupCatLargeCategory.{u1})) (CategoryTheory.AdditiveFunctor.of.{succ u1, succ u1, u1, u1} (ModuleCat.{u1, u1} R _inst_1) AddCommGroupCat.{u1} (ModuleCat.moduleCategory.{u1, u1} R _inst_1) instAddCommGroupCatLargeCategory.{u1} (ModuleCat.instPreadditiveModuleCatModuleCategory.{u1, u1} R _inst_1) AddCommGroupCat.instPreadditiveAddCommGroupCatInstAddCommGroupCatLargeCategory.{u1} (CategoryTheory.forget₂.{succ u1, succ u1, u1, u1, u1} (ModuleCat.{u1, u1} R _inst_1) AddCommGroupCat.{u1} (ModuleCat.moduleCategory.{u1, u1} R _inst_1) (ModuleCat.moduleConcreteCategory.{u1, u1} R _inst_1) instAddCommGroupCatLargeCategory.{u1} AddCommGroupCat.concreteCategory.{u1} (ModuleCat.hasForgetToAddCommGroup.{u1, u1} R _inst_1)) (ModuleCat.forget₂_addCommGroupCat_additive.{u1, u1} R _inst_1))) (NonAssocRing.toNonUnitalNonAssocRing.{succ u1} (CategoryTheory.End.{succ u1, succ u1} (CategoryTheory.AdditiveFunctor.{succ u1, succ u1, u1, u1} (ModuleCat.{u1, u1} R _inst_1) AddCommGroupCat.{u1} (ModuleCat.moduleCategory.{u1, u1} R _inst_1) instAddCommGroupCatLargeCategory.{u1} (ModuleCat.instPreadditiveModuleCatModuleCategory.{u1, u1} R _inst_1) AddCommGroupCat.instPreadditiveAddCommGroupCatInstAddCommGroupCatLargeCategory.{u1}) (CategoryTheory.Category.toCategoryStruct.{succ u1, succ u1} (CategoryTheory.AdditiveFunctor.{succ u1, succ u1, u1, u1} (ModuleCat.{u1, u1} R _inst_1) AddCommGroupCat.{u1} (ModuleCat.moduleCategory.{u1, u1} R _inst_1) instAddCommGroupCatLargeCategory.{u1} (ModuleCat.instPreadditiveModuleCatModuleCategory.{u1, u1} R _inst_1) AddCommGroupCat.instPreadditiveAddCommGroupCatInstAddCommGroupCatLargeCategory.{u1}) (CategoryTheory.instCategoryAdditiveFunctor.{succ u1, succ u1, u1, u1} (ModuleCat.{u1, u1} R _inst_1) AddCommGroupCat.{u1} (ModuleCat.moduleCategory.{u1, u1} R _inst_1) instAddCommGroupCatLargeCategory.{u1} (ModuleCat.instPreadditiveModuleCatModuleCategory.{u1, u1} R _inst_1) AddCommGroupCat.instPreadditiveAddCommGroupCatInstAddCommGroupCatLargeCategory.{u1})) (CategoryTheory.AdditiveFunctor.of.{succ u1, succ u1, u1, u1} (ModuleCat.{u1, u1} R _inst_1) AddCommGroupCat.{u1} (ModuleCat.moduleCategory.{u1, u1} R _inst_1) instAddCommGroupCatLargeCategory.{u1} (ModuleCat.instPreadditiveModuleCatModuleCategory.{u1, u1} R _inst_1) AddCommGroupCat.instPreadditiveAddCommGroupCatInstAddCommGroupCatLargeCategory.{u1} (CategoryTheory.forget₂.{succ u1, succ u1, u1, u1, u1} (ModuleCat.{u1, u1} R _inst_1) AddCommGroupCat.{u1} (ModuleCat.moduleCategory.{u1, u1} R _inst_1) (ModuleCat.moduleConcreteCategory.{u1, u1} R _inst_1) instAddCommGroupCatLargeCategory.{u1} AddCommGroupCat.concreteCategory.{u1} (ModuleCat.hasForgetToAddCommGroup.{u1, u1} R _inst_1)) (ModuleCat.forget₂_addCommGroupCat_additive.{u1, u1} R _inst_1))) (Ring.toNonAssocRing.{succ u1} (CategoryTheory.End.{succ u1, succ u1} (CategoryTheory.AdditiveFunctor.{succ u1, succ u1, u1, u1} (ModuleCat.{u1, u1} R _inst_1) AddCommGroupCat.{u1} (ModuleCat.moduleCategory.{u1, u1} R _inst_1) instAddCommGroupCatLargeCategory.{u1} (ModuleCat.instPreadditiveModuleCatModuleCategory.{u1, u1} R _inst_1) AddCommGroupCat.instPreadditiveAddCommGroupCatInstAddCommGroupCatLargeCategory.{u1}) (CategoryTheory.Category.toCategoryStruct.{succ u1, succ u1} (CategoryTheory.AdditiveFunctor.{succ u1, succ u1, u1, u1} (ModuleCat.{u1, u1} R _inst_1) AddCommGroupCat.{u1} (ModuleCat.moduleCategory.{u1, u1} R _inst_1) instAddCommGroupCatLargeCategory.