category_theory.preadditive.single_obj

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

829895f1

(last sync)

Changes in mathlib3port

mathlib3

mathlib3port

8ef6f08f

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) 2021 Scott Morrison. All rights reserved.
 Released under Apache 2.0 license as described in the file LICENSE.
 Authors: Scott Morrison
 -/
-import Mathbin.CategoryTheory.Preadditive.Basic
-import Mathbin.CategoryTheory.SingleObj
+import CategoryTheory.Preadditive.Basic
+import CategoryTheory.SingleObj
 
 #align_import category_theory.preadditive.single_obj from "leanprover-community/mathlib"@"8ef6f08ff8c781c5c07a8b12843710e1a0d8a688"

8ef6f08f

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) 2021 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 category_theory.preadditive.single_obj
-! leanprover-community/mathlib commit 8ef6f08ff8c781c5c07a8b12843710e1a0d8a688
-! Please do not edit these lines, except to modify the commit id
-! if you have ported upstream changes.
 -/
 import Mathbin.CategoryTheory.Preadditive.Basic
 import Mathbin.CategoryTheory.SingleObj
 
+#align_import category_theory.preadditive.single_obj from "leanprover-community/mathlib"@"8ef6f08ff8c781c5c07a8b12843710e1a0d8a688"
+
 /-!
 # `single_obj α` is preadditive when `α` is a ring.

8ef6f08f

bump to nightly-2023-03-24-02

mathlib commit https://github.com/leanprover-community/mathlib/commit/b19481deb571022990f1baa9cbf9172e6757a479

9cc39ff3

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 category_theory.preadditive.single_obj
-! leanprover-community/mathlib commit 829895f162a1f29d0133f4b3538f4cd1fb5bffd3
+! leanprover-community/mathlib commit 8ef6f08ff8c781c5c07a8b12843710e1a0d8a688
 ! Please do not edit these lines, except to modify the commit id
 ! if you have ported upstream changes.
 -/
@@ -14,6 +14,9 @@ import Mathbin.CategoryTheory.SingleObj
 /-!
 # `single_obj α` is preadditive when `α` is a ring.
 
+> THIS FILE IS SYNCHRONIZED WITH MATHLIB4.
+> Any changes to this file require a corresponding PR to mathlib4.
+
 -/

829895f1

bump to nightly-2023-03-09-08

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

a3ca2eeb

Diff

@@ -23,8 +23,8 @@ variable {α : Type _} [Ring α]
 
 instance : Preadditive (SingleObj α)
     where
-  add_comp' _ _ _ f f' g := mul_add g f f'
-  comp_add' _ _ _ f g g' := add_mul g g' f
+  add_comp _ _ _ f f' g := mul_add g f f'
+  comp_add _ _ _ f g g' := add_mul g g' f
 
 -- TODO define `PreAddCat` (with additive functors as morphisms), and `Ring ⥤ PreAddCat`.
 end CategoryTheory

829895f1

bump to nightly-2023-02-21-16

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

1107b979

Changes in mathlib4

mathlib3

mathlib4

829895f1

chore: banish Type _ and Sort _ (#6499)

We remove all possible occurences of Type _ and Sort _ in favor of Type* and Sort*.

This has nice performance benefits.

32de3f67

Diff

@@ -16,7 +16,7 @@ import Mathlib.CategoryTheory.SingleObj
 
 namespace CategoryTheory
 
-variable {α : Type _} [Ring α]
+variable {α : Type*} [Ring α]
 
 instance : Preadditive (SingleObj α) where
   add_comp _ _ _ f f' g := mul_add g f f'

829895f1

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) 2021 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 category_theory.preadditive.single_obj
-! leanprover-community/mathlib commit 829895f162a1f29d0133f4b3538f4cd1fb5bffd3
-! Please do not edit these lines, except to modify the commit id
-! if you have ported upstream changes.
 -/
 import Mathlib.CategoryTheory.Preadditive.Basic
 import Mathlib.CategoryTheory.SingleObj
 
+#align_import category_theory.preadditive.single_obj from "leanprover-community/mathlib"@"829895f162a1f29d0133f4b3538f4cd1fb5bffd3"
+
 /-!
 # `SingleObj α` is preadditive when `α` is a ring.

829895f1

feat: port CategoryTheory.Preadditive.SingleObj (#3030)

Co-authored-by: Parcly Taxel <reddeloostw@gmail.com>

3caa2949

`category_theory.preadditive.single_obj` ⟷ `Mathlib.CategoryTheory.Preadditive.SingleObj`

Changes since the initial port

Changes in mathlib3

Changes in mathlib3port

Changes in mathlib4

Dependencies 3 + 298

category_theory.preadditive.single_obj ⟷ Mathlib.CategoryTheory.Preadditive.SingleObj

Changes since the initial port

Changes in mathlib3

Changes in mathlib3port

Changes in mathlib4

Dependencies 3 + 298

`category_theory.preadditive.single_obj` ⟷ `Mathlib.CategoryTheory.Preadditive.SingleObj`