algebra.category.Group.Z_Module_equivalence

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

bf1b813e

(last sync)

Changes in mathlib3port

mathlib3

mathlib3port

ef553359

bump to nightly-2024-04-29-08

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

6607d135

Diff

@@ -28,9 +28,9 @@ universe u
 
 namespace ModuleCat
 
-#print ModuleCat.forget₂AddCommGroupFull /-
+#print ModuleCat.forget₂_addCommGroup_full /-
 /-- The forgetful functor from `ℤ` modules to `AddCommGroup` is full. -/
-instance forget₂AddCommGroupFull :
+instance forget₂_addCommGroup_full :
     CategoryTheory.Functor.Full (forget₂ (ModuleCat ℤ) AddCommGroupCat.{u})
     where preimage A B
     f :=-- `add_monoid_hom.to_int_linear_map` doesn't work here because `A` and `B` are not definitionally
@@ -39,7 +39,7 @@ instance forget₂AddCommGroupFull :
       map_add' := AddMonoidHom.map_add f
       map_smul' := fun n x => by
         rw [int_smul_eq_zsmul, int_smul_eq_zsmul, map_zsmul, RingHom.id_apply] }
-#align Module.forget₂_AddCommGroup_full ModuleCat.forget₂AddCommGroupFull
+#align Module.forget₂_AddCommGroup_full ModuleCat.forget₂_addCommGroup_full
 -/
 
 #print ModuleCat.forget₂_addCommGroupCat_essSurj /-

ef553359

bump to nightly-2024-04-14-09

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

f736ea6b

Diff

@@ -30,7 +30,8 @@ namespace ModuleCat
 
 #print ModuleCat.forget₂AddCommGroupFull /-
 /-- The forgetful functor from `ℤ` modules to `AddCommGroup` is full. -/
-instance forget₂AddCommGroupFull : Full (forget₂ (ModuleCat ℤ) AddCommGroupCat.{u})
+instance forget₂AddCommGroupFull :
+    CategoryTheory.Functor.Full (forget₂ (ModuleCat ℤ) AddCommGroupCat.{u})
     where preimage A B
     f :=-- `add_monoid_hom.to_int_linear_map` doesn't work here because `A` and `B` are not definitionally
     -- equal to the canonical `add_comm_group.int_module` module instances it expects.
@@ -43,7 +44,8 @@ instance forget₂AddCommGroupFull : Full (forget₂ (ModuleCat ℤ) AddCommGrou
 
 #print ModuleCat.forget₂_addCommGroupCat_essSurj /-
 /-- The forgetful functor from `ℤ` modules to `AddCommGroup` is essentially surjective. -/
-instance forget₂_addCommGroupCat_essSurj : EssSurj (forget₂ (ModuleCat ℤ) AddCommGroupCat.{u})
+instance forget₂_addCommGroupCat_essSurj :
+    CategoryTheory.Functor.EssSurj (forget₂ (ModuleCat ℤ) AddCommGroupCat.{u})
     where mem_essImage A :=
     ⟨ModuleCat.of ℤ A,
       ⟨{  Hom := 𝟙 A
@@ -53,8 +55,9 @@ instance forget₂_addCommGroupCat_essSurj : EssSurj (forget₂ (ModuleCat ℤ)
 
 #print ModuleCat.forget₂AddCommGroupIsEquivalence /-
 noncomputable instance forget₂AddCommGroupIsEquivalence :
-    IsEquivalence (forget₂ (ModuleCat ℤ) AddCommGroupCat.{u}) :=
-  Equivalence.ofFullyFaithfullyEssSurj (forget₂ (ModuleCat ℤ) AddCommGroupCat)
+    CategoryTheory.Functor.IsEquivalence (forget₂ (ModuleCat ℤ) AddCommGroupCat.{u}) :=
+  CategoryTheory.Functor.IsEquivalence.ofFullyFaithfullyEssSurj
+    (forget₂ (ModuleCat ℤ) AddCommGroupCat)
 #align Module.forget₂_AddCommGroup_is_equivalence ModuleCat.forget₂AddCommGroupIsEquivalence
 -/

ef553359

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) 2020 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
 
 #align_import algebra.category.Group.Z_Module_equivalence from "leanprover-community/mathlib"@"ef55335933293309ff8c0b1d20ffffeecbe5c39f"

ef553359

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) 2020 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 Algebra.Category.Module.Basic
 
 #align_import algebra.category.Group.Z_Module_equivalence from "leanprover-community/mathlib"@"ef55335933293309ff8c0b1d20ffffeecbe5c39f"

ef553359

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) 2020 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.Group.Z_Module_equivalence
-! leanprover-community/mathlib commit ef55335933293309ff8c0b1d20ffffeecbe5c39f
-! Please do not edit these lines, except to modify the commit id
-! if you have ported upstream changes.
 -/
 import Mathbin.Algebra.Category.Module.Basic
 
+#align_import algebra.category.Group.Z_Module_equivalence from "leanprover-community/mathlib"@"ef55335933293309ff8c0b1d20ffffeecbe5c39f"
+
 /-!
 > THIS FILE IS SYNCHRONIZED WITH MATHLIB4.
 > Any changes to this file require a corresponding PR to mathlib4.

