category_theory.abelian.generator | 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

f0c8bf92

(last sync)

Changes in mathlib3port

mathlib3

mathlib3port

6cf59007

bump to nightly-2023-09-24-06

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

5655435f

Diff

@@ -3,11 +3,11 @@ Copyright (c) 2022 Markus Himmel. All rights reserved.
 Released under Apache 2.0 license as described in the file LICENSE.
 Authors: Markus Himmel
 -/
-import Mathbin.CategoryTheory.Abelian.Subobject
-import Mathbin.CategoryTheory.Limits.EssentiallySmall
-import Mathbin.CategoryTheory.Preadditive.Injective
-import Mathbin.CategoryTheory.Preadditive.Generator
-import Mathbin.CategoryTheory.Abelian.Opposite
+import CategoryTheory.Abelian.Subobject
+import CategoryTheory.Limits.EssentiallySmall
+import CategoryTheory.Preadditive.Injective
+import CategoryTheory.Preadditive.Generator
+import CategoryTheory.Abelian.Opposite
 
 #align_import category_theory.abelian.generator from "leanprover-community/mathlib"@"6cf5900728239efa287df7761ec2a1ac9cf39b29"

6cf59007

bump to nightly-2023-07-20-09

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

9c56d0dd

Diff

@@ -2,11 +2,6 @@
 Copyright (c) 2022 Markus Himmel. All rights reserved.
 Released under Apache 2.0 license as described in the file LICENSE.
 Authors: Markus Himmel
-
-! This file was ported from Lean 3 source module category_theory.abelian.generator
-! leanprover-community/mathlib commit 6cf5900728239efa287df7761ec2a1ac9cf39b29
-! Please do not edit these lines, except to modify the commit id
-! if you have ported upstream changes.
 -/
 import Mathbin.CategoryTheory.Abelian.Subobject
 import Mathbin.CategoryTheory.Limits.EssentiallySmall
@@ -14,6 +9,8 @@ import Mathbin.CategoryTheory.Preadditive.Injective
 import Mathbin.CategoryTheory.Preadditive.Generator
 import Mathbin.CategoryTheory.Abelian.Opposite
 
+#align_import category_theory.abelian.generator from "leanprover-community/mathlib"@"6cf5900728239efa287df7761ec2a1ac9cf39b29"
+
 /-!
 # A complete abelian category with enough injectives and a separator has an injective coseparator

6cf59007

bump to nightly-2023-05-14-02

mathlib commit https://github.com/leanprover-community/mathlib/commit/e3fb84046afd187b710170887195d50bada934ee

fbb256bf

Diff

@@ -4,7 +4,7 @@ Released under Apache 2.0 license as described in the file LICENSE.
 Authors: Markus Himmel
 
 ! This file was ported from Lean 3 source module category_theory.abelian.generator
-! leanprover-community/mathlib commit f0c8bf9245297a541f468be517f1bde6195105e9
+! leanprover-community/mathlib commit 6cf5900728239efa287df7761ec2a1ac9cf39b29
 ! Please do not edit these lines, except to modify the commit id
 ! if you have ported upstream changes.
 -/
@@ -17,6 +17,9 @@ import Mathbin.CategoryTheory.Abelian.Opposite
 /-!
 # A complete abelian category with enough injectives and a separator has an injective coseparator
 
+> THIS FILE IS SYNCHRONIZED WITH MATHLIB4.
+> Any changes to this file require a corresponding PR to mathlib4.
+
 ## Future work
 * Once we know that Grothendieck categories have enough injectives, we can use this to conclude
   that Grothendieck categories have an injective coseparator.

f0c8bf92

bump to nightly-2023-05-12-16

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

19bd848a

Diff

@@ -35,6 +35,7 @@ namespace CategoryTheory.Abelian
 
 variable {C : Type u} [Category.{v} C] [Abelian C]
 
+#print CategoryTheory.Abelian.has_injective_coseparator /-
 theorem has_injective_coseparator [HasLimits C] [EnoughInjectives C] (G : C) (hG : IsSeparator G) :
     ∃ G : C, Injective G ∧ IsCoseparator G :=
   by
@@ -57,13 +58,16 @@ theorem has_injective_coseparator [HasLimits C] [EnoughInjectives C] (G : C) (hG
         rw [← injective.comp_factor_thru q (limits.image.ι (h ≫ f)), limits.image.fac_assoc,
           category.assoc, hf, comp_zero])
 #align category_theory.abelian.has_injective_coseparator CategoryTheory.Abelian.has_injective_coseparator
+-/
 
+#print CategoryTheory.Abelian.has_projective_separator /-
 theorem has_projective_separator [HasColimits C] [EnoughProjectives C] (G : C)
     (hG : IsCoseparator G) : ∃ G : C, Projective G ∧ IsSeparator G :=
   by
   obtain ⟨T, hT₁, hT₂⟩ := has_injective_coseparator (op G) ((is_separator_op_iff _).2 hG)
   exact ⟨unop T, inferInstance, (is_separator_unop_iff _).2 hT₂⟩
 #align category_theory.abelian.has_projective_separator CategoryTheory.Abelian.has_projective_separator
+-/
 
 end CategoryTheory.Abelian

f0c8bf92

bump to nightly-2023-05-05-03

mathlib commit https://github.com/leanprover-community/mathlib/commit/738054fa93d43512da144ec45ce799d18fd44248

c17f6f14

Diff

@@ -4,7 +4,7 @@ Released under Apache 2.0 license as described in the file LICENSE.
 Authors: Markus Himmel
 