{u1} (ModuleCat.instPreadditiveModuleCatModuleCategory.{u1, u1} R _inst_1) AddCommGroupCat.instPreadditiveAddCommGroupCatInstAddCommGroupCatLargeCategory.{u1}) (CategoryTheory.instCategoryAdditiveFunctor.{succ u1, succ u1, u1, u1} (ModuleCat.{u1, u1} R _inst_1) AddCommGroupCat.{u1} (ModuleCat.moduleCategory.{u1, u1} R _inst_1) instAddCommGroupCatLargeCategory.{u1} (ModuleCat.instPreadditiveModuleCatModuleCategory.{u1, u1} R _inst_1) AddCommGroupCat.instPreadditiveAddCommGroupCatInstAddCommGroupCatLargeCategory.{u1})) (CategoryTheory.AdditiveFunctor.of.{succ u1, succ u1, u1, u1} (ModuleCat.{u1, u1} R _inst_1) AddCommGroupCat.{u1} (ModuleCat.moduleCategory.{u1, u1} R _inst_1) instAddCommGroupCatLargeCategory.{u1} (ModuleCat.instPreadditiveModuleCatModuleCategory.{u1, u1} R _inst_1) AddCommGroupCat.instPreadditiveAddCommGroupCatInstAddCommGroupCatLargeCategory.{u1} (CategoryTheory.forget₂.{succ u1, succ u1, u1, u1, u1} (ModuleCat.{u1, u1} R _inst_1) AddCommGroupCat.{u1} (ModuleCat.moduleCategory.{u1, u1} R _inst_1) (ModuleCat.moduleConcreteCategory.{u1, u1} R _inst_1) instAddCommGroupCatLargeCategory.{u1} AddCommGroupCat.concreteCategory.{u1} (ModuleCat.hasForgetToAddCommGroup.{u1, u1} R _inst_1)) (ModuleCat.forget₂_addCommGroupCat_additive.{u1, u1} R _inst_1))) (CategoryTheory.Preadditive.instRingEndToCategoryStruct.{succ u1, succ u1} (CategoryTheory.AdditiveFunctor.{succ u1, succ u1, u1, u1} (ModuleCat.{u1, u1} R _inst_1) AddCommGroupCat.{u1} (ModuleCat.moduleCategory.{u1, u1} R _inst_1) instAddCommGroupCatLargeCategory.{u1} (ModuleCat.instPreadditiveModuleCatModuleCategory.{u1, u1} R _inst_1) AddCommGroupCat.instPreadditiveAddCommGroupCatInstAddCommGroupCatLargeCategory.{u1}) (CategoryTheory.instCategoryAdditiveFunctor.{succ u1, succ u1, u1, u1} (ModuleCat.{u1, u1} R _inst_1) AddCommGroupCat.{u1} (ModuleCat.moduleCategory.{u1, u1} R _inst_1) instAddCommGroupCatLargeCategory.{u1} (ModuleCat.instPreadditiveModuleCatModuleCategory.{u1, u1} R _inst_1) AddCommGroupCat.instPreadditiveAddCommGroupCatInstAddCommGroupCatLargeCategory.{u1}) (CategoryTheory.instPreadditiveAdditiveFunctorInstCategoryAdditiveFunctor.{succ u1, succ u1, u1, u1} (ModuleCat.{u1, u1} R _inst_1) AddCommGroupCat.{u1} (ModuleCat.moduleCategory.{u1, u1} R _inst_1) instAddCommGroupCatLargeCategory.{u1} (ModuleCat.instPreadditiveModuleCatModuleCategory.{u1, u1} R _inst_1) AddCommGroupCat.instPreadditiveAddCommGroupCatInstAddCommGroupCatLargeCategory.{u1}) (CategoryTheory.AdditiveFunctor.of.{succ u1, succ u1, u1, u1} (ModuleCat.{u1, u1} R _inst_1) AddCommGroupCat.{u1} (ModuleCat.moduleCategory.{u1, u1} R _inst_1) instAddCommGroupCatLargeCategory.{u1} (ModuleCat.instPreadditiveModuleCatModuleCategory.{u1, u1} R _inst_1) AddCommGroupCat.instPreadditiveAddCommGroupCatInstAddCommGroupCatLargeCategory.{u1} (CategoryTheory.forget₂.{succ u1, succ u1, u1, u1, u1} (ModuleCat.{u1, u1} R _inst_1) AddCommGroupCat.{u1} (ModuleCat.moduleCategory.{u1, u1} R _inst_1) (ModuleCat.moduleConcreteCategory.{u1, u1} R _inst_1) instAddCommGroupCatLargeCategory.{u1} AddCommGroupCat.concreteCategory.{u1} (ModuleCat.hasForgetToAddCommGroup.{u1, u1} R _inst_1)) (ModuleCat.forget₂_addCommGroupCat_additive.{u1, u1} R _inst_1))))))))
+<too large>
 Case conversion may be inaccurate. Consider using '#align ring_equiv_End_forget₂ ringEquivEndForget₂ₓ'. -/
 /-- An ingredient of Tannaka duality for rings:
 A ring `R` is equivalent to