ef553359

bump to nightly-2023-06-13-21

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

829520ac

Diff

@@ -31,6 +31,7 @@ universe u
 
 namespace ModuleCat
 
+#print ModuleCat.forget₂AddCommGroupFull /-
 /-- The forgetful functor from `ℤ` modules to `AddCommGroup` is full. -/
 instance forget₂AddCommGroupFull : Full (forget₂ (ModuleCat ℤ) AddCommGroupCat.{u})
     where preimage A B
@@ -41,7 +42,9 @@ instance forget₂AddCommGroupFull : Full (forget₂ (ModuleCat ℤ) AddCommGrou
       map_smul' := fun n x => by
         rw [int_smul_eq_zsmul, int_smul_eq_zsmul, map_zsmul, RingHom.id_apply] }
 #align Module.forget₂_AddCommGroup_full ModuleCat.forget₂AddCommGroupFull
+-/
 
+#print ModuleCat.forget₂_addCommGroupCat_essSurj /-
 /-- The forgetful functor from `ℤ` modules to `AddCommGroup` is essentially surjective. -/
 instance forget₂_addCommGroupCat_essSurj : EssSurj (forget₂ (ModuleCat ℤ) AddCommGroupCat.{u})
     where mem_essImage A :=
@@ -49,11 +52,14 @@ instance forget₂_addCommGroupCat_essSurj : EssSurj (forget₂ (ModuleCat ℤ)
       ⟨{  Hom := 𝟙 A
           inv := 𝟙 A }⟩⟩
 #align Module.forget₂_AddCommGroup_ess_surj ModuleCat.forget₂_addCommGroupCat_essSurj
+-/
 
+#print ModuleCat.forget₂AddCommGroupIsEquivalence /-
 noncomputable instance forget₂AddCommGroupIsEquivalence :
     IsEquivalence (forget₂ (ModuleCat ℤ) AddCommGroupCat.{u}) :=
   Equivalence.ofFullyFaithfullyEssSurj (forget₂ (ModuleCat ℤ) AddCommGroupCat)
 #align Module.forget₂_AddCommGroup_is_equivalence ModuleCat.forget₂AddCommGroupIsEquivalence
+-/
 
 end ModuleCat

ef553359

bump to nightly-2023-05-28-06

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

ba5d8b97

Diff

@@ -31,12 +31,6 @@ universe u
 
 namespace ModuleCat
 
-/- warning: Module.forget₂_AddCommGroup_full -> ModuleCat.forget₂AddCommGroupFull is a dubious translation:
-lean 3 declaration is
-  CategoryTheory.Full.{u1, u1, succ u1, succ u1} (ModuleCat.{u1, 0} Int Int.ring) (ModuleCat.moduleCategory.{u1, 0} Int Int.ring) AddCommGroupCat.{u1} AddCommGroupCat.largeCategory.{u1} (CategoryTheory.forget₂.{succ u1, succ u1, u1, u1, u1} (ModuleCat.{u1, 0} Int Int.ring) AddCommGroupCat.{u1} (ModuleCat.moduleCategory.{u1, 0} Int Int.ring) (ModuleCat.moduleConcreteCategory.{u1, 0} Int Int.ring) AddCommGroupCat.largeCategory.{u1} AddCommGroupCat.concreteCategory.{u1} (ModuleCat.hasForgetToAddCommGroup.{0, u1} Int Int.ring))
-but is expected to have type
-  CategoryTheory.Full.{u1, u1, succ u1, succ u1} (ModuleCat.{u1, 0} Int Int.instRingInt) (ModuleCat.moduleCategory.{u1, 0} Int Int.instRingInt) AddCommGroupCat.{u1} instAddCommGroupCatLargeCategory.{u1} (CategoryTheory.forget₂.{succ u1, succ u1, u1, u1, u1} (ModuleCat.{u1, 0} Int Int.instRingInt) AddCommGroupCat.{u1} (ModuleCat.moduleCategory.{u1, 0} Int Int.instRingInt) (ModuleCat.moduleConcreteCategory.{u1, 0} Int Int.instRingInt) instAddCommGroupCatLargeCategory.{u1} AddCommGroupCat.concreteCategory.{u1} (ModuleCat.hasForgetToAddCommGroup.{0, u1} Int Int.instRingInt))
-Case conversion may be inaccurate. Consider using '#align Module.forget₂_AddCommGroup_full ModuleCat.forget₂AddCommGroupFullₓ'. -/
 /-- The forgetful functor from `ℤ` modules to `AddCommGroup` is full. -/
 instance forget₂AddCommGroupFull : Full (forget₂ (ModuleCat ℤ) AddCommGroupCat.{u})
     where preimage A B
@@ -48,12 +42,6 @@ instance forget₂AddCommGroupFull : Full (forget₂ (ModuleCat ℤ) AddCommGrou
         rw [int_smul_eq_zsmul, int_smul_eq_zsmul, map_zsmul, RingHom.id_apply] }
 #align Module.forget₂_AddCommGroup_full ModuleCat.forget₂AddCommGroupFull
 
