category_theory.monoidal.discrete | 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

8a0e7128

(last sync)

Changes in mathlib3port

mathlib3

mathlib3port

31ca6f9c

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) 2020 Scott Morrison. All rights reserved.
 Released under Apache 2.0 license as described in the file LICENSE.
 Authors: Scott Morrison
 -/
-import Algebra.Hom.Group
+import Algebra.Group.Hom.Defs
 import CategoryTheory.DiscreteCategory
 import CategoryTheory.Monoidal.NaturalTransformation

31ca6f9c

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) 2020 Scott Morrison. All rights reserved.
 Released under Apache 2.0 license as described in the file LICENSE.
 Authors: Scott Morrison
 -/
-import Mathbin.Algebra.Hom.Group
-import Mathbin.CategoryTheory.DiscreteCategory
-import Mathbin.CategoryTheory.Monoidal.NaturalTransformation
+import Algebra.Hom.Group
+import CategoryTheory.DiscreteCategory
+import CategoryTheory.Monoidal.NaturalTransformation
 
 #align_import category_theory.monoidal.discrete from "leanprover-community/mathlib"@"31ca6f9cf5f90a6206092cd7f84b359dcb6d52e0"

31ca6f9c

bump to nightly-2023-08-17-09

mathlib commit https://github.com/leanprover-community/mathlib/commit/32a7e535287f9c73f2e4d2aef306a39190f0b504

60285dcc

Diff

@@ -58,7 +58,7 @@ def Discrete.monoidalFunctor (F : M →* N) : MonoidalFunctor (Discrete M) (Disc
   obj X := Discrete.mk (F X.as)
   map X Y f := Discrete.eqToHom (F.congr_arg (eq_of_hom f))
   ε := Discrete.eqToHom F.map_one.symm
-  μ X Y := Discrete.eqToHom (F.map_mul X.as Y.as).symm
+  μ X Y := Discrete.eqToHom (F.map_hMul X.as Y.as).symm
 #align category_theory.discrete.monoidal_functor CategoryTheory.Discrete.monoidalFunctor
 #align category_theory.discrete.add_monoidal_functor CategoryTheory.Discrete.addMonoidalFunctor
 -/

31ca6f9c

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) 2020 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.monoidal.discrete
-! leanprover-community/mathlib commit 31ca6f9cf5f90a6206092cd7f84b359dcb6d52e0
-! Please do not edit these lines, except to modify the commit id
-! if you have ported upstream changes.
 -/
 import Mathbin.Algebra.Hom.Group
 import Mathbin.CategoryTheory.DiscreteCategory
 import Mathbin.CategoryTheory.Monoidal.NaturalTransformation
 
+#align_import category_theory.monoidal.discrete from "leanprover-community/mathlib"@"31ca6f9cf5f90a6206092cd7f84b359dcb6d52e0"
+
 /-!
 # Monoids as discrete monoidal categories

31ca6f9c

bump to nightly-2023-04-04-02

mathlib commit https://github.com/leanprover-community/mathlib/commit/3cacc945118c8c637d89950af01da78307f59325

2ee17135

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.monoidal.discrete
-! leanprover-community/mathlib commit 8a0e71287eb4c80e87f72e8c174835f360a6ddd9
+! leanprover-community/mathlib commit 31ca6f9cf5f90a6206092cd7f84b359dcb6d52e0
 ! 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.Monoidal.NaturalTransformation
 /-!
 # Monoids as discrete monoidal categories
 
+> THIS FILE IS SYNCHRONIZED WITH MATHLIB4.
+> Any changes to this file require a corresponding PR to mathlib4.
+
 The discrete category on a monoid is a monoidal category.
 Multiplicative morphisms induced monoidal functors.
 -/

8a0e7128

bump to nightly-2023-03-27-14

mathlib commit https://github.com/leanprover-community/mathlib/commit/ce86f4e05e9a9b8da5e316b22c76ce76440c56a1

b92a7b6a

Diff

@@ -30,6 +30,7 @@ variable (M : Type u) [Monoid M]
 
 namespace CategoryTheory
 
+#print CategoryTheory.Discrete.monoidal /-
 @[to_additive Discrete.addMonoidal, simps tensor_obj_as tensor_unit_as]
 instance Discrete.monoidal : MonoidalCategory (Discrete M)
     where
@@ -40,10 +41,12 @@ instance Discrete.monoidal : MonoidalCategory (Discrete M)
   rightUnitor X := Discrete.eqToIso (mul_one X.as)
   associator X Y Z := Discrete.eqToIso (mul_assoc _ _ _)
 #align category_theory.discrete.monoidal CategoryTheory.Discrete.monoidal
-#align discrete.add_monoidal Discrete.addMonoidal
+#align category_theory.discrete.add_monoidal CategoryTheory.Discrete.addMonoidal
+-/
 
 variable {M} {N : Type u} [Monoid N]
 
