category_theory.preadditive.yoneda.injective

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

f8d8465c

(last sync)

Changes in mathlib3port

mathlib3

mathlib3port

bd15ff41

bump to nightly-2024-04-06-08

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

e34029c9

Diff

@@ -5,8 +5,8 @@ Authors: Markus Himmel, Scott Morrison
 -/
 import CategoryTheory.Preadditive.Yoneda.Basic
 import CategoryTheory.Preadditive.Injective
-import Algebra.Category.Group.EpiMono
-import Algebra.Category.Module.EpiMono
+import Algebra.Category.GroupCat.EpiMono
+import Algebra.Category.ModuleCat.EpiMono
 
 #align_import category_theory.preadditive.yoneda.injective from "leanprover-community/mathlib"@"bd15ff41b70f5e2cc210f26f25a8d5c53b20d3de"

bd15ff41

bump to nightly-2023-09-24-06

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

5655435f

Diff

@@ -3,10 +3,10 @@ Copyright (c) 2020 Markus Himmel. All rights reserved.
 Released under Apache 2.0 license as described in the file LICENSE.
 Authors: Markus Himmel, Scott Morrison
 -/
-import Mathbin.CategoryTheory.Preadditive.Yoneda.Basic
-import Mathbin.CategoryTheory.Preadditive.Injective
-import Mathbin.Algebra.Category.Group.EpiMono
-import Mathbin.Algebra.Category.Module.EpiMono
+import CategoryTheory.Preadditive.Yoneda.Basic
+import CategoryTheory.Preadditive.Injective
+import Algebra.Category.Group.EpiMono
+import Algebra.Category.Module.EpiMono
 
 #align_import category_theory.preadditive.yoneda.injective from "leanprover-community/mathlib"@"bd15ff41b70f5e2cc210f26f25a8d5c53b20d3de"

bd15ff41

bump to nightly-2023-07-20-09

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

9c56d0dd

Diff

@@ -2,17 +2,14 @@
 Copyright (c) 2020 Markus Himmel. All rights reserved.
 Released under Apache 2.0 license as described in the file LICENSE.
 Authors: Markus Himmel, Scott Morrison
-
-! This file was ported from Lean 3 source module category_theory.preadditive.yoneda.injective
-! leanprover-community/mathlib commit bd15ff41b70f5e2cc210f26f25a8d5c53b20d3de
-! Please do not edit these lines, except to modify the commit id
-! if you have ported upstream changes.
 -/
 import Mathbin.CategoryTheory.Preadditive.Yoneda.Basic
 import Mathbin.CategoryTheory.Preadditive.Injective
 import Mathbin.Algebra.Category.Group.EpiMono
 import Mathbin.Algebra.Category.Module.EpiMono
 
+#align_import category_theory.preadditive.yoneda.injective from "leanprover-community/mathlib"@"bd15ff41b70f5e2cc210f26f25a8d5c53b20d3de"
+
 /-!
 > THIS FILE IS SYNCHRONIZED WITH MATHLIB4.
 > Any changes to this file require a corresponding PR to mathlib4.

bd15ff41

bump to nightly-2023-06-13-21

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

829520ac

Diff

@@ -35,6 +35,7 @@ variable [Preadditive C]
 
 namespace Injective
 
+#print CategoryTheory.Injective.injective_iff_preservesEpimorphisms_preadditiveYoneda_obj /-
 theorem injective_iff_preservesEpimorphisms_preadditiveYoneda_obj (J : C) :
     Injective J ↔ (preadditiveYoneda.obj J).PreservesEpimorphisms :=
   by
@@ -46,7 +47,9 @@ theorem injective_iff_preservesEpimorphisms_preadditiveYoneda_obj (J : C) :
   · intro
     exact (inferInstance : (preadditive_yoneda.obj J ⋙ forget _).PreservesEpimorphisms)
 #align category_theory.injective.injective_iff_preserves_epimorphisms_preadditive_yoneda_obj CategoryTheory.Injective.injective_iff_preservesEpimorphisms_preadditiveYoneda_obj
+-/
 