-/- warning: Module.forget₂_AddCommGroup_ess_surj -> ModuleCat.forget₂_addCommGroupCat_essSurj is a dubious translation:
-lean 3 declaration is
-  CategoryTheory.EssSurj.{u1, u1, succ u1, succ u1} (ModuleCat.{u1, 0} Int Int.ring) AddCommGroupCat.{u1} (ModuleCat.moduleCategory.{u1, 0} Int Int.ring) AddCommGroupCat.largeCategory.{u1} (CategoryTheory.forget₂.{succ u1, succ u1, u1, u1, u1} (ModuleCat.{u1, 0} Int Int.ring) AddCommGroupCat.{u1} (ModuleCat.moduleCategory.{u1, 0} Int Int.ring) (ModuleCat.moduleConcreteCategory.{u1, 0} Int Int.ring) AddCommGroupCat.largeCategory.{u1} AddCommGroupCat.concreteCategory.{u1} (ModuleCat.hasForgetToAddCommGroup.{0, u1} Int Int.ring))
-but is expected to have type
-  CategoryTheory.EssSurj.{u1, u1, succ u1, succ u1} (ModuleCat.{u1, 0} Int Int.instRingInt) AddCommGroupCat.{u1} (ModuleCat.moduleCategory.{u1, 0} Int Int.instRingInt) instAddCommGroupCatLargeCategory.{u1} (CategoryTheory.forget₂.{succ u1, succ u1, u1, u1, u1} (ModuleCat.{u1, 0} Int Int.instRingInt) AddCommGroupCat.{u1} (ModuleCat.moduleCategory.{u1, 0} Int Int.instRingInt) (ModuleCat.moduleConcreteCategory.{u1, 0} Int Int.instRingInt) instAddCommGroupCatLargeCategory.{u1} AddCommGroupCat.concreteCategory.{u1} (ModuleCat.hasForgetToAddCommGroup.{0, u1} Int Int.instRingInt))
-Case conversion may be inaccurate. Consider using '#align Module.forget₂_AddCommGroup_ess_surj ModuleCat.forget₂_addCommGroupCat_essSurjₓ'. -/
 /-- The forgetful functor from `ℤ` modules to `AddCommGroup` is essentially surjective. -/
 instance forget₂_addCommGroupCat_essSurj : EssSurj (forget₂ (ModuleCat ℤ) AddCommGroupCat.{u})
     where mem_essImage A :=
@@ -62,12 +50,6 @@ instance forget₂_addCommGroupCat_essSurj : EssSurj (forget₂ (ModuleCat ℤ)
           inv := 𝟙 A }⟩⟩
 #align Module.forget₂_AddCommGroup_ess_surj ModuleCat.forget₂_addCommGroupCat_essSurj
 
-/- warning: Module.forget₂_AddCommGroup_is_equivalence -> ModuleCat.forget₂AddCommGroupIsEquivalence is a dubious translation:
-lean 3 declaration is
-  CategoryTheory.IsEquivalence.{u1, u1, succ u1, succ u1} (ModuleCat.{u1, 0} Int Int.ring) (ModuleCat.moduleCategory.{u1, 0} Int Int.ring) AddCommGroupCat.{u1} AddCommGroupCat.largeCategory.{u1} (CategoryTheory.forget₂.{succ u1, succ u1, u1, u1, u1} (ModuleCat.{u1, 0} Int Int.ring) AddCommGroupCat.{u1} (ModuleCat.moduleCategory.{u1, 0} Int Int.ring) (ModuleCat.moduleConcreteCategory.{u1, 0} Int Int.ring) AddCommGroupCat.largeCategory.{u1} AddCommGroupCat.concreteCategory.{u1} (ModuleCat.hasForgetToAddCommGroup.{0, u1} Int Int.ring))
-but is expected to have type
-  CategoryTheory.IsEquivalence.{u1, u1, succ u1, succ u1} (ModuleCat.{u1, 0} Int Int.instRingInt) (ModuleCat.moduleCategory.{u1, 0} Int Int.instRingInt) AddCommGroupCat.{u1} instAddCommGroupCatLargeCategory.{u1} (CategoryTheory.forget₂.{succ u1, succ u1, u1, u1, u1} (ModuleCat.{u1, 0} Int Int.instRingInt) AddCommGroupCat.{u1} (ModuleCat.moduleCategory.{u1, 0} Int Int.instRingInt) (ModuleCat.moduleConcreteCategory.{u1, 0} Int Int.instRingInt) instAddCommGroupCatLargeCategory.{u1} AddCommGroupCat.concreteCategory.{u1} (ModuleCat.hasForgetToAddCommGroup.{0, u1} Int Int.instRingInt))
-Case conversion may be inaccurate. Consider using '#align Module.forget₂_AddCommGroup_is_equivalence ModuleCat.forget₂AddCommGroupIsEquivalenceₓ'. -/
 noncomputable instance forget₂AddCommGroupIsEquivalence :
     IsEquivalence (forget₂ (ModuleCat ℤ) AddCommGroupCat.{u}) :=
   Equivalence.ofFullyFaithfullyEssSurj (forget₂ (ModuleCat ℤ) AddCommGroupCat)

