category_theory.monoidal.skeleton | 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

70fd9563

(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

@@ -3,7 +3,7 @@ Copyright (c) 2021 Bhavik Mehta. All rights reserved.
 Released under Apache 2.0 license as described in the file LICENSE.
 Authors: Bhavik Mehta
 -/
-import CategoryTheory.Monoidal.Braided
+import CategoryTheory.Monoidal.Braided.Basic
 import CategoryTheory.Monoidal.Transport
 import CategoryTheory.Skeletal

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) 2021 Bhavik Mehta. All rights reserved.
 Released under Apache 2.0 license as described in the file LICENSE.
 Authors: Bhavik Mehta
 -/
-import Mathbin.CategoryTheory.Monoidal.Braided
-import Mathbin.CategoryTheory.Monoidal.Transport
-import Mathbin.CategoryTheory.Skeletal
+import CategoryTheory.Monoidal.Braided
+import CategoryTheory.Monoidal.Transport
+import CategoryTheory.Skeletal
 
 #align_import category_theory.monoidal.skeleton 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) 2021 Bhavik Mehta. All rights reserved.
 Released under Apache 2.0 license as described in the file LICENSE.
 Authors: Bhavik Mehta
-
-! This file was ported from Lean 3 source module category_theory.monoidal.skeleton
-! 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.CategoryTheory.Monoidal.Braided
 import Mathbin.CategoryTheory.Monoidal.Transport
 import Mathbin.CategoryTheory.Skeletal
 
+#align_import category_theory.monoidal.skeleton from "leanprover-community/mathlib"@"6b31d1eebd64eab86d5bd9936bfaada6ca8b5842"
+
 /-!
 # The monoid on the skeleton of a monoidal category

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: Bhavik Mehta
 
 ! This file was ported from Lean 3 source module category_theory.monoidal.skeleton
-! leanprover-community/mathlib commit 70fd9563a21e7b963887c9360bd29b2393e6225a
+! 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.CategoryTheory.Skeletal
 /-!
 # The monoid on the skeleton of a monoidal category
 
+> THIS FILE IS SYNCHRONIZED WITH MATHLIB4.
+> Any changes to this file require a corresponding PR to mathlib4.
+
 The skeleton of a monoidal category is a monoid.
 -/

70fd9563

bump to nightly-2023-06-08-11

mathlib commit https://github.com/leanprover-community/mathlib/commit/31c24aa72e7b3e5ed97a8412470e904f82b81004

7d7c0aca

Diff

@@ -28,6 +28,7 @@ universe v u
 variable {C : Type u} [Category.{v} C] [MonoidalCategory C]
 
 /- ./././Mathport/Syntax/Translate/Expr.lean:177:8: unsupported: ambiguous notation -/
+#print CategoryTheory.monoidOfSkeletalMonoidal /-
 /-- If `C` is monoidal and skeletal, it is a monoid.
 See note [reducible non-instances]. -/
 @[reducible]
@@ -39,11 +40,14 @@ def monoidOfSkeletalMonoidal (hC : Skeletal C) : Monoid C
   mul_one X := hC ⟨ρ_ X⟩
   mul_assoc X Y Z := hC ⟨α_ X Y Z⟩
 #align category_theory.monoid_of_skeletal_monoidal CategoryTheory.monoidOfSkeletalMonoidal
+-/
 
+#print CategoryTheory.commMonoidOfSkeletalBraided /-
 /-- If `C` is braided and skeletal, it is a commutative monoid. -/
 def commMonoidOfSkeletalBraided [BraidedCategory C] (hC : Skeletal C) : CommMonoid C :=
   { monoidOfSkeletalMonoidal hC with mul_comm := fun X Y => hC ⟨β_ X Y⟩ }
 #align category_theory.comm_monoid_of_skeletal_braided CategoryTheory.commMonoidOfSkeletalBraided
+-/
 
 /-- The skeleton of a monoidal category has a monoidal structure itself, induced by the equivalence.
 -/

70fd9563

bump to nightly-2023-02-21-16

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

1107b979

Changes in mathlib4

mathlib3

mathlib4

70fd9563

feat: the opposite of a braided category is braided (#10095)

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

6dc895db

Diff

@@ -3,7 +3,7 @@ Copyright (c) 2021 Bhavik Mehta. All rights reserved.
 Released under Apache 2.0 license as described in the file LICENSE.
 Authors: Bhavik Mehta
 -/
-import Mathlib.CategoryTheory.Monoidal.Braided
+import Mathlib.CategoryTheory.Monoidal.Braided.Basic
 import Mathlib.CategoryTheory.Monoidal.Transport
 import Mathlib.CategoryTheory.Skeletal

70fd9563

chore: remove some double spaces (#7983)

Co-authored-by: Moritz Firsching <firsching@google.com>

24cd315a

Diff

@@ -67,7 +67,7 @@ noncomputable instance instBraidedCategory [BraidedCategory C] : BraidedCategory
   braidedCategoryOfFullyFaithful (Monoidal.fromTransported (skeletonEquivalence C).symm)
 
 /--
-The skeleton of a braided monoidal category can be viewed as a commutative  monoid, where the
+The skeleton of a braided monoidal category can be viewed as a commutative monoid, where the
 multiplication is given by the tensor product, and satisfies the monoid axioms since it is a
 skeleton.
 -/

70fd9563

feat(CategoryTheory/Monoidal/Skeleton): CommMonoid instance (#7130)

This also names the instances so that the docstring can refer to them.