+#print CategoryTheory.Injective.injective_iff_preservesEpimorphisms_preadditive_yoneda_obj' /-
 theorem injective_iff_preservesEpimorphisms_preadditive_yoneda_obj' (J : C) :
     Injective J ↔ (preadditiveYonedaObj J).PreservesEpimorphisms :=
   by
@@ -58,6 +61,7 @@ theorem injective_iff_preservesEpimorphisms_preadditive_yoneda_obj' (J : C) :
   · intro
     exact (inferInstance : (preadditive_yoneda_obj J ⋙ forget _).PreservesEpimorphisms)
 #align category_theory.injective.injective_iff_preserves_epimorphisms_preadditive_yoneda_obj' CategoryTheory.Injective.injective_iff_preservesEpimorphisms_preadditive_yoneda_obj'
+-/
 
 end Injective

bd15ff41

bump to nightly-2023-05-28-06

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

ba5d8b97

Diff

@@ -35,12 +35,6 @@ variable [Preadditive C]
 
 namespace Injective
 
-/- warning: category_theory.injective.injective_iff_preserves_epimorphisms_preadditive_yoneda_obj -> CategoryTheory.Injective.injective_iff_preservesEpimorphisms_preadditiveYoneda_obj is a dubious translation:
-lean 3 declaration is
-  forall {C : Type.{u2}} [_inst_1 : CategoryTheory.Category.{u1, u2} C] [_inst_2 : CategoryTheory.Preadditive.{u1, u2} C _inst_1] (J : C), Iff (CategoryTheory.Injective.{u1, u2} C _inst_1 J) (CategoryTheory.Functor.PreservesEpimorphisms.{u1, u1, u2, succ u1} (Opposite.{succ u2} C) (CategoryTheory.Category.opposite.{u1, u2} C _inst_1) AddCommGroupCat.{u1} AddCommGroupCat.largeCategory.{u1} (CategoryTheory.Functor.obj.{u1, max u2 u1, u2, max u1 u2 (succ u1)} C _inst_1 (CategoryTheory.Functor.{u1, u1, u2, succ u1} (Opposite.{succ u2} C) (CategoryTheory.Category.opposite.{u1, u2} C _inst_1) AddCommGroupCat.{u1} AddCommGroupCat.largeCategory.{u1}) (CategoryTheory.Functor.category.{u1, u1, u2, succ u1} (Opposite.{succ u2} C) (CategoryTheory.Category.opposite.{u1, u2} C _inst_1) AddCommGroupCat.{u1} AddCommGroupCat.largeCategory.{u1}) (CategoryTheory.preadditiveYoneda.{u1, u2} C _inst_1 _inst_2) J))
-but is expected to have type
-  forall {C : Type.{u2}} [_inst_1 : CategoryTheory.Category.{u1, u2} C] [_inst_2 : CategoryTheory.Preadditive.{u1, u2} C _inst_1] (J : C), Iff (CategoryTheory.Injective.{u1, u2} C _inst_1 J) (CategoryTheory.Functor.PreservesEpimorphisms.{u1, u1, u2, succ u1} (Opposite.{succ u2} C) (CategoryTheory.Category.opposite.{u1, u2} C _inst_1) AddCommGroupCat.{u1} instAddCommGroupCatLargeCategory.{u1} (Prefunctor.obj.{succ u1, max (succ u1) (succ u2), u2, max (succ u1) u2} C (CategoryTheory.CategoryStruct.toQuiver.{u1, u2} C (CategoryTheory.Category.toCategoryStruct.{u1, u2} C _inst_1)) (CategoryTheory.Functor.{u1, u1, u2, succ u1} (Opposite.{succ u2} C) (CategoryTheory.Category.opposite.{u1, u2} C _inst_1) AddCommGroupCat.{u1} instAddCommGroupCatLargeCategory.{u1}) (CategoryTheory.CategoryStruct.toQuiver.{max u2 u1, max u2 (succ u1)} (CategoryTheory.Functor.{u1, u1, u2, succ u1} (Opposite.{succ u2} C) (CategoryTheory.Category.opposite.{u1, u2} C _inst_1) AddCommGroupCat.{u1} instAddCommGroupCatLargeCategory.{u1}) (CategoryTheory.Category.toCategoryStruct.{max u2 u1, max u2 (succ u1)} (CategoryTheory.Functor.{u1, u1, u2, succ u1} (Opposite.{succ u2} C) (CategoryTheory.Category.opposite.{u1, u2} C _inst_1) AddCommGroupCat.{u1} instAddCommGroupCatLargeCategory.{u1}) (CategoryTheory.Functor.category.{u1, u1, u2, succ u1} (Opposite.{succ u2} C) (CategoryTheory.Category.opposite.{u1, u2} C _inst_1) AddCommGroupCat.{u1} instAddCommGroupCatLargeCategory.{u1}))) (CategoryTheory.Functor.toPrefunctor.{u1, max u2 u1, u2, max u2 (succ u1)} C _inst_1 (CategoryTheory.Functor.{u1, u1, u2, succ u1} (Opposite.{succ u2} C) (CategoryTheory.Category.opposite.{u1, u2} C _inst_1) AddCommGroupCat.{u1} instAddCommGroupCatLargeCategory.{u1}) (CategoryTheory.Functor.category.{u1, u1, u2, succ u1} (Opposite.{succ u2} C) (CategoryTheory.Category.opposite.{u1, u2} C _inst_1) AddCommGroupCat.{u1} instAddCommGroupCatLargeCategory.{u1}) (CategoryTheory.preadditiveYoneda.{u1, u2} C _inst_1 _inst_2)) J))
-Case conversion may be inaccurate. Consider using '#align category_theory.injective.injective_iff_preserves_epimorphisms_preadditive_yoneda_obj CategoryTheory.Injective.injective_iff_preservesEpimorphisms_preadditiveYoneda_objₓ'. -/
 theorem injective_iff_preservesEpimorphisms_preadditiveYoneda_obj (J : C) :
     Injective J ↔ (preadditiveYoneda.obj J).PreservesEpimorphisms :=
   by
@@ -53,12 +47,6 @@ theorem injective_iff_preservesEpimorphisms_preadditiveYoneda_obj (J : C) :
     exact (inferInstance : (preadditive_yoneda.obj J ⋙ forget _).PreservesEpimorphisms)
 #align category_theory.injective.injective_iff_preserves_epimorphisms_preadditive_yoneda_obj CategoryTheory.Injective.injective_iff_preservesEpimorphisms_preadditiveYoneda_obj
 