 ! This file was ported from Lean 3 source module category_theory.abelian.generator
-! leanprover-community/mathlib commit 09f981f72d43749f1fa072deade828d9c1e185bb
+! leanprover-community/mathlib commit f0c8bf9245297a541f468be517f1bde6195105e9
 ! Please do not edit these lines, except to modify the commit id
 ! if you have ported upstream changes.
 -/
@@ -12,7 +12,7 @@ import Mathbin.CategoryTheory.Abelian.Subobject
 import Mathbin.CategoryTheory.Limits.EssentiallySmall
 import Mathbin.CategoryTheory.Preadditive.Injective
 import Mathbin.CategoryTheory.Preadditive.Generator
-import Mathbin.CategoryTheory.Preadditive.Yoneda.Limits
+import Mathbin.CategoryTheory.Abelian.Opposite
 
 /-!
 # A complete abelian category with enough injectives and a separator has an injective coseparator

09f981f7

bump to nightly-2023-03-09-03

mathlib commit https://github.com/leanprover-community/mathlib/commit/21e3562c5e12d846c7def5eff8cdbc520d7d4936

061741a1

Diff

@@ -4,7 +4,7 @@ Released under Apache 2.0 license as described in the file LICENSE.
 Authors: Markus Himmel
 
 ! This file was ported from Lean 3 source module category_theory.abelian.generator
-! leanprover-community/mathlib commit 53e5dd300e5d752bda3516889049f7c35f3d4427
+! leanprover-community/mathlib commit 09f981f72d43749f1fa072deade828d9c1e185bb
 ! Please do not edit these lines, except to modify the commit id
 ! if you have ported upstream changes.
 -/
@@ -12,6 +12,7 @@ import Mathbin.CategoryTheory.Abelian.Subobject
 import Mathbin.CategoryTheory.Limits.EssentiallySmall
 import Mathbin.CategoryTheory.Preadditive.Injective
 import Mathbin.CategoryTheory.Preadditive.Generator
+import Mathbin.CategoryTheory.Preadditive.Yoneda.Limits
 
 /-!
 # A complete abelian category with enough injectives and a separator has an injective coseparator

53e5dd30

bump to nightly-2023-02-21-16

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

1107b979

Changes in mathlib4

mathlib3

mathlib4

f0c8bf92

chore: remove stream-of-consciousness uses of have, replace and suffices (#10640)

No changes to tactic file, it's just boring fixes throughout the library.

This follows on from #6964.

Co-authored-by: sgouezel <sebastien.gouezel@univ-rennes1.fr> Co-authored-by: Eric Wieser <wieser.eric@gmail.com>

a13e8040

Diff

@@ -39,8 +39,8 @@ theorem has_injective_coseparator [HasLimits C] [EnoughInjectives C] (G : C) (hG
   let T : C := Injective.under (piObj fun P : Subobject (op G) => unop P)
   refine' ⟨T, inferInstance, (Preadditive.isCoseparator_iff _).2 fun X Y f hf => _⟩
   refine' (Preadditive.isSeparator_iff _).1 hG _ fun h => _
-  suffices hh : factorThruImage (h ≫ f) = 0
-  · rw [← Limits.image.fac (h ≫ f), hh, zero_comp]
+  suffices hh : factorThruImage (h ≫ f) = 0 by
+    rw [← Limits.image.fac (h ≫ f), hh, zero_comp]
   let R := Subobject.mk (factorThruImage (h ≫ f)).op
   let q₁ : image (h ≫ f) ⟶ unop R :=
     (Subobject.underlyingIso (factorThruImage (h ≫ f)).op).unop.hom

f0c8bf92

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

@@ -2,11 +2,6 @@
 Copyright (c) 2022 Markus Himmel. All rights reserved.
 Released under Apache 2.0 license as described in the file LICENSE.
 Authors: Markus Himmel
-
-! This file was ported from Lean 3 source module category_theory.abelian.generator
-! leanprover-community/mathlib commit f0c8bf9245297a541f468be517f1bde6195105e9
-! Please do not edit these lines, except to modify the commit id
-! if you have ported upstream changes.
 -/
 import Mathlib.CategoryTheory.Abelian.Subobject
 import Mathlib.CategoryTheory.Limits.EssentiallySmall
@@ -14,6 +9,8 @@ import Mathlib.CategoryTheory.Preadditive.Injective
 import Mathlib.CategoryTheory.Preadditive.Generator
 import Mathlib.CategoryTheory.Abelian.Opposite
 
+#align_import category_theory.abelian.generator from "leanprover-community/mathlib"@"f0c8bf9245297a541f468be517f1bde6195105e9"
+
 /-!
 # A complete abelian category with enough injectives and a separator has an injective coseparator

f0c8bf92

feat: port CategoryTheory.Abelian.Generator (#3924)

0e1376f3

`category_theory.abelian.generator` ⟷ `Mathlib.CategoryTheory.Abelian.Generator`

Changes since the initial port

Changes in mathlib3

Changes in mathlib3port

Changes in mathlib4

Dependencies 8 + 493

category_theory.abelian.generator ⟷ Mathlib.CategoryTheory.Abelian.Generator

Changes since the initial port

Changes in mathlib3

Changes in mathlib3port

Changes in mathlib4

Dependencies 8 + 493

`category_theory.abelian.generator` ⟷ `Mathlib.CategoryTheory.Abelian.Generator`