algebra.category.Module.algebra | 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

1c775cc6

(last sync)

Changes in mathlib3port

mathlib3

mathlib3port

6b31d1ee

bump to nightly-2024-04-06-08

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

e34029c9

Diff

@@ -5,7 +5,7 @@ Authors: Scott Morrison
 -/
 import Algebra.Algebra.RestrictScalars
 import CategoryTheory.Linear.Basic
-import Algebra.Category.Module.Basic
+import Algebra.Category.ModuleCat.Basic
 
 #align_import algebra.category.Module.algebra from "leanprover-community/mathlib"@"6b31d1eebd64eab86d5bd9936bfaada6ca8b5842"

6b31d1ee

bump to nightly-2023-09-24-06

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

5655435f

Diff

@@ -3,9 +3,9 @@ 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.Algebra.RestrictScalars
-import Mathbin.CategoryTheory.Linear.Basic
-import Mathbin.Algebra.Category.Module.Basic
+import Algebra.Algebra.RestrictScalars
+import CategoryTheory.Linear.Basic
+import Algebra.Category.Module.Basic
 
 #align_import algebra.category.Module.algebra from "leanprover-community/mathlib"@"6b31d1eebd64eab86d5bd9936bfaada6ca8b5842"

6b31d1ee

bump to nightly-2023-07-20-09

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

9c56d0dd

Diff

@@ -2,16 +2,13 @@
 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.algebra
-! leanprover-community/mathlib commit 6b31d1eebd64eab86d5bd9936bfaada6ca8b5842
-! Please do not edit these lines, except to modify the commit id
-! if you have ported upstream changes.
 -/
 import Mathbin.Algebra.Algebra.RestrictScalars
 import Mathbin.CategoryTheory.Linear.Basic
 import Mathbin.Algebra.Category.Module.Basic
 
+#align_import algebra.category.Module.algebra from "leanprover-community/mathlib"@"6b31d1eebd64eab86d5bd9936bfaada6ca8b5842"
+
 /-!
 # Additional typeclass for modules over an algebra

6b31d1ee

bump to nightly-2023-06-13-21

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

829520ac

Diff

@@ -69,8 +69,10 @@ attribute [scoped instance] ModuleCat.isScalarTower_of_algebra_moduleCat
 -- We verify that the morphism spaces become `k`-modules.
 example (M N : ModuleCat.{v} A) : Module k (M ⟶ N) := by infer_instance
 
+#print ModuleCat.linearOverField /-
 instance linearOverField : Linear k (ModuleCat.{v} A) where homModule M N := by infer_instance
 #align Module.linear_over_field ModuleCat.linearOverField
+-/
 
 end ModuleCat

6b31d1ee

bump to nightly-2023-06-10-03

mathlib commit https://github.com/leanprover-community/mathlib/commit/a3e83f0fa4391c8740f7d773a7a9b74e311ae2a3

e13a28eb

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.algebra
-! leanprover-community/mathlib commit 1c775cc661988d96c477aa4ca6f7b5641a2a924b
+! leanprover-community/mathlib commit 6b31d1eebd64eab86d5bd9936bfaada6ca8b5842
 ! Please do not edit these lines, except to modify the commit id
 ! if you have ported upstream changes.
 -/
@@ -15,6 +15,9 @@ import Mathbin.Algebra.Category.Module.Basic
 /-!
 # Additional typeclass for modules over an algebra
 
+> THIS FILE IS SYNCHRONIZED WITH MATHLIB4.
+> Any changes to this file require a corresponding PR to mathlib4.
+
 For an object in `M : Module A`, where `A` is a `k`-algebra,
 we provide additional typeclasses on the underlying type `M`,
 namely `module k M` and `is_scalar_tower k A M`.

1c775cc6

bump to nightly-2023-06-07-23

mathlib commit https://github.com/leanprover-community/mathlib/commit/58a272265b5e05f258161260dd2c5d247213cbd3

c2a08841

Diff

@@ -45,17 +45,21 @@ variable {k : Type u} [Field k]
 
 variable {A : Type w} [Ring A] [Algebra k A]
 