-/- warning: category_theory.injective.injective_iff_preserves_epimorphisms_preadditive_yoneda_obj' -> CategoryTheory.Injective.injective_iff_preservesEpimorphisms_preadditive_yoneda_obj' is a dubious translation:
-lean 3 declaration is
-  forall {C : Type.{u2}} [_inst_1 : CategoryTheory.Category.{u1, u2} C] [_inst_2 : CategoryTheory.Preadditive.{u1, u2} C _inst_1] (J : C), Iff (CategoryTheory.Injective.{u1, u2} C _inst_1 J) (CategoryTheory.Functor.PreservesEpimorphisms.{u1, u1, u2, succ u1} (Opposite.{succ u2} C) (CategoryTheory.Category.opposite.{u1, u2} C _inst_1) (ModuleCat.{u1, u1} (CategoryTheory.End.{u1, u2} C (CategoryTheory.Category.toCategoryStruct.{u1, u2} C _inst_1) J) (CategoryTheory.Preadditive.CategoryTheory.End.ring.{u1, u2} C _inst_1 _inst_2 J)) (ModuleCat.moduleCategory.{u1, u1} (CategoryTheory.End.{u1, u2} C (CategoryTheory.Category.toCategoryStruct.{u1, u2} C _inst_1) J) (CategoryTheory.Preadditive.CategoryTheory.End.ring.{u1, u2} C _inst_1 _inst_2 J)) (CategoryTheory.preadditiveYonedaObj.{u1, u2} C _inst_1 _inst_2 J))
-but is expected to have type
-  forall {C : Type.{u2}} [_inst_1 : CategoryTheory.Category.{u1, u2} C] [_inst_2 : CategoryTheory.Preadditive.{u1, u2} C _inst_1] (J : C), Iff (CategoryTheory.Injective.{u1, u2} C _inst_1 J) (CategoryTheory.Functor.PreservesEpimorphisms.{u1, u1, u2, succ u1} (Opposite.{succ u2} C) (CategoryTheory.Category.opposite.{u1, u2} C _inst_1) (ModuleCat.{u1, u1} (CategoryTheory.End.{u1, u2} C (CategoryTheory.Category.toCategoryStruct.{u1, u2} C _inst_1) J) (CategoryTheory.Preadditive.instRingEndToCategoryStruct.{u1, u2} C _inst_1 _inst_2 J)) (ModuleCat.moduleCategory.{u1, u1} (CategoryTheory.End.{u1, u2} C (CategoryTheory.Category.toCategoryStruct.{u1, u2} C _inst_1) J) (CategoryTheory.Preadditive.instRingEndToCategoryStruct.{u1, u2} C _inst_1 _inst_2 J)) (CategoryTheory.preadditiveYonedaObj.{u1, u2} C _inst_1 _inst_2 J))
-Case conversion may be inaccurate. Consider using '#align category_theory.injective.injective_iff_preserves_epimorphisms_preadditive_yoneda_obj' CategoryTheory.Injective.injective_iff_preservesEpimorphisms_preadditive_yoneda_obj'ₓ'. -/
 theorem injective_iff_preservesEpimorphisms_preadditive_yoneda_obj' (J : C) :
     Injective J ↔ (preadditiveYonedaObj J).PreservesEpimorphisms :=
   by

