algebra.category.fgModule.limits | 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

19a70dce

(last sync)

Changes in mathlib3port

mathlib3

mathlib3port

d0b19368

bump to nightly-2024-04-06-08

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

e34029c9

Diff

@@ -3,10 +3,10 @@ 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.FgModule.Basic
-import Algebra.Category.Module.Limits
-import Algebra.Category.Module.Products
-import Algebra.Category.Module.EpiMono
+import Algebra.Category.FGModuleCat.Basic
+import Algebra.Category.ModuleCat.Limits
+import Algebra.Category.ModuleCat.Products
+import Algebra.Category.ModuleCat.EpiMono
 import CategoryTheory.Limits.Creates
 import CategoryTheory.Limits.Shapes.FiniteLimits
 import CategoryTheory.Limits.Constructions.LimitsOfProductsAndEqualizers

d0b19368

bump to nightly-2023-09-24-06

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

5655435f

Diff

@@ -3,13 +3,13 @@ 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.FgModule.Basic
-import Mathbin.Algebra.Category.Module.Limits
-import Mathbin.Algebra.Category.Module.Products
-import Mathbin.Algebra.Category.Module.EpiMono
-import Mathbin.CategoryTheory.Limits.Creates
-import Mathbin.CategoryTheory.Limits.Shapes.FiniteLimits
-import Mathbin.CategoryTheory.Limits.Constructions.LimitsOfProductsAndEqualizers
+import Algebra.Category.FgModule.Basic
+import Algebra.Category.Module.Limits
+import Algebra.Category.Module.Products
+import Algebra.Category.Module.EpiMono
+import CategoryTheory.Limits.Creates
+import CategoryTheory.Limits.Shapes.FiniteLimits
+import CategoryTheory.Limits.Constructions.LimitsOfProductsAndEqualizers
 
 #align_import algebra.category.fgModule.limits from "leanprover-community/mathlib"@"d0b1936853671209a866fa35b9e54949c81116e2"

d0b19368

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 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.fgModule.limits
-! leanprover-community/mathlib commit d0b1936853671209a866fa35b9e54949c81116e2
-! Please do not edit these lines, except to modify the commit id
-! if you have ported upstream changes.
 -/
 import Mathbin.Algebra.Category.FgModule.Basic
 import Mathbin.Algebra.Category.Module.Limits
@@ -16,6 +11,8 @@ import Mathbin.CategoryTheory.Limits.Creates
 import Mathbin.CategoryTheory.Limits.Shapes.FiniteLimits
 import Mathbin.CategoryTheory.Limits.Constructions.LimitsOfProductsAndEqualizers
 
+#align_import algebra.category.fgModule.limits from "leanprover-community/mathlib"@"d0b1936853671209a866fa35b9e54949c81116e2"
+
 /-!
 # `forget₂ (fgModule K) (Module K)` creates all finite limits.

d0b19368

bump to nightly-2023-07-04-01

mathlib commit https://github.com/leanprover-community/mathlib/commit/728ef9dbb281241906f25cbeb30f90d83e0bb451

05318d71

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.fgModule.limits
-! leanprover-community/mathlib commit 19a70dceb9dff0994b92d2dd049de7d84d28112b
+! leanprover-community/mathlib commit d0b1936853671209a866fa35b9e54949c81116e2
 ! Please do not edit these lines, except to modify the commit id
 ! if you have ported upstream changes.
 -/
@@ -19,6 +19,9 @@ import Mathbin.CategoryTheory.Limits.Constructions.LimitsOfProductsAndEqualizers
 /-!
 # `forget₂ (fgModule K) (Module K)` creates all finite limits.
 
+> THIS FILE IS SYNCHRONIZED WITH MATHLIB4.
+> Any changes to this file require a corresponding PR to mathlib4.
+
 And hence `fgModule K` has all finite limits.
 