+#print CategoryTheory.Discrete.monoidalFunctor /-
 /-- A multiplicative morphism between monoids gives a monoidal functor between the corresponding
 discrete monoidal categories.
 -/
@@ -57,11 +60,13 @@ def Discrete.monoidalFunctor (F : M →* N) : MonoidalFunctor (Discrete M) (Disc
   ε := Discrete.eqToHom F.map_one.symm
   μ X Y := Discrete.eqToHom (F.map_mul X.as Y.as).symm
 #align category_theory.discrete.monoidal_functor CategoryTheory.Discrete.monoidalFunctor
-#align discrete.add_monoidal_functor Discrete.addMonoidalFunctor
+#align category_theory.discrete.add_monoidal_functor CategoryTheory.Discrete.addMonoidalFunctor
+-/
 
 variable {K : Type u} [Monoid K]
 
 /- ./././Mathport/Syntax/Translate/Expr.lean:177:8: unsupported: ambiguous notation -/
+#print CategoryTheory.Discrete.monoidalFunctorComp /-
 /-- The monoidal natural isomorphism corresponding to composing two multiplicative morphisms.
 -/
 @[to_additive Discrete.addMonoidalFunctorComp
@@ -72,7 +77,8 @@ def Discrete.monoidalFunctorComp (F : M →* N) (G : N →* K) :
   Hom := { app := fun X => 𝟙 _ }
   inv := { app := fun X => 𝟙 _ }
 #align category_theory.discrete.monoidal_functor_comp CategoryTheory.Discrete.monoidalFunctorComp
-#align discrete.add_monoidal_functor_comp Discrete.addMonoidalFunctorComp
+#align category_theory.discrete.add_monoidal_functor_comp CategoryTheory.Discrete.addMonoidalFunctorComp
+-/
 
 end CategoryTheory

8a0e7128

bump to nightly-2023-02-21-16

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

1107b979

Changes in mathlib4

mathlib3

mathlib4

8a0e7128

refactor(Algebra/Hom): transpose Hom and file name (#8095)

I believe the file defining a type of morphisms belongs alongside the file defining the structure this morphism works on. So I would like to reorganize the files in the Mathlib.Algebra.Hom folder so that e.g. Mathlib.Algebra.Hom.Ring becomes Mathlib.Algebra.Ring.Hom and Mathlib.Algebra.Hom.NonUnitalAlg becomes Mathlib.Algebra.Algebra.NonUnitalHom.

While fixing the imports I went ahead and sorted them for good luck.

The full list of changes is: renamed: Mathlib/Algebra/Hom/NonUnitalAlg.lean -> Mathlib/Algebra/Algebra/NonUnitalHom.lean renamed: Mathlib/Algebra/Hom/Aut.lean -> Mathlib/Algebra/Group/Aut.lean renamed: Mathlib/Algebra/Hom/Commute.lean -> Mathlib/Algebra/Group/Commute/Hom.lean renamed: Mathlib/Algebra/Hom/Embedding.lean -> Mathlib/Algebra/Group/Embedding.lean renamed: Mathlib/Algebra/Hom/Equiv/Basic.lean -> Mathlib/Algebra/Group/Equiv/Basic.lean renamed: Mathlib/Algebra/Hom/Equiv/TypeTags.lean -> Mathlib/Algebra/Group/Equiv/TypeTags.lean renamed: Mathlib/Algebra/Hom/Equiv/Units/Basic.lean -> Mathlib/Algebra/Group/Units/Equiv.lean renamed: Mathlib/Algebra/Hom/Equiv/Units/GroupWithZero.lean -> Mathlib/Algebra/GroupWithZero/Units/Equiv.lean renamed: Mathlib/Algebra/Hom/Freiman.lean -> Mathlib/Algebra/Group/Freiman.lean renamed: Mathlib/Algebra/Hom/Group/Basic.lean -> Mathlib/Algebra/Group/Hom/Basic.lean renamed: Mathlib/Algebra/Hom/Group/Defs.lean -> Mathlib/Algebra/Group/Hom/Defs.lean renamed: Mathlib/Algebra/Hom/GroupAction.lean -> Mathlib/GroupTheory/GroupAction/Hom.lean renamed: Mathlib/Algebra/Hom/GroupInstances.lean -> Mathlib/Algebra/Group/Hom/Instances.lean renamed: Mathlib/Algebra/Hom/Iterate.lean -> Mathlib/Algebra/GroupPower/IterateHom.lean renamed: Mathlib/Algebra/Hom/Centroid.lean -> Mathlib/Algebra/Ring/CentroidHom.lean renamed: Mathlib/Algebra/Hom/Ring/Basic.lean -> Mathlib/Algebra/Ring/Hom/Basic.lean renamed: Mathlib/Algebra/Hom/Ring/Defs.lean -> Mathlib/Algebra/Ring/Hom/Defs.lean renamed: Mathlib/Algebra/Hom/Units.lean -> Mathlib/Algebra/Group/Units/Hom.lean