bd15ff41

bump to nightly-2023-05-13-02

mathlib commit https://github.com/leanprover-community/mathlib/commit/403190b5419b3f03f1a2893ad9352ca7f7d8bff6

d312d6d5

Diff

@@ -4,7 +4,7 @@ Released under Apache 2.0 license as described in the file LICENSE.
 Authors: Markus Himmel, Scott Morrison
 
 ! This file was ported from Lean 3 source module category_theory.preadditive.yoneda.injective
-! leanprover-community/mathlib commit f8d8465c3c392a93b9ed226956e26dee00975946
+! leanprover-community/mathlib commit bd15ff41b70f5e2cc210f26f25a8d5c53b20d3de
 ! Please do not edit these lines, except to modify the commit id
 ! if you have ported upstream changes.
 -/
@@ -14,6 +14,9 @@ import Mathbin.Algebra.Category.Group.EpiMono
 import Mathbin.Algebra.Category.Module.EpiMono
 
 /-!
+> THIS FILE IS SYNCHRONIZED WITH MATHLIB4.
+> Any changes to this file require a corresponding PR to mathlib4.
+
 An object is injective iff the preadditive yoneda functor on it preserves epimorphisms.
 -/

f8d8465c

bump to nightly-2023-05-12-14

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

fab1af65

Diff

@@ -36,7 +36,7 @@ namespace Injective
 lean 3 declaration is
   forall {C : Type.{u2}} [_inst_1 : CategoryTheory.Category.{u1, u2} C] [_inst_2 : CategoryTheory.Preadditive.{u1, u2} C _inst_1] (J : C), Iff (CategoryTheory.Injective.{u1, u2} C _inst_1 J) (CategoryTheory.Functor.PreservesEpimorphisms.{u1, u1, u2, succ u1} (Opposite.{succ u2} C) (CategoryTheory.Category.opposite.{u1, u2} C _inst_1) AddCommGroupCat.{u1} AddCommGroupCat.largeCategory.{u1} (CategoryTheory.Functor.obj.{u1, max u2 u1, u2, max u1 u2 (succ u1)} C _inst_1 (CategoryTheory.Functor.{u1, u1, u2, succ u1} (Opposite.{succ u2} C) (CategoryTheory.Category.opposite.{u1, u2} C _inst_1) AddCommGroupCat.{u1} AddCommGroupCat.largeCategory.{u1}) (CategoryTheory.Functor.category.{u1, u1, u2, succ u1} (Opposite.{succ u2} C) (CategoryTheory.Category.opposite.{u1, u2} C _inst_1) AddCommGroupCat.{u1} AddCommGroupCat.largeCategory.{u1}) (CategoryTheory.preadditiveYoneda.{u1, u2} C _inst_1 _inst_2) J))
 but is expected to have type
-  forall {C : Type.{u2}} [_inst_1 : CategoryTheory.Category.{u1, u2} C] [_inst_2 : CategoryTheory.Preadditive.{u1, u2} C _inst_1] (J : C), Iff (CategoryTheory.Injective.{u1, u2} C _inst_1 J) (CategoryTheory.Functor.PreservesEpimorphisms.{u1, u1, u2, succ u1} (Opposite.{succ u2} C) (CategoryTheory.Category.opposite.{u1, u2} C _inst_1) AddCommGroupCat.{u1} AddCommGroupCat.largeCategory.{u1} (Prefunctor.obj.{succ u1, max (succ u1) (succ u2), u2, max (succ u1) u2} C (CategoryTheory.CategoryStruct.toQuiver.{u1, u2} C (CategoryTheory.Category.toCategoryStruct.{u1, u2} C _inst_1)) (CategoryTheory.Functor.{u1, u1, u2, succ u1} (Opposite.{succ u2} C) (CategoryTheory.Category.opposite.{u1, u2} C _inst_1) AddCommGroupCat.{u1} AddCommGroupCat.largeCategory.{u1}) (CategoryTheory.CategoryStruct.toQuiver.{max u2 u1, max u2 (succ u1)} (CategoryTheory.Functor.{u1, u1, u2, succ u1} (Opposite.{succ u2} C) (CategoryTheory.Category.opposite.{u1, u2} C _inst_1) AddCommGroupCat.{u1} AddCommGroupCat.largeCategory.{u1}) (CategoryTheory.Category.toCategoryStruct.{max u2 u1, max u2 (succ u1)} (CategoryTheory.Functor.{u1, u1, u2, succ u1} (Opposite.