category_theory.thin | 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

afad8e43

(last sync)

Changes in mathlib3port

mathlib3

mathlib3port

448144f7

bump to nightly-2024-04-06-08

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

e34029c9

Diff

@@ -4,7 +4,7 @@ Released under Apache 2.0 license as described in the file LICENSE.
 Authors: Scott Morrison, Bhavik Mehta
 -/
 import CategoryTheory.Functor.Category
-import CategoryTheory.Isomorphism
+import CategoryTheory.Iso
 
 #align_import category_theory.thin from "leanprover-community/mathlib"@"448144f7ae193a8990cb7473c9e9a01990f64ac7"

448144f7

bump to nightly-2023-09-24-06

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

5655435f

Diff

@@ -3,8 +3,8 @@ Copyright (c) 2019 Scott Morrison, Bhavik Mehta. All rights reserved.
 Released under Apache 2.0 license as described in the file LICENSE.
 Authors: Scott Morrison, Bhavik Mehta
 -/
-import Mathbin.CategoryTheory.Functor.Category
-import Mathbin.CategoryTheory.Isomorphism
+import CategoryTheory.Functor.Category
+import CategoryTheory.Isomorphism
 
 #align_import category_theory.thin from "leanprover-community/mathlib"@"448144f7ae193a8990cb7473c9e9a01990f64ac7"

448144f7

bump to nightly-2023-07-20-09

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

9c56d0dd

Diff

@@ -2,15 +2,12 @@
 Copyright (c) 2019 Scott Morrison, Bhavik Mehta. All rights reserved.
 Released under Apache 2.0 license as described in the file LICENSE.
 Authors: Scott Morrison, Bhavik Mehta
-
-! This file was ported from Lean 3 source module category_theory.thin
-! leanprover-community/mathlib commit 448144f7ae193a8990cb7473c9e9a01990f64ac7
-! Please do not edit these lines, except to modify the commit id
-! if you have ported upstream changes.
 -/
 import Mathbin.CategoryTheory.Functor.Category
 import Mathbin.CategoryTheory.Isomorphism
 
+#align_import category_theory.thin from "leanprover-community/mathlib"@"448144f7ae193a8990cb7473c9e9a01990f64ac7"
+
 /-!
 # Thin categories

448144f7

bump to nightly-2023-05-28-04

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

6797a637

Diff

@@ -76,10 +76,7 @@ def iso_of_both_ways {X Y : C} (f : X ⟶ Y) (g : Y ⟶ X) : X ≅ Y
 
 #print CategoryTheory.subsingleton_iso /-
 instance subsingleton_iso {X Y : C} : Subsingleton (X ≅ Y) :=
-  ⟨by
-    intro i₁ i₂
-    ext1
-    apply Subsingleton.elim⟩
+  ⟨by intro i₁ i₂; ext1; apply Subsingleton.elim⟩
 #align category_theory.subsingleton_iso CategoryTheory.subsingleton_iso
 -/

448144f7

bump to nightly-2023-02-21-16

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

1107b979

Changes in mathlib4

mathlib3

mathlib4

afad8e43

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

@@ -43,7 +43,6 @@ end
 -- In particular this allows `C` to be a preorder, with the category instance inherited from the
 -- preorder structure.
 variable [Category.{v₁} C] {D : Type u₂} [Category.{v₂} D]
-
 variable [Quiver.IsThin C]
 
 /-- If `C` is a thin category, then `D ⥤ C` is a thin category. -/

afad8e43

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

@@ -2,15 +2,12 @@
 Copyright (c) 2019 Scott Morrison, Bhavik Mehta. All rights reserved.
 Released under Apache 2.0 license as described in the file LICENSE.
 Authors: Scott Morrison, Bhavik Mehta
-
-! This file was ported from Lean 3 source module category_theory.thin
-! leanprover-community/mathlib commit afad8e438d03f9d89da2914aa06cb4964ba87a18
-! Please do not edit these lines, except to modify the commit id
-! if you have ported upstream changes.
 -/
 import Mathlib.CategoryTheory.Functor.Category
 import Mathlib.CategoryTheory.Iso
 
+#align_import category_theory.thin from "leanprover-community/mathlib"@"afad8e438d03f9d89da2914aa06cb4964ba87a18"
+
 /-!
 # Thin categories
 A thin category (also known as a sparse category) is a category with at most one morphism between

afad8e43

chore: add source headers to ported theory files (#1094)

The script used to do this is included. The yaml file was obtained from https://raw.githubusercontent.com/wiki/leanprover-community/mathlib/mathlib4-port-status.md

f168625e

Diff

@@ -2,6 +2,11 @@
 Copyright (c) 2019 Scott Morrison, Bhavik Mehta. All rights reserved.
 Released under Apache 2.0 license as described in the file LICENSE.
 Authors: Scott Morrison, Bhavik Mehta
+
+! This file was ported from Lean 3 source module category_theory.thin
+! leanprover-community/mathlib commit afad8e438d03f9d89da2914aa06cb4964ba87a18
+! Please do not edit these lines, except to modify the commit id
+! if you have ported upstream changes.
 -/
 import Mathlib.CategoryTheory.Functor.Category
 import Mathlib.CategoryTheory.Iso

`category_theory.thin` ⟷ `Mathlib.CategoryTheory.Thin`

Changes since the initial port

Changes in mathlib3

Changes in mathlib3port

Changes in mathlib4

Dependencies 4

category_theory.thin ⟷ Mathlib.CategoryTheory.Thin

Changes since the initial port

Changes in mathlib3

Changes in mathlib3port

Changes in mathlib4

Dependencies 4

`category_theory.thin` ⟷ `Mathlib.CategoryTheory.Thin`