ef553359

bump to nightly-2023-05-12-14

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

fab1af65

Diff

@@ -35,7 +35,7 @@ namespace ModuleCat
 lean 3 declaration is
   CategoryTheory.Full.{u1, u1, succ u1, succ u1} (ModuleCat.{u1, 0} Int Int.ring) (ModuleCat.moduleCategory.{u1, 0} Int Int.ring) AddCommGroupCat.{u1} AddCommGroupCat.largeCategory.{u1} (CategoryTheory.forget₂.{succ u1, succ u1, u1, u1, u1} (ModuleCat.{u1, 0} Int Int.ring) AddCommGroupCat.{u1} (ModuleCat.moduleCategory.{u1, 0} Int Int.ring) (ModuleCat.moduleConcreteCategory.{u1, 0} Int Int.ring) AddCommGroupCat.largeCategory.{u1} AddCommGroupCat.concreteCategory.{u1} (ModuleCat.hasForgetToAddCommGroup.{0, u1} Int Int.ring))
 but is expected to have type
-  CategoryTheory.Full.{u1, u1, succ u1, succ u1} (ModuleCat.{u1, 0} Int Int.instRingInt) (ModuleCat.moduleCategory.{u1, 0} Int Int.instRingInt) AddCommGroupCat.{u1} AddCommGroupCat.largeCategory.{u1} (CategoryTheory.forget₂.{succ u1, succ u1, u1, u1, u1} (ModuleCat.{u1, 0} Int Int.instRingInt) AddCommGroupCat.{u1} (ModuleCat.moduleCategory.{u1, 0} Int Int.instRingInt) (ModuleCat.moduleConcreteCategory.{u1, 0} Int Int.instRingInt) AddCommGroupCat.largeCategory.{u1} AddCommGroupCat.concreteCategory.{u1} (ModuleCat.hasForgetToAddCommGroup.{0, u1} Int Int.instRingInt))
+  CategoryTheory.Full.{u1, u1, succ u1, succ u1} (ModuleCat.{u1, 0} Int Int.instRingInt) (ModuleCat.moduleCategory.{u1, 0} Int Int.instRingInt) AddCommGroupCat.{u1} instAddCommGroupCatLargeCategory.{u1} (CategoryTheory.forget₂.{succ u1, succ u1, u1, u1, u1} (ModuleCat.{u1, 0} Int Int.instRingInt) AddCommGroupCat.{u1} (ModuleCat.moduleCategory.{u1, 0} Int Int.instRingInt) (ModuleCat.moduleConcreteCategory.{u1, 0} Int Int.instRingInt) instAddCommGroupCatLargeCategory.{u1} AddCommGroupCat.concreteCategory.{u1} (ModuleCat.hasForgetToAddCommGroup.{0, u1} Int Int.instRingInt))
 Case conversion may be inaccurate. Consider using '#align Module.forget₂_AddCommGroup_full ModuleCat.forget₂AddCommGroupFullₓ'. -/
 /-- The forgetful functor from `ℤ` modules to `AddCommGroup` is full. -/
 instance forget₂AddCommGroupFull : Full (forget₂ (ModuleCat ℤ) AddCommGroupCat.{u})
@@ -52,7 +52,7 @@ instance forget₂AddCommGroupFull : Full (forget₂ (ModuleCat ℤ) AddCommGrou
 lean 3 declaration is
   CategoryTheory.EssSurj.{u1, u1, succ u1, succ u1} (ModuleCat.{u1, 0} Int Int.ring) AddCommGroupCat.{u1} (ModuleCat.moduleCategory.{u1, 0} Int Int.ring) AddCommGroupCat.largeCategory.{u1} (CategoryTheory.forget₂.{succ u1, succ u1, u1, u1, u1} (ModuleCat.{u1, 0} Int Int.ring) AddCommGroupCat.{u1} (ModuleCat.moduleCategory.{u1, 0} Int Int.ring) (ModuleCat.moduleConcreteCategory.{u1, 0} Int Int.ring) AddCommGroupCat.largeCategory.{u1} AddCommGroupCat.concreteCategory.{u1} (ModuleCat.hasForgetToAddCommGroup.{0, u1} Int Int.ring))
 but is expected to have type
-  CategoryTheory.EssSurj.{u1, u1, succ u1, succ u1} (ModuleCat.{u1, 0} Int Int.instRingInt) AddCommGroupCat.{u1} (ModuleCat.moduleCategory.{u1, 0} Int Int.instRingInt) AddCommGroupCat.largeCategory.{u1} (CategoryTheory.forget₂.{succ u1, succ u1, u1, u1, u1} (ModuleCat.{u1, 0} Int Int.instRingInt) AddCommGroupCat.{u1} (ModuleCat.moduleCategory.{u1, 0} Int Int.instRingInt) (ModuleCat.moduleConcreteCategory.{u1, 0} Int Int.instRingInt) AddCommGroupCat.largeCategory.{u1} AddCommGroupCat.concreteCategory.{u1} (ModuleCat.hasForgetToAddCommGroup.{0, u1} Int Int.instRingInt))