{succ u2} C) (CategoryTheory.Category.opposite.{u1, u2} C _inst_1) AddCommGroupCat.{u1} AddCommGroupCat.largeCategory.{u1}) (CategoryTheory.Functor.category.{u1, u1, u2, succ u1} (Opposite.{succ u2} C) (CategoryTheory.Category.opposite.{u1, u2} C _inst_1) AddCommGroupCat.{u1} AddCommGroupCat.largeCategory.{u1}))) (CategoryTheory.Functor.toPrefunctor.{u1, max u2 u1, u2, max u2 (succ u1)} C _inst_1 (CategoryTheory.Functor.{u1, u1, u2, succ u1} (Opposite.{succ u2} C) (CategoryTheory.Category.opposite.{u1, u2} C _inst_1) AddCommGroupCat.{u1} AddCommGroupCat.largeCategory.{u1}) (CategoryTheory.Functor.category.{u1, u1, u2, succ u1} (Opposite.{succ u2} C) (CategoryTheory.Category.opposite.{u1, u2} C _inst_1) AddCommGroupCat.{u1} AddCommGroupCat.largeCategory.{u1}) (CategoryTheory.preadditiveYoneda.{u1, u2} C _inst_1 _inst_2)) J))
+  forall {C : Type.{u2}} [_inst_1 : CategoryTheory.Category.{u1, u2} C] [_inst_2 : CategoryTheory.Preadditive.{u1, u2} C _inst_1] (J : C), Iff (CategoryTheory.Injective.{u1, u2} C _inst_1 J) (CategoryTheory.Functor.PreservesEpimorphisms.{u1, u1, u2, succ u1} (Opposite.{succ u2} C) (CategoryTheory.Category.opposite.{u1, u2} C _inst_1) AddCommGroupCat.{u1} instAddCommGroupCatLargeCategory.{u1} (Prefunctor.obj.{succ u1, max (succ u1) (succ u2), u2, max (succ u1) u2} C (CategoryTheory.CategoryStruct.toQuiver.{u1, u2} C (CategoryTheory.Category.toCategoryStruct.{u1, u2} C _inst_1)) (CategoryTheory.Functor.{u1, u1, u2, succ u1} (Opposite.{succ u2} C) (CategoryTheory.Category.opposite.{u1, u2} C _inst_1) AddCommGroupCat.{u1} instAddCommGroupCatLargeCategory.{u1}) (CategoryTheory.CategoryStruct.toQuiver.{max u2 u1, max u2 (succ u1)} (CategoryTheory.Functor.{u1, u1, u2, succ u1} (Opposite.{succ u2} C) (CategoryTheory.Category.opposite.{u1, u2} C _inst_1) AddCommGroupCat.{u1} instAddCommGroupCatLargeCategory.{u1}) (CategoryTheory.Category.toCategoryStruct.{max u2 u1, max u2 (succ u1)} (CategoryTheory.Functor.{u1, u1, u2, succ u1} (Opposite.{succ u2} C) (CategoryTheory.Category.opposite.{u1, u2} C _inst_1) AddCommGroupCat.{u1} instAddCommGroupCatLargeCategory.{u1}) (CategoryTheory.Functor.category.{u1, u1, u2, succ u1} (Opposite.{succ u2} C) (CategoryTheory.Category.opposite.{u1, u2} C _inst_1) AddCommGroupCat.{u1} instAddCommGroupCatLargeCategory.{u1}))) (CategoryTheory.Functor.toPrefunctor.{u1, max u2 u1, u2, max u2 (succ u1)} C _inst_1 (CategoryTheory.Functor.{u1, u1, u2, succ u1} (Opposite.{succ u2} C) (CategoryTheory.Category.opposite.{u1, u2} C _inst_1) AddCommGroupCat.{u1} instAddCommGroupCatLargeCategory.{u1}) (CategoryTheory.Functor.category.{u1, u1, u2, succ u1} (Opposite.{succ u2} C) (CategoryTheory.Category.opposite.{u1, u2} C _inst_1) AddCommGroupCat.{u1} instAddCommGroupCatLargeCategory.{u1}) (CategoryTheory.preadditiveYoneda.{u1, u2} C _inst_1 _inst_2)) J))
 Case conversion may be inaccurate. Consider using '#align category_theory.injective.injective_iff_preserves_epimorphisms_preadditive_yoneda_obj CategoryTheory.Injective.injective_iff_preservesEpimorphisms_preadditiveYoneda_objₓ'. -/
 theorem injective_iff_preservesEpimorphisms_preadditiveYoneda_obj (J : C) :
     Injective J ↔ (preadditiveYoneda.obj J).PreservesEpimorphisms :=