Zulip thread: https://leanprover.zulipchat.com/#narrow/stream/287929-mathlib4/topic/Reorganizing.20.60Mathlib.2EAlgebra.2EHom.60

92fe122e

Diff

@@ -3,7 +3,7 @@ Copyright (c) 2020 Scott Morrison. All rights reserved.
 Released under Apache 2.0 license as described in the file LICENSE.
 Authors: Scott Morrison
 -/
-import Mathlib.Algebra.Hom.Group.Defs
+import Mathlib.Algebra.Group.Hom.Defs
 import Mathlib.CategoryTheory.DiscreteCategory
 import Mathlib.CategoryTheory.Monoidal.NaturalTransformation

8a0e7128

refactor: Move the data fields of MonoidalCategory into a Struct class (#7279)

This matches the approach for CategoryStruct, and allows us to use the notation within MonoidalCategory.

It also makes it easier to induce the lawful structure along a faithful functor, as again it means by the time we are providing the proof fields, the notation is already available.

This also eliminates tensorUnit vs tensorUnit', adding a custom pretty-printer to provide the unprimed version with appropriate notation.

f81eaba3

Diff

@@ -28,7 +28,7 @@ namespace CategoryTheory
 @[to_additive (attr := simps tensorObj_as leftUnitor rightUnitor associator) Discrete.addMonoidal]
 instance Discrete.monoidal : MonoidalCategory (Discrete M)
     where
-  tensorUnit' := Discrete.mk 1
+  tensorUnit := Discrete.mk 1
   tensorObj X Y := Discrete.mk (X.as * Y.as)
   whiskerLeft X _ _ f := eqToHom (by dsimp; rw [eq_of_hom f])
   whiskerRight f X := eqToHom (by dsimp; rw [eq_of_hom f])

8a0e7128

feat(CategoryTheory): the pullback of a shift by a monoid morphism (#7270)

80106b75

Diff

@@ -17,7 +17,7 @@ Multiplicative morphisms induced monoidal functors.
 -/
 
 
-universe u
+universe u u'
 
 open CategoryTheory Discrete MonoidalCategory
 
@@ -42,7 +42,7 @@ instance Discrete.monoidal : MonoidalCategory (Discrete M)
 @[to_additive (attr := simp) Discrete.addMonoidal_tensorUnit_as]
 lemma Discrete.monoidal_tensorUnit_as : (𝟙_ (Discrete M)).as = 1 := rfl
 
-variable {M} {N : Type u} [Monoid N]
+variable {M} {N : Type u'} [Monoid N]
 
 /-- A multiplicative morphism between monoids gives a monoidal functor between the corresponding
 discrete monoidal categories.

8a0e7128

chore: only four spaces for subsequent lines (#7286)

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

0c7d6fa5

Diff

@@ -40,8 +40,7 @@ instance Discrete.monoidal : MonoidalCategory (Discrete M)
 #align category_theory.discrete.add_monoidal CategoryTheory.Discrete.addMonoidal
 
 @[to_additive (attr := simp) Discrete.addMonoidal_tensorUnit_as]
-lemma Discrete.monoidal_tensorUnit_as :
-  (𝟙_ (Discrete M)).as = 1 := rfl
+lemma Discrete.monoidal_tensorUnit_as : (𝟙_ (Discrete M)).as = 1 := rfl
 
 variable {M} {N : Type u} [Monoid N]