6ad7d2f3

Diff

@@ -13,6 +13,12 @@ import Mathlib.CategoryTheory.Skeletal
 # The monoid on the skeleton of a monoidal category
 
 The skeleton of a monoidal category is a monoid.
+
+## Main results
+
+* `Skeleton.instMonoid`, for monoidal categories.
+* `Skeleton.instCommMonoid`, for braided monoidal categories.
+
 -/
 
 
@@ -40,18 +46,34 @@ def commMonoidOfSkeletalBraided [BraidedCategory C] (hC : Skeletal C) : CommMono
   { monoidOfSkeletalMonoidal hC with mul_comm := fun X Y => hC ⟨β_ X Y⟩ }
 #align category_theory.comm_monoid_of_skeletal_braided CategoryTheory.commMonoidOfSkeletalBraided
 
+namespace Skeleton
+
 /-- The skeleton of a monoidal category has a monoidal structure itself, induced by the equivalence.
 -/
-noncomputable instance : MonoidalCategory (Skeleton C) :=
+noncomputable instance instMonoidalCategory : MonoidalCategory (Skeleton C) :=
   Monoidal.transport (skeletonEquivalence C).symm
 
 /--
 The skeleton of a monoidal category can be viewed as a monoid, where the multiplication is given by
 the tensor product, and satisfies the monoid axioms since it is a skeleton.
 -/
-noncomputable instance : Monoid (Skeleton C) :=
+noncomputable instance instMonoid : Monoid (Skeleton C) :=
   monoidOfSkeletalMonoidal (skeletonIsSkeleton _).skel
 
--- TODO: Transfer the braided structure to the skeleton of C along the equivalence, and show that
--- the skeleton is a commutative monoid.
+/-- The skeleton of a braided monoidal category has a braided monoidal structure itself, induced by
+the equivalence. -/
+noncomputable instance instBraidedCategory [BraidedCategory C] : BraidedCategory (Skeleton C) :=
+  letI := Monoidal.instIsEquivalence_fromTransported (skeletonEquivalence C).symm
+  braidedCategoryOfFullyFaithful (Monoidal.fromTransported (skeletonEquivalence C).symm)
+
+/--
+The skeleton of a braided monoidal category can be viewed as a commutative  monoid, where the
+multiplication is given by the tensor product, and satisfies the monoid axioms since it is a
+skeleton.
+-/
+noncomputable instance instCommMonoid [BraidedCategory C] : CommMonoid (Skeleton C) :=
+  commMonoidOfSkeletalBraided (skeletonIsSkeleton _).skel
+
+end Skeleton
+
 end CategoryTheory

70fd9563

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) 2021 Bhavik Mehta. All rights reserved.
 Released under Apache 2.0 license as described in the file LICENSE.
 Authors: Bhavik Mehta
-
-! This file was ported from Lean 3 source module category_theory.monoidal.skeleton
-! leanprover-community/mathlib commit 70fd9563a21e7b963887c9360bd29b2393e6225a
-! Please do not edit these lines, except to modify the commit id
-! if you have ported upstream changes.
 -/
 import Mathlib.CategoryTheory.Monoidal.Braided
 import Mathlib.CategoryTheory.Monoidal.Transport
 import Mathlib.CategoryTheory.Skeletal
 
+#align_import category_theory.monoidal.skeleton from "leanprover-community/mathlib"@"70fd9563a21e7b963887c9360bd29b2393e6225a"
+
 /-!
 # The monoid on the skeleton of a monoidal category

70fd9563

feat: port CategoryTheory.Monoidal.Skeleton (#4844)

a3f5bad3

`category_theory.monoidal.skeleton` ⟷ `Mathlib.CategoryTheory.Monoidal.Skeleton`

Changes since the initial port

Changes in mathlib3

Changes in mathlib3port

Changes in mathlib4

Dependencies 93

category_theory.monoidal.skeleton ⟷ Mathlib.CategoryTheory.Monoidal.Skeleton

Changes since the initial port

Changes in mathlib3

Changes in mathlib3port

Changes in mathlib4

Dependencies 93

`category_theory.monoidal.skeleton` ⟷ `Mathlib.CategoryTheory.Monoidal.Skeleton`