9d2f0748

bump to nightly-2023-05-12-14

mathlib commit https://github.com/leanprover-community/mathlib/commit/2f8347015b12b0864dfaf366ec4909eb70c78740

fab1af65

Diff

@@ -31,7 +31,7 @@ open CategoryTheory
 lean 3 declaration is
   forall (R : Type.{u1}) [_inst_1 : Ring.{u1} R], RingEquiv.{u1, succ u1} R (CategoryTheory.End.{succ u1, succ u1} (CategoryTheory.AdditiveFunctor.{succ u1, succ u1, u1, u1} (ModuleCat.{u1, u1} R _inst_1) AddCommGroupCat.{u1} (ModuleCat.moduleCategory.{u1, u1} R _inst_1) AddCommGroupCat.largeCategory.{u1} (ModuleCat.CategoryTheory.preadditive.{u1, u1} R _inst_1) AddCommGroupCat.CategoryTheory.preadditive.{u1}) (CategoryTheory.Category.toCategoryStruct.{succ u1, succ u1} (CategoryTheory.AdditiveFunctor.{succ u1, succ u1, u1, u1} (ModuleCat.{u1, u1} R _inst_1) AddCommGroupCat.{u1} (ModuleCat.moduleCategory.{u1, u1} R _inst_1) AddCommGroupCat.largeCategory.{u1} (ModuleCat.CategoryTheory.preadditive.{u1, u1} R _inst_1) AddCommGroupCat.CategoryTheory.preadditive.{u1}) (CategoryTheory.AdditiveFunctor.category.{succ u1, u1, u1, succ u1} (ModuleCat.{u1, u1} R _inst_1) AddCommGroupCat.{u1} (ModuleCat.moduleCategory.{u1, u1} R _inst_1) AddCommGroupCat.largeCategory.{u1} (ModuleCat.CategoryTheory.preadditive.{u1, u1} R _inst_1) AddCommGroupCat.CategoryTheory.preadditive.{u1})) (CategoryTheory.AdditiveFunctor.of.{succ u1, succ u1, u1, u1} (ModuleCat.{u1, u1} R _inst_1) AddCommGroupCat.{u1} (ModuleCat.moduleCategory.{u1, u1} R _inst_1) AddCommGroupCat.largeCategory.{u1} (ModuleCat.CategoryTheory.preadditive.{u1, u1} R _inst_1) AddCommGroupCat.CategoryTheory.preadditive.{u1} (CategoryTheory.forget₂.{succ u1, succ u1, u1, u1, u1} (ModuleCat.{u1, u1} R _inst_1) AddCommGroupCat.{u1} (ModuleCat.moduleCategory.{u1, u1} R _inst_1) (ModuleCat.moduleConcreteCategory.{u1, u1} R _inst_1) AddCommGroupCat.largeCategory.{u1} AddCommGroupCat.concreteCategory.{u1} (ModuleCat.hasForgetToAddCommGroup.{u1, u1} R _inst_1)) (ModuleCat.forget₂_addCommGroupCat_additive.{u1, u1} R _inst_1))) (Distrib.toHasMul.{u1} R (Ring.toDistrib.{u1} R _inst_1)) (Distrib.toHasAdd.{u1} R (Ring.toDistrib.{u1} R _inst_1)) (CategoryTheory.End.mul.{succ u1, succ u1} (CategoryTheory.AdditiveFunctor.{succ u1, succ u1, u1, u1} (ModuleCat.{u1, u1} R _inst_1) AddCommGroupCat.{u1} (ModuleCat.moduleCategory.{u1, u1} R _inst_1) AddCommGroupCat.largeCategory.{u1} (ModuleCat.CategoryTheory.preadditive.{u1, u1} R _inst_1) AddCommGroupCat.CategoryTheory.preadditive.{u1}) (CategoryTheory.Category.toCategoryStruct.{succ u1, succ u1} (CategoryTheory.AdditiveFunctor.{succ u1, succ u1, u1, u1} (ModuleCat.{u1, u1} R _inst_1) AddCommGroupCat.{u1} (ModuleCat.moduleCategory.{u1, u1} R _inst_1) AddCommGroupCat.largeCategory.{u1} (ModuleCat.CategoryTheory.preadditive.{u1, u1} R _inst_1) AddCommGroupCat.CategoryTheory.preadditive.{u1}) (CategoryTheory.AdditiveFunctor.category.{succ u1, u1, u1, succ u1} (ModuleCat.{u1, u1} R _inst_1) AddCommGroupCat.{u1} (ModuleCat.moduleCategory.{u1, u1} R _inst_1) AddCommGroupCat.largeCategory.{u1} (ModuleCat.CategoryTheory.preadditive.{u1, u1} R _inst_1) AddCommGroupCat.CategoryTheory.preadditive.{u1})) 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 but is expected to have type