8a0e7128

refactor: split Algebra.Hom.Group and Algebra.Hom.Ring (#7094)

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

260cb506

Diff

@@ -3,7 +3,7 @@ Copyright (c) 2020 Scott Morrison. All rights reserved.
 Released under Apache 2.0 license as described in the file LICENSE.
 Authors: Scott Morrison
 -/
-import Mathlib.Algebra.Hom.Group
+import Mathlib.Algebra.Hom.Group.Defs
 import Mathlib.CategoryTheory.DiscreteCategory
 import Mathlib.CategoryTheory.Monoidal.NaturalTransformation

8a0e7128

feat(CategoryTheory/Monoidal): define whiskering operators (#6420)

Extracted from #6307. Just put the whiskerings into the constructor.

763106d3

Diff

@@ -30,6 +30,8 @@ instance Discrete.monoidal : MonoidalCategory (Discrete M)
     where
   tensorUnit' := Discrete.mk 1
   tensorObj X Y := Discrete.mk (X.as * Y.as)
+  whiskerLeft X _ _ f := eqToHom (by dsimp; rw [eq_of_hom f])
+  whiskerRight f X := eqToHom (by dsimp; rw [eq_of_hom f])
   tensorHom f g := eqToHom (by dsimp; rw [eq_of_hom f, eq_of_hom g])
   leftUnitor X := Discrete.eqToIso (one_mul X.as)
   rightUnitor X := Discrete.eqToIso (mul_one X.as)

8a0e7128

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) 2020 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.monoidal.discrete
-! leanprover-community/mathlib commit 8a0e71287eb4c80e87f72e8c174835f360a6ddd9
-! Please do not edit these lines, except to modify the commit id
-! if you have ported upstream changes.
 -/
 import Mathlib.Algebra.Hom.Group
 import Mathlib.CategoryTheory.DiscreteCategory
 import Mathlib.CategoryTheory.Monoidal.NaturalTransformation
 
+#align_import category_theory.monoidal.discrete from "leanprover-community/mathlib"@"8a0e71287eb4c80e87f72e8c174835f360a6ddd9"
+
 /-!
 # Monoids as discrete monoidal categories

8a0e7128

feat: port CategoryTheory.Bicategory.CoherenceTactic (#4610)

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

b59f0ddb

Diff

@@ -22,9 +22,7 @@ Multiplicative morphisms induced monoidal functors.
 
 universe u
 
-open CategoryTheory
-
-open CategoryTheory.Discrete
+open CategoryTheory Discrete MonoidalCategory
 
 variable (M : Type u) [Monoid M]

8a0e7128

feat: port CategoryTheory.Shift.Basic (#3039)

Co-authored-by: adamtopaz <github@adamtopaz.com> Co-authored-by: Moritz Firsching <firsching@google.com> Co-authored-by: ChrisHughes24 <chrishughes24@gmail.com> Co-authored-by: Parcly Taxel <reddeloostw@gmail.com>

96323779

Diff

@@ -30,7 +30,7 @@ variable (M : Type u) [Monoid M]
 
 namespace CategoryTheory
 
-@[to_additive (attr := simps tensorObj_as) Discrete.addMonoidal]
+@[to_additive (attr := simps tensorObj_as leftUnitor rightUnitor associator) Discrete.addMonoidal]
 instance Discrete.monoidal : MonoidalCategory (Discrete M)
     where
   tensorUnit' := Discrete.mk 1

8a0e7128

feat: port CategoryTheory.Monoidal.Discrete (#3038)

Co-authored-by: Moritz Firsching <firsching@google.com> Co-authored-by: ChrisHughes24 <chrishughes24@gmail.com> Co-authored-by: Parcly Taxel <reddeloostw@gmail.com> Co-authored-by: Joël Riou <joel.riou@universite-paris-saclay.fr>

32f816ec

`category_theory.monoidal.discrete` ⟷ `Mathlib.CategoryTheory.Monoidal.Discrete`

Changes since the initial port

Changes in mathlib3

Changes in mathlib3port

Changes in mathlib4

Dependencies 43

category_theory.monoidal.discrete ⟷ Mathlib.CategoryTheory.Monoidal.Discrete

Changes since the initial port

Changes in mathlib3

Changes in mathlib3port

Changes in mathlib4

Dependencies 43

`category_theory.monoidal.discrete` ⟷ `Mathlib.CategoryTheory.Monoidal.Discrete`