+  CategoryTheory.EssSurj.{u1, u1, succ u1, succ u1} (ModuleCat.{u1, 0} Int Int.instRingInt) AddCommGroupCat.{u1} (ModuleCat.moduleCategory.{u1, 0} Int Int.instRingInt) instAddCommGroupCatLargeCategory.{u1} (CategoryTheory.forget₂.{succ u1, succ u1, u1, u1, u1} (ModuleCat.{u1, 0} Int Int.instRingInt) AddCommGroupCat.{u1} (ModuleCat.moduleCategory.{u1, 0} Int Int.instRingInt) (ModuleCat.moduleConcreteCategory.{u1, 0} Int Int.instRingInt) instAddCommGroupCatLargeCategory.{u1} AddCommGroupCat.concreteCategory.{u1} (ModuleCat.hasForgetToAddCommGroup.{0, u1} Int Int.instRingInt))
 Case conversion may be inaccurate. Consider using '#align Module.forget₂_AddCommGroup_ess_surj ModuleCat.forget₂_addCommGroupCat_essSurjₓ'. -/
 /-- The forgetful functor from `ℤ` modules to `AddCommGroup` is essentially surjective. -/
 instance forget₂_addCommGroupCat_essSurj : EssSurj (forget₂ (ModuleCat ℤ) AddCommGroupCat.{u})
@@ -66,7 +66,7 @@ instance forget₂_addCommGroupCat_essSurj : EssSurj (forget₂ (ModuleCat ℤ)
 lean 3 declaration is
   CategoryTheory.IsEquivalence.{u1, u1, succ u1, succ u1} (ModuleCat.{u1, 0} Int Int.ring) (ModuleCat.moduleCategory.{u1, 0} Int Int.ring) AddCommGroupCat.{u1} AddCommGroupCat.largeCategory.{u1} (CategoryTheory.forget₂.{succ u1, succ u1, u1, u1, u1} (ModuleCat.{u1, 0} Int Int.ring) AddCommGroupCat.{u1} (ModuleCat.moduleCategory.{u1, 0} Int Int.ring) (ModuleCat.moduleConcreteCategory.{u1, 0} Int Int.ring) AddCommGroupCat.largeCategory.{u1} AddCommGroupCat.concreteCategory.{u1} (ModuleCat.hasForgetToAddCommGroup.{0, u1} Int Int.ring))
 but is expected to have type
-  CategoryTheory.IsEquivalence.{u1, u1, succ u1, succ u1} (ModuleCat.{u1, 0} Int Int.instRingInt) (ModuleCat.moduleCategory.{u1, 0} Int Int.instRingInt) AddCommGroupCat.{u1} AddCommGroupCat.largeCategory.{u1} (CategoryTheory.forget₂.{succ u1, succ u1, u1, u1, u1} (ModuleCat.{u1, 0} Int Int.instRingInt) AddCommGroupCat.{u1} (ModuleCat.moduleCategory.{u1, 0} Int Int.instRingInt) (ModuleCat.moduleConcreteCategory.{u1, 0} Int Int.instRingInt) AddCommGroupCat.largeCategory.{u1} AddCommGroupCat.concreteCategory.{u1} (ModuleCat.hasForgetToAddCommGroup.{0, u1} Int Int.instRingInt))
+  CategoryTheory.IsEquivalence.{u1, u1, succ u1, succ u1} (ModuleCat.{u1, 0} Int Int.instRingInt) (ModuleCat.moduleCategory.{u1, 0} Int Int.instRingInt) AddCommGroupCat.{u1} instAddCommGroupCatLargeCategory.{u1} (CategoryTheory.forget₂.{succ u1, succ u1, u1, u1, u1} (ModuleCat.{u1, 0} Int Int.instRingInt) AddCommGroupCat.{u1} (ModuleCat.moduleCategory.{u1, 0} Int Int.instRingInt) (ModuleCat.moduleConcreteCategory.{u1, 0} Int Int.instRingInt) instAddCommGroupCatLargeCategory.{u1} AddCommGroupCat.concreteCategory.{u1} (ModuleCat.hasForgetToAddCommGroup.{0, u1} Int Int.instRingInt))
 Case conversion may be inaccurate. Consider using '#align Module.forget₂_AddCommGroup_is_equivalence ModuleCat.forget₂AddCommGroupIsEquivalenceₓ'. -/
 noncomputable instance forget₂AddCommGroupIsEquivalence :
     IsEquivalence (forget₂ (ModuleCat ℤ) AddCommGroupCat.{u}) :=