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+  forall (R : Type.{u1}) [_inst_1 : Ring.{u1} R], RingEquiv.{u1, succ u1} R (CategoryTheory.End.{succ u1, succ u1} (CategoryTheory.AdditiveFunctor.{succ u1, succ u1, u1, u1} (ModuleCat.{u1, u1} R _inst_1) AddCommGroupCat.{u1} (ModuleCat.moduleCategory.{u1, u1} R _inst_1) instAddCommGroupCatLargeCategory.{u1} (ModuleCat.instPreadditiveModuleCatModuleCategory.{u1, u1} R _inst_1) AddCommGroupCat.instPreadditiveAddCommGroupCatInstAddCommGroupCatLargeCategory.{u1}) (CategoryTheory.Category.toCategoryStruct.{succ u1, succ u1} (CategoryTheory.AdditiveFunctor.{succ u1, succ u1, u1, u1} (ModuleCat.{u1, u1} R _inst_1) AddCommGroupCat.{u1} (ModuleCat.moduleCategory.{u1, u1} R _inst_1) instAddCommGroupCatLargeCategory.{u1} (ModuleCat.instPreadditiveModuleCatModuleCategory.{u1, u1} R _inst_1) AddCommGroupCat.instPreadditiveAddCommGroupCatInstAddCommGroupCatLargeCategory.{u1}) (CategoryTheory.instCategoryAdditiveFunctor.{succ u1, succ u1, u1, u1} (ModuleCat.{u1, u1} R _inst_1) AddCommGroupCat.{u1} 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(NonUnitalNonAssocRing.toMul.{u1} R (NonAssocRing.toNonUnitalNonAssocRing.{u1} R (Ring.toNonAssocRing.{u1} R _inst_1))) (CategoryTheory.End.mul.{succ u1, succ u1} (CategoryTheory.AdditiveFunctor.{succ u1, succ u1, u1, u1} (ModuleCat.{u1, u1} R _inst_1) AddCommGroupCat.{u1} (ModuleCat.moduleCategory.{u1, u1} R _inst_1) instAddCommGroupCatLargeCategory.{u1} (ModuleCat.instPreadditiveModuleCatModuleCategory.{u1, u1} R _inst_1) AddCommGroupCat.instPreadditiveAddCommGroupCatInstAddCommGroupCatLargeCategory.{u1}) (CategoryTheory.Category.toCategoryStruct.{succ u1, succ u1} (CategoryTheory.AdditiveFunctor.{succ u1, succ u1, u1, u1} (ModuleCat.{u1, u1} R _inst_1) AddCommGroupCat.{u1} (ModuleCat.moduleCategory.{u1, u1} R _inst_1) instAddCommGroupCatLargeCategory.{u1} (ModuleCat.instPreadditiveModuleCatModuleCategory.{u1, u1} R _inst_1) AddCommGroupCat.instPreadditiveAddCommGroupCatInstAddCommGroupCatLargeCategory.{u1}) (CategoryTheory.instCategoryAdditiveFunctor.{succ u1, succ u1, u1, u1} 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u1} R _inst_1) AddCommGroupCat.instPreadditiveAddCommGroupCatInstAddCommGroupCatLargeCategory.{u1}) (CategoryTheory.instCategoryAdditiveFunctor.{succ u1, succ u1, u1, u1} (ModuleCat.{u1, u1} R _inst_1) AddCommGroupCat.{u1} (ModuleCat.moduleCategory.{u1, u1} R _inst_1) instAddCommGroupCatLargeCategory.{u1} (ModuleCat.instPreadditiveModuleCatModuleCategory.{u1, u1} R _inst_1) AddCommGroupCat.instPreadditiveAddCommGroupCatInstAddCommGroupCatLargeCategory.{u1})) (CategoryTheory.AdditiveFunctor.of.{succ u1, succ u1, u1, u1} (ModuleCat.{u1, u1} R _inst_1) AddCommGroupCat.{u1} (ModuleCat.moduleCategory.{u1, u1} R _inst_1) instAddCommGroupCatLargeCategory.{u1} (ModuleCat.instPreadditiveModuleCatModuleCategory.{u1, u1} R _inst_1) AddCommGroupCat.instPreadditiveAddCommGroupCatInstAddCommGroupCatLargeCategory.{u1} (CategoryTheory.forget₂.{succ u1, succ u1, u1, u1, u1} (ModuleCat.{u1, u1} R _inst_1) AddCommGroupCat.{u1} (ModuleCat.moduleCategory.{u1, u1} R _inst_1) 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u1} R _inst_1) AddCommGroupCat.instPreadditiveAddCommGroupCatInstAddCommGroupCatLargeCategory.{u1}) (CategoryTheory.instCategoryAdditiveFunctor.