category_theory.groupoid.vertex_group | 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

47b51515

(last sync)

Changes in mathlib3port

mathlib3

mathlib3port

97eab485

bump to nightly-2024-04-06-08

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

e34029c9

Diff

@@ -6,8 +6,8 @@ Authors: Rémi Bottinelli
 import CategoryTheory.Groupoid
 import CategoryTheory.PathCategory
 import Algebra.Group.Defs
-import Algebra.Hom.Group
-import Algebra.Hom.Equiv.Basic
+import Algebra.Group.Hom.Defs
+import Algebra.Group.Equiv.Basic
 import Combinatorics.Quiver.Path
 
 #align_import category_theory.groupoid.vertex_group from "leanprover-community/mathlib"@"97eab48559068f3d6313da387714ef25768fb730"

97eab485

bump to nightly-2023-09-24-06

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

5655435f

Diff

@@ -3,12 +3,12 @@ Copyright (c) 2022 Rémi Bottinelli. All rights reserved.
 Released under Apache 2.0 license as described in the file LICENSE.
 Authors: Rémi Bottinelli
 -/
-import Mathbin.CategoryTheory.Groupoid
-import Mathbin.CategoryTheory.PathCategory
-import Mathbin.Algebra.Group.Defs
-import Mathbin.Algebra.Hom.Group
-import Mathbin.Algebra.Hom.Equiv.Basic
-import Mathbin.Combinatorics.Quiver.Path
+import CategoryTheory.Groupoid
+import CategoryTheory.PathCategory
+import Algebra.Group.Defs
+import Algebra.Hom.Group
+import Algebra.Hom.Equiv.Basic
+import Combinatorics.Quiver.Path
 
 #align_import category_theory.groupoid.vertex_group from "leanprover-community/mathlib"@"97eab48559068f3d6313da387714ef25768fb730"

97eab485

bump to nightly-2023-08-17-09

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

60285dcc

Diff

@@ -52,7 +52,7 @@ instance vertexGroup (c : C) : Group (c ⟶ c)
   one_mul := Category.id_comp
   mul_one := Category.comp_id
   inv := Groupoid.inv
-  mul_left_inv := inv_comp
+  hMul_left_inv := inv_comp
 #align category_theory.groupoid.vertex_group CategoryTheory.Groupoid.vertexGroup
 -/

97eab485

bump to nightly-2023-07-20-09

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

9c56d0dd

Diff

@@ -2,11 +2,6 @@
 Copyright (c) 2022 Rémi Bottinelli. All rights reserved.
 Released under Apache 2.0 license as described in the file LICENSE.
 Authors: Rémi Bottinelli
-
-! This file was ported from Lean 3 source module category_theory.groupoid.vertex_group
-! leanprover-community/mathlib commit 97eab48559068f3d6313da387714ef25768fb730
-! Please do not edit these lines, except to modify the commit id
-! if you have ported upstream changes.
 -/
 import Mathbin.CategoryTheory.Groupoid
 import Mathbin.CategoryTheory.PathCategory
@@ -15,6 +10,8 @@ import Mathbin.Algebra.Hom.Group
 import Mathbin.Algebra.Hom.Equiv.Basic
 import Mathbin.Combinatorics.Quiver.Path
 
+#align_import category_theory.groupoid.vertex_group from "leanprover-community/mathlib"@"97eab48559068f3d6313da387714ef25768fb730"
+
 /-!
 # Vertex group

97eab485

bump to nightly-2023-06-13-21

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

829520ac

Diff

@@ -59,11 +59,14 @@ instance vertexGroup (c : C) : Group (c ⟶ c)
 #align category_theory.groupoid.vertex_group CategoryTheory.Groupoid.vertexGroup
 -/
 
+#print CategoryTheory.Groupoid.vertexGroup.inv_eq_inv /-
 /-- The inverse in the group is equal to the inverse given by `category_theory.inv`. -/
 theorem vertexGroup.inv_eq_inv (c : C) (γ : c ⟶ c) : γ⁻¹ = CategoryTheory.inv γ :=
   Groupoid.inv_eq_inv γ
 #align category_theory.groupoid.vertex_group.inv_eq_inv CategoryTheory.Groupoid.vertexGroup.inv_eq_inv
+-/
 