f8d8465c

bump to nightly-2023-05-11-08

mathlib commit https://github.com/leanprover-community/mathlib/commit/28b2a92f2996d28e580450863c130955de0ed398

66e23fb2

Diff

@@ -32,6 +32,12 @@ variable [Preadditive C]
 
 namespace Injective
 
+/- warning: category_theory.injective.injective_iff_preserves_epimorphisms_preadditive_yoneda_obj -> CategoryTheory.Injective.injective_iff_preservesEpimorphisms_preadditiveYoneda_obj is a dubious translation:
+lean 3 declaration is
+  forall {C : Type.{u2}} [_inst_1 : CategoryTheory.Category.{u1, u2} C] [_inst_2 : CategoryTheory.Preadditive.{u1, u2} C _inst_1] (J : C), Iff (CategoryTheory.Injective.{u1, u2} C _inst_1 J) (CategoryTheory.Functor.PreservesEpimorphisms.{u1, u1, u2, succ u1} (Opposite.{succ u2} C) (CategoryTheory.Category.opposite.{u1, u2} C _inst_1) AddCommGroupCat.{u1} AddCommGroupCat.largeCategory.{u1} (CategoryTheory.Functor.obj.{u1, max u2 u1, u2, max u1 u2 (succ u1)} C _inst_1 (CategoryTheory.Functor.{u1, u1, u2, succ u1} (Opposite.{succ u2} C) (CategoryTheory.Category.opposite.{u1, u2} C _inst_1) AddCommGroupCat.{u1} AddCommGroupCat.largeCategory.{u1}) (CategoryTheory.Functor.category.{u1, u1, u2, succ u1} (Opposite.{succ u2} C) (CategoryTheory.Category.opposite.{u1, u2} C _inst_1) AddCommGroupCat.{u1} AddCommGroupCat.largeCategory.{u1}) (CategoryTheory.preadditiveYoneda.{u1, u2} C _inst_1 _inst_2) J))
+but is expected to have type
+  forall {C : Type.{u2}} [_inst_1 : CategoryTheory.Category.{u1, u2} C] [_inst_2 : CategoryTheory.Preadditive.{u1, u2} C _inst_1] (J : C), Iff (CategoryTheory.Injective.{u1, u2} C _inst_1 J) (CategoryTheory.Functor.PreservesEpimorphisms.{u1, u1, u2, succ u1} (Opposite.{succ u2} C) (CategoryTheory.Category.opposite.{u1, u2} C _inst_1) AddCommGroupCat.{u1} AddCommGroupCat.largeCategory.{u1} (Prefunctor.obj.{succ u1, max (succ u1) (succ u2), u2, max (succ u1) u2} C (CategoryTheory.CategoryStruct.toQuiver.{u1, u2} C (CategoryTheory.Category.toCategoryStruct.{u1, u2} C _inst_1)) (CategoryTheory.Functor.{u1, u1, u2, succ u1} (Opposite.{succ u2} C) (CategoryTheory.Category.opposite.{u1, u2} C _inst_1) AddCommGroupCat.{u1} AddCommGroupCat.largeCategory.{u1}) (CategoryTheory.CategoryStruct.toQuiver.{max u2 u1, max u2 (succ u1)} (CategoryTheory.Functor.{u1, u1, u2, succ u1} (Opposite.{succ u2} C) (CategoryTheory.Category.opposite.{u1, u2} C _inst_1) AddCommGroupCat.{u1} AddCommGroupCat.largeCategory.{u1}) (CategoryTheory.Category.toCategoryStruct.{max u2 u1, max u2 (succ u1)} (CategoryTheory.Functor.{u1, u1, u2, succ u1} (Opposite.{succ u2} C) (CategoryTheory.Category.opposite.{u1, u2} C _inst_1) AddCommGroupCat.{u1} AddCommGroupCat.largeCategory.{u1}) (CategoryTheory.Functor.category.{u1, u1, u2, succ u1} (Opposite.{succ u2} C) (CategoryTheory.Category.opposite.{u1, u2} C _inst_1) AddCommGroupCat.{u1} AddCommGroupCat.largeCategory.{u1}))) (CategoryTheory.Functor.toPrefunctor.{u1, max u2 u1, u2, max u2 (succ u1)} C _inst_1 (CategoryTheory.Functor.{u1, u1, u2, succ u1} (Opposite.{succ u2} C) (CategoryTheory.Category.opposite.{u1, u2} C _inst_1) AddCommGroupCat.{u1} AddCommGroupCat.largeCategory.{u1}) (CategoryTheory.Functor.category.{u1, u1, u2, succ u1} (Opposite.{succ u2} C) (CategoryTheory.Category.opposite.{u1, u2} C _inst_1) AddCommGroupCat.{u1} AddCommGroupCat.largeCategory.{u1}) (CategoryTheory.preadditiveYoneda.{u1, u2} C _inst_1 _inst_2)) J))
+Case conversion may be inaccurate. Consider using '#align category_theory.injective.injective_iff_preserves_epimorphisms_preadditive_yoneda_obj CategoryTheory.Injective.injective_iff_preservesEpimorphisms_preadditiveYoneda_objₓ'. -/
 theorem injective_iff_preservesEpimorphisms_preadditiveYoneda_obj (J : C) :
     Injective J ↔ (preadditiveYoneda.obj J).PreservesEpimorphisms :=
   by
@@ -44,6 +50,12 @@ theorem injective_iff_preservesEpimorphisms_preadditiveYoneda_obj (J : C) :
     exact (inferInstance : (preadditive_yoneda.obj J ⋙ forget _).PreservesEpimorphisms)
 #align category_theory.injective.injective_iff_preserves_epimorphisms_preadditive_yoneda_obj CategoryTheory.Injective.injective_iff_preservesEpimorphisms_preadditiveYoneda_obj
 