ef553359

bump to nightly-2023-05-03-02

mathlib commit https://github.com/leanprover-community/mathlib/commit/36b8aa61ea7c05727161f96a0532897bd72aedab

5ced3cdd

Diff

@@ -4,13 +4,16 @@ 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.Group.Z_Module_equivalence
-! leanprover-community/mathlib commit bf1b813e20e108e8868341ca94bb3404a2506ae5
+! leanprover-community/mathlib commit ef55335933293309ff8c0b1d20ffffeecbe5c39f
 ! Please do not edit these lines, except to modify the commit id
 ! if you have ported upstream changes.
 -/
 import Mathbin.Algebra.Category.Module.Basic
 
 /-!
+> THIS FILE IS SYNCHRONIZED WITH MATHLIB4.
+> Any changes to this file require a corresponding PR to mathlib4.
+
 The forgetful functor from ℤ-modules to additive commutative groups is
 an equivalence of categories.

bf1b813e

bump to nightly-2023-04-30-00

mathlib commit https://github.com/leanprover-community/mathlib/commit/a4f99eae998680d3a2c240da4a2b16354c85ee49

cc91e47a

Diff

@@ -28,6 +28,12 @@ universe u
 
 namespace ModuleCat
 
+/- warning: Module.forget₂_AddCommGroup_full -> ModuleCat.forget₂AddCommGroupFull is a dubious translation:
+lean 3 declaration is
+  CategoryTheory.Full.{u1, u1, succ u1, succ u1} (ModuleCat.{u1, 0} Int Int.ring) (ModuleCat.moduleCategory.{u1, 0} Int Int.ring) AddCommGroupCat.{u1} AddCommGroupCat.largeCategory.{u1} (CategoryTheory.forget₂.{succ u1, succ u1, u1, u1, u1} (ModuleCat.{u1, 0} Int Int.ring) AddCommGroupCat.{u1} (ModuleCat.moduleCategory.{u1, 0} Int Int.ring) (ModuleCat.moduleConcreteCategory.{u1, 0} Int Int.ring) AddCommGroupCat.largeCategory.{u1} AddCommGroupCat.concreteCategory.{u1} (ModuleCat.hasForgetToAddCommGroup.{0, u1} Int Int.ring))
+but is expected to have type
+  CategoryTheory.Full.{u1, u1, succ u1, succ u1} (ModuleCat.{u1, 0} Int Int.instRingInt) (ModuleCat.moduleCategory.{u1, 0} Int Int.instRingInt) AddCommGroupCat.{u1} AddCommGroupCat.largeCategory.{u1} (CategoryTheory.forget₂.{succ u1, succ u1, u1, u1, u1} (ModuleCat.{u1, 0} Int Int.instRingInt) AddCommGroupCat.{u1} (ModuleCat.moduleCategory.{u1, 0} Int Int.instRingInt) (ModuleCat.moduleConcreteCategory.{u1, 0} Int Int.instRingInt) AddCommGroupCat.largeCategory.{u1} AddCommGroupCat.concreteCategory.{u1} (ModuleCat.hasForgetToAddCommGroup.{0, u1} Int Int.instRingInt))
+Case conversion may be inaccurate. Consider using '#align Module.forget₂_AddCommGroup_full ModuleCat.forget₂AddCommGroupFullₓ'. -/
 /-- The forgetful functor from `ℤ` modules to `AddCommGroup` is full. -/
 instance forget₂AddCommGroupFull : Full (forget₂ (ModuleCat ℤ) AddCommGroupCat.{u})
     where preimage A B
@@ -39,6 +45,12 @@ instance forget₂AddCommGroupFull : Full (forget₂ (ModuleCat ℤ) AddCommGrou
         rw [int_smul_eq_zsmul, int_smul_eq_zsmul, map_zsmul, RingHom.id_apply] }
 #align Module.forget₂_AddCommGroup_full ModuleCat.forget₂AddCommGroupFull
 
+/- warning: Module.forget₂_AddCommGroup_ess_surj -> ModuleCat.forget₂_addCommGroupCat_essSurj is a dubious translation:
+lean 3 declaration is
+  CategoryTheory.EssSurj.{u1, u1, succ u1, succ u1} (ModuleCat.{u1, 0} Int Int.ring) AddCommGroupCat.{u1} (ModuleCat.moduleCategory.{u1, 0} Int Int.ring) AddCommGroupCat.largeCategory.{u1} (CategoryTheory.forget₂.{succ u1, succ u1, u1, u1, u1} (ModuleCat.{u1, 0} Int Int.ring) AddCommGroupCat.{u1} (ModuleCat.moduleCategory.{u1, 0} Int Int.ring) (ModuleCat.moduleConcreteCategory.{u1, 0} Int Int.ring) AddCommGroupCat.largeCategory.{u1} AddCommGroupCat.concreteCategory.{u1} (ModuleCat.hasForgetToAddCommGroup.{0, u1} Int Int.ring))
+but is expected to have type
+  CategoryTheory.EssSurj.{u1, u1, succ u1, succ u1} (ModuleCat.{u1, 0} Int Int.instRingInt) AddCommGroupCat.{u1} (ModuleCat.moduleCategory.{u1, 0} Int Int.instRingInt) AddCommGroupCat.largeCategory.{u1} (CategoryTheory.forget₂.{succ u1, succ u1, u1, u1, u1} (ModuleCat.{u1, 0} Int Int.instRingInt) AddCommGroupCat.{u1} (ModuleCat.moduleCategory.{u1, 0} Int Int.instRingInt) (ModuleCat.moduleConcreteCategory.{u1, 0} Int Int.instRingInt) AddCommGroupCat.largeCategory.{u1} AddCommGroupCat.concreteCategory.{u1} (ModuleCat.hasForgetToAddCommGroup.{0, u1} Int Int.instRingInt))
+Case conversion may be inaccurate. Consider using '#align Module.forget₂_AddCommGroup_ess_surj ModuleCat.forget₂_addCommGroupCat_essSurjₓ'. -/
 /-- The forgetful functor from `ℤ` modules to `AddCommGroup` is essentially surjective. -/
 instance forget₂_addCommGroupCat_essSurj : EssSurj (forget₂ (ModuleCat ℤ) AddCommGroupCat.{u})
     where mem_essImage A :=
@@ -47,6 +59,12 @@ instance forget₂_addCommGroupCat_essSurj : EssSurj (forget₂ (ModuleCat ℤ)
           inv := 𝟙 A }⟩⟩
 #align Module.forget₂_AddCommGroup_ess_surj ModuleCat.forget₂_addCommGroupCat_essSurj
 