{succ u1, succ u1, u1, u1} (ModuleCat.{u1, u1} R _inst_1) AddCommGroupCat.{u1} (ModuleCat.moduleCategory.{u1, u1} R _inst_1) instAddCommGroupCatLargeCategory.{u1} (ModuleCat.instPreadditiveModuleCatModuleCategory.{u1, u1} R _inst_1) AddCommGroupCat.instPreadditiveAddCommGroupCatInstAddCommGroupCatLargeCategory.{u1})) (CategoryTheory.AdditiveFunctor.of.{succ u1, succ u1, u1, u1} (ModuleCat.{u1, u1} R _inst_1) AddCommGroupCat.{u1} (ModuleCat.moduleCategory.{u1, u1} R _inst_1) instAddCommGroupCatLargeCategory.{u1} (ModuleCat.instPreadditiveModuleCatModuleCategory.{u1, u1} R _inst_1) AddCommGroupCat.instPreadditiveAddCommGroupCatInstAddCommGroupCatLargeCategory.{u1} (CategoryTheory.forget₂.{succ u1, succ u1, u1, u1, u1} (ModuleCat.{u1, u1} R _inst_1) AddCommGroupCat.{u1} (ModuleCat.moduleCategory.{u1, u1} R _inst_1) (ModuleCat.moduleConcreteCategory.{u1, u1} R _inst_1) instAddCommGroupCatLargeCategory.{u1} AddCommGroupCat.concreteCategory.{u1} (ModuleCat.hasForgetToAddCommGroup.{u1, u1} R _inst_1)) (ModuleCat.forget₂_addCommGroupCat_additive.{u1, u1} R _inst_1))) (NonUnitalNonAssocRing.toNonUnitalNonAssocSemiring.{succ u1} (CategoryTheory.End.{succ u1, succ u1} (CategoryTheory.AdditiveFunctor.{succ u1, succ u1, u1, u1} (ModuleCat.{u1, u1} R _inst_1) AddCommGroupCat.{u1} (ModuleCat.moduleCategory.{u1, u1} R _inst_1) instAddCommGroupCatLargeCategory.{u1} (ModuleCat.instPreadditiveModuleCatModuleCategory.{u1, u1} R _inst_1) AddCommGroupCat.instPreadditiveAddCommGroupCatInstAddCommGroupCatLargeCategory.{u1}) (CategoryTheory.Category.toCategoryStruct.{succ u1, succ u1} (CategoryTheory.AdditiveFunctor.{succ u1, succ u1, u1, u1} (ModuleCat.{u1, u1} R _inst_1) AddCommGroupCat.{u1} (ModuleCat.moduleCategory.{u1, u1} R _inst_1) instAddCommGroupCatLargeCategory.{u1} 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AddCommGroupCat.instPreadditiveAddCommGroupCatInstAddCommGroupCatLargeCategory.{u1}) (CategoryTheory.instPreadditiveAdditiveFunctorInstCategoryAdditiveFunctor.{succ u1, succ u1, u1, u1} (ModuleCat.{u1, u1} R _inst_1) AddCommGroupCat.{u1} (ModuleCat.moduleCategory.{u1, u1} R _inst_1) instAddCommGroupCatLargeCategory.{u1} (ModuleCat.instPreadditiveModuleCatModuleCategory.{u1, u1} R _inst_1) AddCommGroupCat.instPreadditiveAddCommGroupCatInstAddCommGroupCatLargeCategory.{u1}) (CategoryTheory.AdditiveFunctor.of.{succ u1, succ u1, u1, u1} (ModuleCat.{u1, u1} R _inst_1) AddCommGroupCat.{u1} (ModuleCat.moduleCategory.{u1, u1} R _inst_1) instAddCommGroupCatLargeCategory.{u1} (ModuleCat.instPreadditiveModuleCatModuleCategory.{u1, u1} R _inst_1) AddCommGroupCat.instPreadditiveAddCommGroupCatInstAddCommGroupCatLargeCategory.{u1} (CategoryTheory.forget₂.{succ u1, succ u1, u1, u1, u1} (ModuleCat.{u1, u1} R _inst_1) AddCommGroupCat.{u1} (ModuleCat.moduleCategory.{u1, u1} R _inst_1) (ModuleCat.moduleConcreteCategory.{u1, u1} R _inst_1) instAddCommGroupCatLargeCategory.{u1} AddCommGroupCat.concreteCategory.{u1} (ModuleCat.hasForgetToAddCommGroup.{u1, u1} R _inst_1)) (ModuleCat.forget₂_addCommGroupCat_additive.{u1, u1} R _inst_1))))))))
 Case conversion may be inaccurate. Consider using '#align ring_equiv_End_forget₂ ringEquivEndForget₂ₓ'. -/
 /-- An ingredient of Tannaka duality for rings:
 A ring `R` is equivalent to