+#print CategoryTheory.Groupoid.vertexGroupIsomOfMap /-
 /-- An arrow in the groupoid defines, by conjugation, an isomorphism of groups between
 its endpoints.
 -/
@@ -81,13 +84,17 @@ def vertexGroupIsomOfMap {c d : C} (f : c ⟶ d) : (c ⟶ c) ≃* (d ⟶ d)
   map_mul' γ₁ γ₂ := by
     simp only [vertex_group_mul, inv_eq_inv, category.assoc, is_iso.hom_inv_id_assoc]
 #align category_theory.groupoid.vertex_group_isom_of_map CategoryTheory.Groupoid.vertexGroupIsomOfMap
+-/
 
+#print CategoryTheory.Groupoid.vertexGroupIsomOfPath /-
 /-- A path in the groupoid defines an isomorphism between its endpoints.
 -/
 def vertexGroupIsomOfPath {c d : C} (p : Quiver.Path c d) : (c ⟶ c) ≃* (d ⟶ d) :=
   vertexGroupIsomOfMap (composePath p)
 #align category_theory.groupoid.vertex_group_isom_of_path CategoryTheory.Groupoid.vertexGroupIsomOfPath
+-/
 
+#print CategoryTheory.Groupoid.CategoryTheory.Functor.mapVertexGroup /-
 /-- A functor defines a morphism of vertex group. -/
 @[simps]
 def CategoryTheory.Groupoid.CategoryTheory.Functor.mapVertexGroup {D : Type v} [Groupoid D]
@@ -97,6 +104,7 @@ def CategoryTheory.Groupoid.CategoryTheory.Functor.mapVertexGroup {D : Type v} [
   map_one' := φ.map_id c
   map_mul' := φ.map_comp
 #align category_theory.functor.map_vertex_group CategoryTheory.Groupoid.CategoryTheory.Functor.mapVertexGroup
+-/
 
 end Groupoid

97eab485

bump to nightly-2023-05-28-06

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

ba5d8b97

Diff

@@ -59,23 +59,11 @@ instance vertexGroup (c : C) : Group (c ⟶ c)
 #align category_theory.groupoid.vertex_group CategoryTheory.Groupoid.vertexGroup
 -/
 
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-Case conversion may be inaccurate. Consider using '#align category_theory.groupoid.vertex_group.inv_eq_inv CategoryTheory.Groupoid.vertexGroup.inv_eq_invₓ'. -/
 /-- The inverse in the group is equal to the inverse given by `category_theory.inv`. -/
 theorem vertexGroup.inv_eq_inv (c : C) (γ : c ⟶ c) : γ⁻¹ = CategoryTheory.inv γ :=
   Groupoid.inv_eq_inv γ
 #align category_theory.groupoid.vertex_group.inv_eq_inv CategoryTheory.Groupoid.vertexGroup.inv_eq_inv
 
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-Case conversion may be inaccurate. Consider using '#align category_theory.groupoid.vertex_group_isom_of_map CategoryTheory.Groupoid.vertexGroupIsomOfMapₓ'. -/
 /-- An arrow in the groupoid defines, by conjugation, an isomorphism of groups between
 its endpoints.
 -/
@@ -94,21 +82,12 @@ def vertexGroupIsomOfMap {c d : C} (f : c ⟶ d) : (c ⟶ c) ≃* (d ⟶ d)
     simp only [vertex_group_mul, inv_eq_inv, category.assoc, is_iso.hom_inv_id_assoc]
 #align category_theory.groupoid.vertex_group_isom_of_map CategoryTheory.Groupoid.vertexGroupIsomOfMap
 
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-Case conversion may be inaccurate. Consider using '#align category_theory.groupoid.vertex_group_isom_of_path CategoryTheory.Groupoid.vertexGroupIsomOfPathₓ'. -/
 /-- A path in the groupoid defines an isomorphism between its endpoints.
 -/
 def vertexGroupIsomOfPath {c d : C} (p : Quiver.Path c d) : (c ⟶ c) ≃* (d ⟶ d) :=
   vertexGroupIsomOfMap (composePath p)
 #align category_theory.groupoid.vertex_group_isom_of_path CategoryTheory.Groupoid.vertexGroupIsomOfPath
 