 ## Future work

19a70dce

bump to nightly-2023-06-29-15

mathlib commit https://github.com/leanprover-community/mathlib/commit/8b981918a93bc45a8600de608cde7944a80d92b9

ab5a2ea0

Diff

@@ -60,6 +60,7 @@ instance (F : J ⥤ FGModuleCat k) :
     (limit_subobject_product (F ⋙ forget₂ (FGModuleCat k) (ModuleCat.{v} k)))
     ((ModuleCat.mono_iff_injective _).1 (by infer_instance))
 
+#print FGModuleCat.forget₂CreatesLimit /-
 /-- The forgetful functor from `fgModule k` to `Module k` creates all finite limits. -/
 def forget₂CreatesLimit (F : J ⥤ FGModuleCat k) :
     CreatesLimit F (forget₂ (FGModuleCat k) (ModuleCat.{v} k)) :=
@@ -67,6 +68,7 @@ def forget₂CreatesLimit (F : J ⥤ FGModuleCat k) :
     ⟨(limit (F ⋙ forget₂ (FGModuleCat k) (ModuleCat.{v} k)) : ModuleCat.{v} k), by infer_instance⟩
     (Iso.refl _)
 #align fgModule.forget₂_creates_limit FGModuleCat.forget₂CreatesLimit
+-/
 
 instance : CreatesLimitsOfShape J (forget₂ (FGModuleCat k) (ModuleCat.{v} k))
     where CreatesLimit F := forget₂CreatesLimit F

19a70dce

bump to nightly-2023-06-26-07

mathlib commit https://github.com/leanprover-community/mathlib/commit/fdc286cc6967a012f41b87f76dcd2797b53152af

efc283d6

Diff

@@ -38,7 +38,7 @@ open CategoryTheory
 
 open CategoryTheory.Limits
 
-namespace FgModule
+namespace FGModuleCat
 
 variable {J : Type} [SmallCategory J] [FinCategory J]
 
@@ -52,32 +52,32 @@ instance {J : Type} [Fintype J] (Z : J → ModuleCat.{v} k) [∀ j, FiniteDimens
 
 /-- Finite limits of finite dimensional vectors spaces are finite dimensional,
 because we can realise them as subobjects of a finite product. -/
-instance (F : J ⥤ FgModule k) :
-    FiniteDimensional k (limit (F ⋙ forget₂ (FgModule k) (ModuleCat.{v} k)) : ModuleCat.{v} k) :=
-  haveI : ∀ j, FiniteDimensional k ((F ⋙ forget₂ (FgModule k) (ModuleCat.{v} k)).obj j) := by
+instance (F : J ⥤ FGModuleCat k) :
+    FiniteDimensional k (limit (F ⋙ forget₂ (FGModuleCat k) (ModuleCat.{v} k)) : ModuleCat.{v} k) :=
+  haveI : ∀ j, FiniteDimensional k ((F ⋙ forget₂ (FGModuleCat k) (ModuleCat.{v} k)).obj j) := by
     intro j; change FiniteDimensional k (F.obj j).obj; infer_instance
   FiniteDimensional.of_injective
-    (limit_subobject_product (F ⋙ forget₂ (FgModule k) (ModuleCat.{v} k)))
+    (limit_subobject_product (F ⋙ forget₂ (FGModuleCat k) (ModuleCat.{v} k)))
     ((ModuleCat.mono_iff_injective _).1 (by infer_instance))
 
 /-- The forgetful functor from `fgModule k` to `Module k` creates all finite limits. -/
-def forget₂CreatesLimit (F : J ⥤ FgModule k) :
-    CreatesLimit F (forget₂ (FgModule k) (ModuleCat.{v} k)) :=
+def forget₂CreatesLimit (F : J ⥤ FGModuleCat k) :
+    CreatesLimit F (forget₂ (FGModuleCat k) (ModuleCat.{v} k)) :=
   createsLimitOfFullyFaithfulOfIso
-    ⟨(limit (F ⋙ forget₂ (FgModule k) (ModuleCat.{v} k)) : ModuleCat.{v} k), by infer_instance⟩
+    ⟨(limit (F ⋙ forget₂ (FGModuleCat k) (ModuleCat.{v} k)) : ModuleCat.{v} k), by infer_instance⟩
     (Iso.refl _)
-#align fgModule.forget₂_creates_limit FgModule.forget₂CreatesLimit
+#align fgModule.forget₂_creates_limit FGModuleCat.forget₂CreatesLimit
 