9d2f0748

bump to nightly-2023-04-28-02

mathlib commit https://github.com/leanprover-community/mathlib/commit/fa78268d4d77cb2b2fbc89f0527e2e7807763780

473bb540

Diff

@@ -4,7 +4,7 @@ Released under Apache 2.0 license as described in the file LICENSE.
 Authors: Scott Morrison
 
 ! This file was ported from Lean 3 source module algebra.category.Module.tannaka
-! leanprover-community/mathlib commit 71150516f28d9826c7341f8815b31f7d8770c212
+! leanprover-community/mathlib commit 9d2f0748e6c50d7a2657c564b1ff2c695b39148d
 ! Please do not edit these lines, except to modify the commit id
 ! if you have ported upstream changes.
 -/
@@ -14,6 +14,9 @@ import Mathbin.LinearAlgebra.Span
 /-!
 # Tannaka duality for rings
 
+> THIS FILE IS SYNCHRONIZED WITH MATHLIB4.
+> Any changes to this file require a corresponding PR to mathlib4.
+
 A ring `R` is equivalent to
 the endomorphisms of the additive forgetful functor `Module R ⥤ AddCommGroup`.

71150516

bump to nightly-2023-04-25-20

mathlib commit https://github.com/leanprover-community/mathlib/commit/2651125b48fc5c170ab1111afd0817c903b1fc6c