+#print ModuleCat.moduleOfAlgebraModule /-
 /-- Type synonym for considering a module over a `k`-algebra as a `k`-module.
 -/
 def moduleOfAlgebraModule (M : ModuleCat.{v} A) : Module k M :=
   RestrictScalars.module k A M
 #align Module.module_of_algebra_Module ModuleCat.moduleOfAlgebraModule
+-/
 
 attribute [scoped instance] ModuleCat.moduleOfAlgebraModule
 
+#print ModuleCat.isScalarTower_of_algebra_moduleCat /-
 theorem isScalarTower_of_algebra_moduleCat (M : ModuleCat.{v} A) : IsScalarTower k A M :=
   RestrictScalars.isScalarTower k A M
 #align Module.is_scalar_tower_of_algebra_Module ModuleCat.isScalarTower_of_algebra_moduleCat
+-/
 
 attribute [scoped instance] ModuleCat.isScalarTower_of_algebra_moduleCat

1c775cc6

bump to nightly-2023-03-31-02

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

c3ffa91f

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.algebra
-! leanprover-community/mathlib commit 4ed0bcaef698011b0692b93a042a2282f490f6b6
+! leanprover-community/mathlib commit 1c775cc661988d96c477aa4ca6f7b5641a2a924b
 ! Please do not edit these lines, except to modify the commit id
 ! if you have ported upstream changes.
 -/
@@ -30,7 +30,7 @@ these instances will not necessarily agree with the original ones.
 
 It seems without making a parallel version `Module' k A`, for modules over a `k`-algebra `A`,
 that carries these typeclasses, this seems hard to achieve.
-(An alternative would be to always require these typeclasses,
+(An alternative would be to always require these typeclasses, and remove the original `Module`,
 requiring users to write `Module' ℤ A` when `A` is merely a ring.)
 -/

4ed0bcae

bump to nightly-2023-02-21-16

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

1107b979

Changes in mathlib4

mathlib3

mathlib4

1c775cc6

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

@@ -40,7 +40,6 @@ open CategoryTheory
 namespace ModuleCat
 
 variable {k : Type u} [Field k]
-
 variable {A : Type w} [Ring A] [Algebra k A]
 
 /-- Type synonym for considering a module over a `k`-algebra as a `k`-module. -/

1c775cc6

style: homogenise porting notes (#11145)

Homogenises porting notes via capitalisation and addition of whitespace.

It makes the following changes:

converts "--porting note" into "-- Porting note";
converts "porting note" into "Porting note".

8be0b69c

Diff

@@ -61,7 +61,7 @@ example (M N : ModuleCat.{v} A) : Module k (M ⟶ N) := LinearMap.module
 -- Porting note: used to be `by infer_instance` instead of `LinearMap.module`
 
 instance linearOverField : Linear k (ModuleCat.{v} A) where
-  --Porting note: used to be `by infer_instance` instead of `LinearMap.module`
+  -- Porting note: used to be `by infer_instance` instead of `LinearMap.module`
   homModule M N := LinearMap.module
   smul_comp := by
     -- Porting note: this was automatic by `aesop_cat`

1c775cc6

refactor: purge aesop_cat_nonterminal (#7505)

aesop_cat_nonterminal is a non-terminal variant of aesop. It's not supposed to be used in production code since it's even worse than non-terminal simp. However, there were a few occurrences left (presumably from the port), which this PR removes.

The only nontrivial change is that I add mathlib's rfl tactic to the CategoryTheory Aesop rule set.

dc0ee378

Diff

@@ -65,8 +65,10 @@ instance linearOverField : Linear k (ModuleCat.{v} A) where
   homModule M N := LinearMap.module
   smul_comp := by
     -- Porting note: this was automatic by `aesop_cat`
-    aesop_cat_nonterminal
-    rw [LinearMap.smul_apply, LinearMap.smul_apply, LinearMap.map_smul_of_tower]
+    intros
+    ext
+    dsimp only [coe_comp, Function.comp_apply]
+    rw [LinearMap.smul_apply, LinearMap.map_smul_of_tower]
     rfl
 #align Module.linear_over_field ModuleCat.linearOverField

1c775cc6

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

@@ -2,16 +2,13 @@
 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.algebra
-! leanprover-community/mathlib commit 1c775cc661988d96c477aa4ca6f7b5641a2a924b
-! Please do not edit these lines, except to modify the commit id
-! if you have ported upstream changes.
 -/
 import Mathlib.Algebra.Algebra.RestrictScalars
 import Mathlib.CategoryTheory.Linear.Basic
 import Mathlib.Algebra.Category.ModuleCat.Basic
 
+#align_import algebra.category.Module.algebra from "leanprover-community/mathlib"@"1c775cc661988d96c477aa4ca6f7b5641a2a924b"
+
 /-!
 # Additional typeclass for modules over an algebra

1c775cc6

feat: port Algebra.Category.ModuleCat.Algebra (#4801)

d2f2b0e5

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

Changes since the initial port

Changes in mathlib3

Changes in mathlib3port

Changes in mathlib4

Dependencies 8 + 472

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

Changes since the initial port

Changes in mathlib3

Changes in mathlib3port

Changes in mathlib4

Dependencies 8 + 472

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