+/- warning: category_theory.injective.injective_iff_preserves_epimorphisms_preadditive_yoneda_obj' -> CategoryTheory.Injective.injective_iff_preservesEpimorphisms_preadditive_yoneda_obj' is a dubious translation:
+lean 3 declaration is
+  forall {C : Type.{u2}} [_inst_1 : CategoryTheory.Category.{u1, u2} C] [_inst_2 : CategoryTheory.Preadditive.{u1, u2} C _inst_1] (J : C), Iff (CategoryTheory.Injective.{u1, u2} C _inst_1 J) (CategoryTheory.Functor.PreservesEpimorphisms.{u1, u1, u2, succ u1} (Opposite.{succ u2} C) (CategoryTheory.Category.opposite.{u1, u2} C _inst_1) (ModuleCat.{u1, u1} (CategoryTheory.End.{u1, u2} C (CategoryTheory.Category.toCategoryStruct.{u1, u2} C _inst_1) J) (CategoryTheory.Preadditive.CategoryTheory.End.ring.{u1, u2} C _inst_1 _inst_2 J)) (ModuleCat.moduleCategory.{u1, u1} (CategoryTheory.End.{u1, u2} C (CategoryTheory.Category.toCategoryStruct.{u1, u2} C _inst_1) J) (CategoryTheory.Preadditive.CategoryTheory.End.ring.{u1, u2} C _inst_1 _inst_2 J)) (CategoryTheory.preadditiveYonedaObj.{u1, u2} C _inst_1 _inst_2 J))
+but is expected to have type
+  forall {C : Type.{u2}} [_inst_1 : CategoryTheory.Category.{u1, u2} C] [_inst_2 : CategoryTheory.Preadditive.{u1, u2} C _inst_1] (J : C), Iff (CategoryTheory.Injective.{u1, u2} C _inst_1 J) (CategoryTheory.Functor.PreservesEpimorphisms.{u1, u1, u2, succ u1} (Opposite.{succ u2} C) (CategoryTheory.Category.opposite.{u1, u2} C _inst_1) (ModuleCat.{u1, u1} (CategoryTheory.End.{u1, u2} C (CategoryTheory.Category.toCategoryStruct.{u1, u2} C _inst_1) J) (CategoryTheory.Preadditive.instRingEndToCategoryStruct.{u1, u2} C _inst_1 _inst_2 J)) (ModuleCat.moduleCategory.{u1, u1} (CategoryTheory.End.{u1, u2} C (CategoryTheory.Category.toCategoryStruct.{u1, u2} C _inst_1) J) (CategoryTheory.Preadditive.instRingEndToCategoryStruct.{u1, u2} C _inst_1 _inst_2 J)) (CategoryTheory.preadditiveYonedaObj.{u1, u2} C _inst_1 _inst_2 J))
+Case conversion may be inaccurate. Consider using '#align category_theory.injective.injective_iff_preserves_epimorphisms_preadditive_yoneda_obj' CategoryTheory.Injective.injective_iff_preservesEpimorphisms_preadditive_yoneda_obj'ₓ'. -/
 theorem injective_iff_preservesEpimorphisms_preadditive_yoneda_obj' (J : C) :
     Injective J ↔ (preadditiveYonedaObj J).PreservesEpimorphisms :=
   by