56c36841

Diff

@@ -24,6 +24,12 @@ universe u
 
 open CategoryTheory
 
+/- warning: ring_equiv_End_forget₂ -> ringEquivEndForget₂ is a dubious translation:
+lean 3 declaration is
+  forall (R : Type.{u1}) [_inst_1 : Ring.{u1} R], RingEquiv.{u1, succ u1} R (CategoryTheory.End.{succ u1, succ u1} (CategoryTheory.AdditiveFunctor.{succ u1, succ u1, u1, u1} (ModuleCat.{u1, u1} R _inst_1) AddCommGroupCat.{u1} (ModuleCat.moduleCategory.{u1, u1} R _inst_1) AddCommGroupCat.largeCategory.{u1} (ModuleCat.CategoryTheory.preadditive.{u1, u1} R _inst_1) AddCommGroupCat.CategoryTheory.preadditive.{u1}) (CategoryTheory.Category.toCategoryStruct.{succ u1, succ u1} (CategoryTheory.AdditiveFunctor.{succ u1, succ u1, u1, u1} (ModuleCat.{u1, u1} R _inst_1) AddCommGroupCat.{u1} (ModuleCat.moduleCategory.{u1, u1} R _inst_1) AddCommGroupCat.largeCategory.{u1} (ModuleCat.CategoryTheory.preadditive.{u1, u1} R _inst_1) AddCommGroupCat.CategoryTheory.preadditive.{u1}) (CategoryTheory.AdditiveFunctor.category.{succ u1, u1, u1, succ u1} (ModuleCat.{u1, u1} R _inst_1) AddCommGroupCat.{u1} (ModuleCat.moduleCategory.{u1, u1} R _inst_1) AddCommGroupCat.largeCategory.{u1} 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+but is expected to have type
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(ModuleCat.moduleCategory.{u1, u1} R _inst_1) AddCommGroupCat.largeCategory.{u1} (ModuleCat.instPreadditiveModuleCatModuleCategory.{u1, u1} R _inst_1) AddCommGroupCat.instPreadditiveAddCommGroupCatLargeCategory.{u1}) (CategoryTheory.Category.toCategoryStruct.{succ u1, succ u1} (CategoryTheory.AdditiveFunctor.{succ u1, succ u1, u1, u1} (ModuleCat.{u1, u1} R _inst_1) AddCommGroupCat.{u1} (ModuleCat.moduleCategory.{u1, u1} R _inst_1) AddCommGroupCat.largeCategory.{u1} (ModuleCat.instPreadditiveModuleCatModuleCategory.{u1, u1} R _inst_1) AddCommGroupCat.instPreadditiveAddCommGroupCatLargeCategory.{u1}) (CategoryTheory.instCategoryAdditiveFunctor.{succ u1, succ u1, u1, u1} (ModuleCat.{u1, u1} R _inst_1) AddCommGroupCat.{u1} (ModuleCat.moduleCategory.{u1, u1} R _inst_1) AddCommGroupCat.largeCategory.{u1} (ModuleCat.instPreadditiveModuleCatModuleCategory.{u1, u1} R _inst_1) AddCommGroupCat.instPreadditiveAddCommGroupCatLargeCategory.{u1})) (CategoryTheory.AdditiveFunctor.of.{succ u1, succ u1, 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_inst_1) AddCommGroupCat.instPreadditiveAddCommGroupCatLargeCategory.{u1}) (CategoryTheory.Category.toCategoryStruct.{succ u1, succ u1} (CategoryTheory.AdditiveFunctor.{succ u1, succ u1, u1, u1} (ModuleCat.{u1, u1} R _inst_1) AddCommGroupCat.{u1} (ModuleCat.moduleCategory.{u1, u1} R _inst_1) AddCommGroupCat.largeCategory.{u1} (ModuleCat.instPreadditiveModuleCatModuleCategory.{u1, u1} R _inst_1) AddCommGroupCat.instPreadditiveAddCommGroupCatLargeCategory.{u1}) (CategoryTheory.instCategoryAdditiveFunctor.{succ u1, succ u1, u1, u1} (ModuleCat.{u1, u1} R _inst_1) AddCommGroupCat.{u1} (ModuleCat.moduleCategory.{u1, u1} R _inst_1) AddCommGroupCat.largeCategory.{u1} (ModuleCat.instPreadditiveModuleCatModuleCategory.{u1, u1} R _inst_1) AddCommGroupCat.instPreadditiveAddCommGroupCatLargeCategory.{u1})) (CategoryTheory.AdditiveFunctor.of.{succ u1, succ u1, u1, u1} (ModuleCat.{u1, u1} R _inst_1) AddCommGroupCat.{u1} (ModuleCat.moduleCategory.{u1, u1} R _inst_1) AddCommGroupCat.largeCategory.{u1} 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+Case conversion may be inaccurate. Consider using '#align ring_equiv_End_forget₂ ringEquivEndForget₂ₓ'. -/
 /-- An ingredient of Tannaka duality for rings:
 A ring `R` is equivalent to
 the endomorphisms of the additive forgetful functor `Module R ⥤ AddCommGroup`.