-instance : CreatesLimitsOfShape J (forget₂ (FgModule k) (ModuleCat.{v} k))
+instance : CreatesLimitsOfShape J (forget₂ (FGModuleCat k) (ModuleCat.{v} k))
     where CreatesLimit F := forget₂CreatesLimit F
 
-instance : HasFiniteLimits (FgModule k)
+instance : HasFiniteLimits (FGModuleCat k)
     where out J _ _ :=
     has_limits_of_shape_of_has_limits_of_shape_creates_limits_of_shape
-      (forget₂ (FgModule k) (ModuleCat.{v} k))
+      (forget₂ (FGModuleCat k) (ModuleCat.{v} k))
 
-instance : PreservesFiniteLimits (forget₂ (FgModule k) (ModuleCat.{v} k))
+instance : PreservesFiniteLimits (forget₂ (FGModuleCat k) (ModuleCat.{v} k))
     where PreservesFiniteLimits J _ _ := inferInstance
 
-end FgModule
+end FGModuleCat

19a70dce

bump to nightly-2023-05-28-04

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

6797a637

Diff

@@ -46,10 +46,7 @@ variable {k : Type v} [Field k]
 
 instance {J : Type} [Fintype J] (Z : J → ModuleCat.{v} k) [∀ j, FiniteDimensional k (Z j)] :
     FiniteDimensional k (∏ fun j => Z j : ModuleCat.{v} k) :=
-  haveI : FiniteDimensional k (ModuleCat.of k (∀ j, Z j)) :=
-    by
-    dsimp
-    infer_instance
+  haveI : FiniteDimensional k (ModuleCat.of k (∀ j, Z j)) := by dsimp; infer_instance
   FiniteDimensional.of_injective (ModuleCat.piIsoPi _).Hom
     ((ModuleCat.mono_iff_injective _).1 (by infer_instance))
 
@@ -57,11 +54,8 @@ instance {J : Type} [Fintype J] (Z : J → ModuleCat.{v} k) [∀ j, FiniteDimens
 because we can realise them as subobjects of a finite product. -/
 instance (F : J ⥤ FgModule k) :
     FiniteDimensional k (limit (F ⋙ forget₂ (FgModule k) (ModuleCat.{v} k)) : ModuleCat.{v} k) :=
-  haveI : ∀ j, FiniteDimensional k ((F ⋙ forget₂ (FgModule k) (ModuleCat.{v} k)).obj j) :=
-    by
-    intro j
-    change FiniteDimensional k (F.obj j).obj
-    infer_instance
+  haveI : ∀ j, FiniteDimensional k ((F ⋙ forget₂ (FgModule k) (ModuleCat.{v} k)).obj j) := by
+    intro j; change FiniteDimensional k (F.obj j).obj; infer_instance
   FiniteDimensional.of_injective
     (limit_subobject_product (F ⋙ forget₂ (FgModule k) (ModuleCat.{v} k)))
     ((ModuleCat.mono_iff_injective _).1 (by infer_instance))

19a70dce

bump to nightly-2023-02-21-16

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

1107b979

Changes in mathlib4

mathlib3

mathlib4

19a70dce

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

Empty lines were removed by executing the following Python script twice

import os
import re


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

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

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

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

75c86f04

Diff

@@ -37,7 +37,6 @@ open CategoryTheory.Limits
 namespace FGModuleCat
 
 variable {J : Type} [SmallCategory J] [FinCategory J]
-
 variable {k : Type v} [Field k]
 
 instance {J : Type} [Finite J] (Z : J → ModuleCat.{v} k) [∀ j, FiniteDimensional k (Z j)] :