-/- warning: category_theory.functor.map_vertex_group -> CategoryTheory.Groupoid.CategoryTheory.Functor.mapVertexGroup is a dubious translation:
-<too large>
-Case conversion may be inaccurate. Consider using '#align category_theory.functor.map_vertex_group CategoryTheory.Groupoid.CategoryTheory.Functor.mapVertexGroupₓ'. -/
 /-- A functor defines a morphism of vertex group. -/
 @[simps]
 def CategoryTheory.Groupoid.CategoryTheory.Functor.mapVertexGroup {D : Type v} [Groupoid D]

97eab485

bump to nightly-2023-05-28-03

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

6c6011cf

Diff

@@ -107,10 +107,7 @@ def vertexGroupIsomOfPath {c d : C} (p : Quiver.Path c d) : (c ⟶ c) ≃* (d 
 #align category_theory.groupoid.vertex_group_isom_of_path CategoryTheory.Groupoid.vertexGroupIsomOfPath
 
 /- warning: category_theory.functor.map_vertex_group -> CategoryTheory.Groupoid.CategoryTheory.Functor.mapVertexGroup is a dubious translation:
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+<too large>
 Case conversion may be inaccurate. Consider using '#align category_theory.functor.map_vertex_group CategoryTheory.Groupoid.CategoryTheory.Functor.mapVertexGroupₓ'. -/
 /-- A functor defines a morphism of vertex group. -/
 @[simps]

97eab485

bump to nightly-2023-03-25-02

mathlib commit https://github.com/leanprover-community/mathlib/commit/d11893b411025250c8e61ff2f12ccbd7ee35ab15

9ce440f0

Diff

@@ -4,7 +4,7 @@ Released under Apache 2.0 license as described in the file LICENSE.
 Authors: Rémi Bottinelli
 
 ! This file was ported from Lean 3 source module category_theory.groupoid.vertex_group
-! leanprover-community/mathlib commit 47b51515e69f59bca5cf34ef456e6000fe205a69
+! leanprover-community/mathlib commit 97eab48559068f3d6313da387714ef25768fb730
 ! Please do not edit these lines, except to modify the commit id
 ! if you have ported upstream changes.
 -/
@@ -18,6 +18,9 @@ import Mathbin.Combinatorics.Quiver.Path
 /-!
 # Vertex group
 
+> THIS FILE IS SYNCHRONIZED WITH MATHLIB4.
+> Any changes to this file require a corresponding PR to mathlib4.
+
 This file defines the vertex group (*aka* isotropy group) of a groupoid at a vertex.
 
 ## Implementation notes

47b51515

bump to nightly-2023-03-23-20

mathlib commit https://github.com/leanprover-community/mathlib/commit/57e09a1296bfb4330ddf6624f1028ba186117d82

53b827ba

Diff

@@ -41,6 +41,7 @@ universe u v
 
 variable {C : Type u} [Groupoid C]
 
+#print CategoryTheory.Groupoid.vertexGroup /-
 /-- The vertex group at `c`. -/
 @[simps]
 instance vertexGroup (c : C) : Group (c ⟶ c)
@@ -53,12 +54,25 @@ instance vertexGroup (c : C) : Group (c ⟶ c)
   inv := Groupoid.inv
   mul_left_inv := inv_comp
 #align category_theory.groupoid.vertex_group CategoryTheory.Groupoid.vertexGroup
+-/
 