+/- warning: Module.forget₂_AddCommGroup_is_equivalence -> ModuleCat.forget₂AddCommGroupIsEquivalence is a dubious translation:
+lean 3 declaration is
+  CategoryTheory.IsEquivalence.{u1, u1, succ u1, succ u1} (ModuleCat.{u1, 0} Int Int.ring) (ModuleCat.moduleCategory.{u1, 0} Int Int.ring) AddCommGroupCat.{u1} AddCommGroupCat.largeCategory.{u1} (CategoryTheory.forget₂.{succ u1, succ u1, u1, u1, u1} (ModuleCat.{u1, 0} Int Int.ring) AddCommGroupCat.{u1} (ModuleCat.moduleCategory.{u1, 0} Int Int.ring) (ModuleCat.moduleConcreteCategory.{u1, 0} Int Int.ring) AddCommGroupCat.largeCategory.{u1} AddCommGroupCat.concreteCategory.{u1} (ModuleCat.hasForgetToAddCommGroup.{0, u1} Int Int.ring))
+but is expected to have type
+  CategoryTheory.IsEquivalence.{u1, u1, succ u1, succ u1} (ModuleCat.{u1, 0} Int Int.instRingInt) (ModuleCat.moduleCategory.{u1, 0} Int Int.instRingInt) AddCommGroupCat.{u1} AddCommGroupCat.largeCategory.{u1} (CategoryTheory.forget₂.{succ u1, succ u1, u1, u1, u1} (ModuleCat.{u1, 0} Int Int.instRingInt) AddCommGroupCat.{u1} (ModuleCat.moduleCategory.{u1, 0} Int Int.instRingInt) (ModuleCat.moduleConcreteCategory.{u1, 0} Int Int.instRingInt) AddCommGroupCat.largeCategory.{u1} AddCommGroupCat.concreteCategory.{u1} (ModuleCat.hasForgetToAddCommGroup.{0, u1} Int Int.instRingInt))
+Case conversion may be inaccurate. Consider using '#align Module.forget₂_AddCommGroup_is_equivalence ModuleCat.forget₂AddCommGroupIsEquivalenceₓ'. -/
 noncomputable instance forget₂AddCommGroupIsEquivalence :
     IsEquivalence (forget₂ (ModuleCat ℤ) AddCommGroupCat.{u}) :=
   Equivalence.ofFullyFaithfullyEssSurj (forget₂ (ModuleCat ℤ) AddCommGroupCat)

bf1b813e

bump to nightly-2023-02-21-16

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

1107b979

Changes in mathlib4

mathlib3

mathlib4

bf1b813e

chore(CategoryTheory): make Functor.Full a Prop (#12449)

Before this PR, Functor.Full contained the data of the preimage of maps by a full functor F. This PR makes Functor.Full a proposition. This is to prevent any diamond to appear.

The lemma Functor.image_preimage is also renamed Functor.map_preimage.

Co-authored-by: Joël Riou <37772949+joelriou@users.noreply.github.com>

ce289a0e

Diff

@@ -26,19 +26,19 @@ universe u
 namespace ModuleCat
 
 /-- The forgetful functor from `ℤ` modules to `AddCommGroup` is full. -/
-instance forget₂AddCommGroupFull : (forget₂ (ModuleCat ℤ) AddCommGroupCat.{u}).Full where
-  preimage {A B}
+instance forget₂_addCommGroup_full : (forget₂ (ModuleCat ℤ) AddCommGroupCat.{u}).Full where
+  map_surjective {A B}
     -- `AddMonoidHom.toIntLinearMap` doesn't work here because `A` and `B` are not
     -- definitionally equal to the canonical `AddCommGroup.intModule` module
     -- instances it expects.
-    f := @LinearMap.mk _ _ _ _ _ _ _ _ _ A.isModule B.isModule
+    f := ⟨@LinearMap.mk _ _ _ _ _ _ _ _ _ A.isModule B.isModule
         { toFun := f,
           map_add' := AddMonoidHom.map_add (show A.carrier →+ B.carrier from f) }
         (fun n x => by
           convert AddMonoidHom.map_zsmul (show A.carrier →+ B.carrier from f) x n <;>
-            ext <;> apply int_smul_eq_zsmul)
+            ext <;> apply int_smul_eq_zsmul), rfl⟩
 set_option linter.uppercaseLean3 false in
-#align Module.forget₂_AddCommGroup_full ModuleCat.forget₂AddCommGroupFull
+#align Module.forget₂_AddCommGroup_full ModuleCat.forget₂_addCommGroup_full
 
 /-- The forgetful functor from `ℤ` modules to `AddCommGroup` is essentially surjective. -/
 instance forget₂_addCommGroupCat_essSurj : (forget₂ (ModuleCat ℤ) AddCommGroupCat.{u}).EssSurj where

bf1b813e

chore(CategoryTheory): move Full, Faithful, EssSurj, IsEquivalence and ReflectsIsomorphisms to the Functor namespace (#11985)

These notions on functors are now Functor.Full, Functor.Faithful, Functor.EssSurj, Functor.IsEquivalence, Functor.ReflectsIsomorphisms. Deprecated aliases are introduced for the previous names.