f8d8465c

bump to nightly-2023-03-31-02

mathlib commit https://github.com/leanprover-community/mathlib/commit/ce11c3c2a285bbe6937e26d9792fda4e51f3fe1a

c3ffa91f

Changes in mathlib4

mathlib3

mathlib4

f8d8465c

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

@@ -2,17 +2,14 @@
 Copyright (c) 2020 Markus Himmel. All rights reserved.
 Released under Apache 2.0 license as described in the file LICENSE.
 Authors: Markus Himmel, Scott Morrison
-
-! This file was ported from Lean 3 source module category_theory.preadditive.yoneda.injective
-! leanprover-community/mathlib commit f8d8465c3c392a93b9ed226956e26dee00975946
-! Please do not edit these lines, except to modify the commit id
-! if you have ported upstream changes.
 -/
 import Mathlib.CategoryTheory.Preadditive.Yoneda.Basic
 import Mathlib.CategoryTheory.Preadditive.Injective
 import Mathlib.Algebra.Category.GroupCat.EpiMono
 import Mathlib.Algebra.Category.ModuleCat.EpiMono
 
+#align_import category_theory.preadditive.yoneda.injective from "leanprover-community/mathlib"@"f8d8465c3c392a93b9ed226956e26dee00975946"
+
 /-!
 An object is injective iff the preadditive yoneda functor on it preserves epimorphisms.
 -/

f8d8465c

chore: cleanup whitespace (#5988)

Grepping for [^ .:{-] [^ :] and reviewing the results. Once I started I couldn't stop. :-)

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

12343aa5

Diff

@@ -36,7 +36,7 @@ theorem injective_iff_preservesEpimorphisms_preadditiveYoneda_obj (J : C) :
     Injective J ↔ (preadditiveYoneda.obj J).PreservesEpimorphisms := by
   rw [injective_iff_preservesEpimorphisms_yoneda_obj]
   refine'
-    ⟨fun h : (preadditiveYoneda.obj J ⋙  (forget AddCommGroupCat)).PreservesEpimorphisms => _, _⟩
+    ⟨fun h : (preadditiveYoneda.obj J ⋙ (forget AddCommGroupCat)).PreservesEpimorphisms => _, _⟩
   · exact
       Functor.preservesEpimorphisms_of_preserves_of_reflects (preadditiveYoneda.obj J) (forget _)
   · intro
@@ -59,4 +59,3 @@ end Injective
 end Preadditive
 
 end CategoryTheory
-

f8d8465c

feat: port CategoryTheory.Preadditive.Yoneda.Injective (#3891)

Co-authored-by: Matthew Robert Ballard <100034030+mattrobball@users.noreply.github.com>

f80d3b8b

`category_theory.preadditive.yoneda.injective` ⟷ `Mathlib.CategoryTheory.Preadditive.Yoneda.Injective`

Changes since the initial port

Changes in mathlib3

Changes in mathlib3port

Changes in mathlib4

Dependencies 8 + 512

category_theory.preadditive.yoneda.injective ⟷ Mathlib.CategoryTheory.Preadditive.Yoneda.Injective

Changes since the initial port

Changes in mathlib3

Changes in mathlib3port

Changes in mathlib4

Dependencies 8 + 512

`category_theory.preadditive.yoneda.injective` ⟷ `Mathlib.CategoryTheory.Preadditive.Yoneda.Injective`