71150516

bump to nightly-2023-02-21-16

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

1107b979

Changes in mathlib4

mathlib3

mathlib4

71150516

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

@@ -2,15 +2,12 @@
 Copyright (c) 2022 Scott Morrison. All rights reserved.
 Released under Apache 2.0 license as described in the file LICENSE.
 Authors: Scott Morrison
-
-! This file was ported from Lean 3 source module algebra.category.Module.tannaka
-! leanprover-community/mathlib commit 71150516f28d9826c7341f8815b31f7d8770c212
-! Please do not edit these lines, except to modify the commit id
-! if you have ported upstream changes.
 -/
 import Mathlib.Algebra.Category.ModuleCat.Basic
 import Mathlib.LinearAlgebra.Span
 
+#align_import algebra.category.Module.tannaka from "leanprover-community/mathlib"@"71150516f28d9826c7341f8815b31f7d8770c212"
+
 /-!
 # Tannaka duality for rings

71150516

chore: add @[ext] lemmas for NatTrans synonyms (#5228)

Co-authored-by: Scott Morrison <scott.morrison@anu.edu.au>

5ed7d916

Diff

@@ -49,17 +49,15 @@ def ringEquivEndForget₂ (R : Type u) [Ring R] :
   map_add' := by
     intros
     apply NatTrans.ext
-    ext1
-    dsimp
     ext
+    dsimp
     simp only [AddCommGroupCat.ofHom_apply, DistribMulAction.toAddMonoidHom_apply, add_smul]
     rfl
   map_mul' := by
     intros
     apply NatTrans.ext
-    ext1
-    dsimp
     ext
+    dsimp
     simp only [AddCommGroupCat.ofHom_apply, DistribMulAction.toAddMonoidHom_apply, mul_smul]
     rfl

71150516

chore: reenable eta, bump to nightly 2023-05-16 (#3414)

Now that leanprover/lean4#2210 has been merged, this PR:

removes all the set_option synthInstance.etaExperiment true commands (and some etaExperiment% term elaborators)
removes many but not quite all set_option maxHeartbeats commands
makes various other changes required to cope with leanprover/lean4#2210.

Co-authored-by: Scott Morrison <scott.morrison@anu.edu.au> Co-authored-by: Scott Morrison <scott.morrison@gmail.com> Co-authored-by: Matthew Ballard <matt@mrb.email>

a6e1045f

Diff

@@ -23,7 +23,6 @@ universe u
 
 open CategoryTheory
 
-set_option synthInstance.etaExperiment true in
 /-- An ingredient of Tannaka duality for rings:
 A ring `R` is equivalent to
 the endomorphisms of the additive forgetful functor `Module R ⥤ AddCommGroup`.

71150516

chore: refactor of concrete categories (#3900)

I think the ports

https://github.com/leanprover-community/mathlib4/pull/2902 (MonCat)
https://github.com/leanprover-community/mathlib4/pull/3036 (GroupCat)
https://github.com/leanprover-community/mathlib4/pull/3260 (ModuleCat)

didn't quite get things right, and also have some variation between them. This PR tries to straighten things out.

Major changes:

Have the coercion to type be via X.\a, and put attribute @[coe] on this.

Make sure the coercion from morphisms to functions means that simp lemmas about the underlying bundled morphisms apply directly.

This means we drop lemmas like

lemma Hom.map_mul {X Y : MonCat} (f : X ⟶ Y) (x y : X) : ((forget MonCat).map f) (x * y) = f x * f y

But at the expense of adding lemmas like

lemma coe_comp {X Y Z : MonCat} {f : X ⟶ Y} {g : Y ⟶ Z} : (f ≫ g : X → Z) = g ∘ f := rfl

Overall I'm pretty happy, and it allows me to unstick the long stuck https://github.com/leanprover-community/mathlib4/pull/3105.

This is not everything I want to do to refactor these files, but once I was satisfied that I can move forward with RingCat, I want to get this merged so we can unblock porting progress. I'll promise to come back to this soon! :-)

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

237c33e0

Diff

@@ -39,9 +39,7 @@ def ringEquivEndForget₂ (R : Type u) [Ring R] :
   invFun φ := φ.app (ModuleCat.of R R) (1 : R)
   left_inv := by
     intro r
-    dsimp
-    erw [AddCommGroupCat.ofHom_apply]
-    simp only [DistribMulAction.toAddMonoidHom_apply, smul_eq_mul, mul_one]
+    simp
   right_inv := by
     intro φ
     apply NatTrans.ext

71150516

feat: port Algebra.Category.Module.Tannaka (#3645)

43df90a8

`algebra.category.Module.tannaka` ⟷ `Mathlib.Algebra.Category.ModuleCat.Tannaka`

Changes since the initial port

Changes in mathlib3

Changes in mathlib3port

Changes in mathlib4

Dependencies 8 + 468

algebra.category.Module.tannaka ⟷ Mathlib.Algebra.Category.ModuleCat.Tannaka

Changes since the initial port

Changes in mathlib3

Changes in mathlib3port

Changes in mathlib4

Dependencies 8 + 468

`algebra.category.Module.tannaka` ⟷ `Mathlib.Algebra.Category.ModuleCat.Tannaka`