65b7affc

Diff

@@ -26,7 +26,7 @@ universe u
 namespace ModuleCat
 
 /-- The forgetful functor from `ℤ` modules to `AddCommGroup` is full. -/
-instance forget₂AddCommGroupFull : Full (forget₂ (ModuleCat ℤ) AddCommGroupCat.{u}) where
+instance forget₂AddCommGroupFull : (forget₂ (ModuleCat ℤ) AddCommGroupCat.{u}).Full where
   preimage {A B}
     -- `AddMonoidHom.toIntLinearMap` doesn't work here because `A` and `B` are not
     -- definitionally equal to the canonical `AddCommGroup.intModule` module
@@ -41,7 +41,7 @@ set_option linter.uppercaseLean3 false in
 #align Module.forget₂_AddCommGroup_full ModuleCat.forget₂AddCommGroupFull
 
 /-- The forgetful functor from `ℤ` modules to `AddCommGroup` is essentially surjective. -/
-instance forget₂_addCommGroupCat_essSurj : EssSurj (forget₂ (ModuleCat ℤ) AddCommGroupCat.{u}) where
+instance forget₂_addCommGroupCat_essSurj : (forget₂ (ModuleCat ℤ) AddCommGroupCat.{u}).EssSurj where
   mem_essImage A :=
     ⟨ModuleCat.of ℤ A,
       ⟨{  hom := 𝟙 A
@@ -50,8 +50,8 @@ set_option linter.uppercaseLean3 false in
 #align Module.forget₂_AddCommGroup_ess_surj ModuleCat.forget₂_addCommGroupCat_essSurj
 
 noncomputable instance forget₂AddCommGroupIsEquivalence :
-    IsEquivalence (forget₂ (ModuleCat ℤ) AddCommGroupCat.{u}) :=
-  Equivalence.ofFullyFaithfullyEssSurj (forget₂ (ModuleCat ℤ) AddCommGroupCat)
+    (forget₂ (ModuleCat ℤ) AddCommGroupCat.{u}).IsEquivalence :=
+  Functor.IsEquivalence.ofFullyFaithfullyEssSurj (forget₂ (ModuleCat ℤ) AddCommGroupCat)
 set_option linter.uppercaseLean3 false in
 #align Module.forget₂_AddCommGroup_is_equivalence ModuleCat.forget₂AddCommGroupIsEquivalence

bf1b813e

style: fix wrapping of where (#7149)

084cfb35

Diff

@@ -41,8 +41,8 @@ set_option linter.uppercaseLean3 false in
 #align Module.forget₂_AddCommGroup_full ModuleCat.forget₂AddCommGroupFull
 
 /-- The forgetful functor from `ℤ` modules to `AddCommGroup` is essentially surjective. -/
-instance forget₂_addCommGroupCat_essSurj : EssSurj (forget₂ (ModuleCat ℤ) AddCommGroupCat.{u})
-    where mem_essImage A :=
+instance forget₂_addCommGroupCat_essSurj : EssSurj (forget₂ (ModuleCat ℤ) AddCommGroupCat.{u}) where
+  mem_essImage A :=
     ⟨ModuleCat.of ℤ A,
       ⟨{  hom := 𝟙 A
           inv := 𝟙 A }⟩⟩

bf1b813e

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) 2020 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.Group.Z_Module_equivalence
-! leanprover-community/mathlib commit bf1b813e20e108e8868341ca94bb3404a2506ae5
-! Please do not edit these lines, except to modify the commit id
-! if you have ported upstream changes.
 -/
 import Mathlib.Algebra.Category.ModuleCat.Basic
 
+#align_import algebra.category.Group.Z_Module_equivalence from "leanprover-community/mathlib"@"bf1b813e20e108e8868341ca94bb3404a2506ae5"
+
 /-!
 The forgetful functor from ℤ-modules to additive commutative groups is
 an equivalence of categories.

bf1b813e

feat: port Algebra.Category.Group.ZModuleEquivalence (#3732)

385ed76c

`algebra.category.Group.Z_Module_equivalence` ⟷ `Mathlib.Algebra.Category.GroupCat.ZModuleEquivalence`

Changes since the initial port

Changes in mathlib3

Changes in mathlib3port

Changes in mathlib4

Dependencies 8 + 445

algebra.category.Group.Z_Module_equivalence ⟷ Mathlib.Algebra.Category.GroupCat.ZModuleEquivalence

Changes since the initial port

Changes in mathlib3

Changes in mathlib3port

Changes in mathlib4

Dependencies 8 + 445

`algebra.category.Group.Z_Module_equivalence` ⟷ `Mathlib.Algebra.Category.GroupCat.ZModuleEquivalence`