19a70dce

chore(Algebra/Category): Fintype -> Finite (#10290)

3fea559c

Diff

@@ -40,7 +40,7 @@ variable {J : Type} [SmallCategory J] [FinCategory J]
 
 variable {k : Type v} [Field k]
 
-instance {J : Type} [Fintype J] (Z : J → ModuleCat.{v} k) [∀ j, FiniteDimensional k (Z j)] :
+instance {J : Type} [Finite J] (Z : J → ModuleCat.{v} k) [∀ j, FiniteDimensional k (Z j)] :
     FiniteDimensional k (∏ fun j => Z j : ModuleCat.{v} k) :=
   haveI : FiniteDimensional k (ModuleCat.of k (∀ j, Z j)) := by unfold ModuleCat.of; infer_instance
   FiniteDimensional.of_injective (ModuleCat.piIsoPi _).hom

19a70dce

feat(RepresentationTheory/Action): add more limit properties of Action V G and Action.forget V G (#9603)

Adds instances on limit properties of Action V G and Action.forget V G.

Co-authored-by: Joël Riou <joel.riou@universite-paris-saclay.fr>

e659b1b3

Diff

@@ -68,10 +68,14 @@ set_option linter.uppercaseLean3 false in
 instance : CreatesLimitsOfShape J (forget₂ (FGModuleCat k) (ModuleCat.{v} k)) where
   CreatesLimit {F} := forget₂CreatesLimit F
 
-instance : HasFiniteLimits (FGModuleCat k) where
-  out _ _ _ := hasLimitsOfShape_of_hasLimitsOfShape_createsLimitsOfShape
+instance (J : Type) [Category J] [FinCategory J] :
+    HasLimitsOfShape J (FGModuleCat.{v} k) :=
+  hasLimitsOfShape_of_hasLimitsOfShape_createsLimitsOfShape
     (forget₂ (FGModuleCat k) (ModuleCat.{v} k))
 
+instance : HasFiniteLimits (FGModuleCat k) where
+  out _ _ _ := inferInstance
+
 instance : PreservesFiniteLimits (forget₂ (FGModuleCat k) (ModuleCat.{v} k)) where
   preservesFiniteLimits _ _ _ := inferInstance

19a70dce

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 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.fgModule.limits
-! leanprover-community/mathlib commit 19a70dceb9dff0994b92d2dd049de7d84d28112b
-! Please do not edit these lines, except to modify the commit id
-! if you have ported upstream changes.
 -/
 import Mathlib.Algebra.Category.FGModuleCat.Basic
 import Mathlib.Algebra.Category.ModuleCat.Limits
@@ -16,6 +11,8 @@ import Mathlib.CategoryTheory.Limits.Creates
 import Mathlib.CategoryTheory.Limits.Shapes.FiniteLimits
 import Mathlib.CategoryTheory.Limits.Constructions.LimitsOfProductsAndEqualizers
 
+#align_import algebra.category.fgModule.limits from "leanprover-community/mathlib"@"19a70dceb9dff0994b92d2dd049de7d84d28112b"
+
 /-!
 # `forget₂ (FGModuleCat K) (ModuleCat K)` creates all finite limits.

19a70dce

feat: port Algebra.Category.FGModuleCat.Limits (#5519)

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

5e744e38

`algebra.category.fgModule.limits` ⟷ `Mathlib.Algebra.Category.FGModuleCat.Limits`

Changes since the initial port

Changes in mathlib3

Changes in mathlib3port

Changes in mathlib4

Dependencies 11 + 700

algebra.category.fgModule.limits ⟷ Mathlib.Algebra.Category.FGModuleCat.Limits

Changes since the initial port

Changes in mathlib3

Changes in mathlib3port

Changes in mathlib4

Dependencies 11 + 700

`algebra.category.fgModule.limits` ⟷ `Mathlib.Algebra.Category.FGModuleCat.Limits`