+/- warning: category_theory.groupoid.vertex_group.inv_eq_inv -> CategoryTheory.Groupoid.vertexGroup.inv_eq_inv is a dubious translation:
+lean 3 declaration is
+  forall {C : Type.{u1}} [_inst_1 : CategoryTheory.Groupoid.{u2, u1} C] (c : C) (γ : Quiver.Hom.{succ u2, u1} C (CategoryTheory.CategoryStruct.toQuiver.{u2, u1} C (CategoryTheory.Category.toCategoryStruct.{u2, u1} C (CategoryTheory.Groupoid.toCategory.{u2, u1} C _inst_1))) c c), Eq.{succ u2} (Quiver.Hom.{succ u2, u1} C (CategoryTheory.CategoryStruct.toQuiver.{u2, u1} C (CategoryTheory.Category.toCategoryStruct.{u2, u1} C (CategoryTheory.Groupoid.toCategory.{u2, u1} C _inst_1))) c c) (Inv.inv.{u2} (Quiver.Hom.{succ u2, u1} C (CategoryTheory.CategoryStruct.toQuiver.{u2, u1} C (CategoryTheory.Category.toCategoryStruct.{u2, u1} C (CategoryTheory.Groupoid.toCategory.{u2, u1} C _inst_1))) c c) (DivInvMonoid.toHasInv.{u2} (Quiver.Hom.{succ u2, u1} C (CategoryTheory.CategoryStruct.toQuiver.{u2, u1} C (CategoryTheory.Category.toCategoryStruct.{u2, u1} C (CategoryTheory.Groupoid.toCategory.{u2, u1} C _inst_1))) c c) (Group.toDivInvMonoid.{u2} (Quiver.Hom.{succ u2, u1} C (CategoryTheory.CategoryStruct.toQuiver.{u2, u1} C (CategoryTheory.Category.toCategoryStruct.{u2, u1} C (CategoryTheory.Groupoid.toCategory.{u2, u1} C _inst_1))) c c) (CategoryTheory.Groupoid.vertexGroup.{u1, u2} C _inst_1 c))) γ) (CategoryTheory.inv.{u2, u1} C (CategoryTheory.Groupoid.toCategory.{u2, u1} C _inst_1) c c γ (CategoryTheory.IsIso.of_groupoid.{u2, u1} C _inst_1 c c γ))
+but is expected to have type
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+Case conversion may be inaccurate. Consider using '#align category_theory.groupoid.vertex_group.inv_eq_inv CategoryTheory.Groupoid.vertexGroup.inv_eq_invₓ'. -/
 /-- The inverse in the group is equal to the inverse given by `category_theory.inv`. -/
 theorem vertexGroup.inv_eq_inv (c : C) (γ : c ⟶ c) : γ⁻¹ = CategoryTheory.inv γ :=
   Groupoid.inv_eq_inv γ
 #align category_theory.groupoid.vertex_group.inv_eq_inv CategoryTheory.Groupoid.vertexGroup.inv_eq_inv
 
+/- warning: category_theory.groupoid.vertex_group_isom_of_map -> CategoryTheory.Groupoid.vertexGroupIsomOfMap is a dubious translation:
+lean 3 declaration is
+  forall {C : Type.{u1}} [_inst_1 : CategoryTheory.Groupoid.{u2, u1} C] {c : C} {d : C}, (Quiver.Hom.{succ u2, u1} C (CategoryTheory.CategoryStruct.toQuiver.{u2, u1} C (CategoryTheory.Category.toCategoryStruct.{u2, u1} C (CategoryTheory.Groupoid.toCategory.{u2, u1} C _inst_1))) c d) -> (MulEquiv.{u2, u2} (Quiver.Hom.{succ u2, u1} C (CategoryTheory.CategoryStruct.toQuiver.{u2, u1} C (CategoryTheory.Category.toCategoryStruct.{u2, u1} C (CategoryTheory.Groupoid.toCategory.{u2, u1} C _inst_1))) c c) (Quiver.Hom.{succ u2, u1} C (CategoryTheory.CategoryStruct.toQuiver.{u2, u1} C (CategoryTheory.Category.toCategoryStruct.{u2, u1} C (CategoryTheory.Groupoid.toCategory.{u2, u1} C _inst_1))) d d) (MulOneClass.toHasMul.{u2} (Quiver.Hom.{succ u2, u1} C (CategoryTheory.CategoryStruct.toQuiver.{u2, u1} C (CategoryTheory.Category.toCategoryStruct.{u2, u1} C (CategoryTheory.Groupoid.toCategory.{u2, u1} C _inst_1))) c c) (Monoid.toMulOneClass.{u2} (Quiver.Hom.{succ u2, u1} C (CategoryTheory.CategoryStruct.toQuiver.{u2, u1} C (CategoryTheory.Category.toCategoryStruct.{u2, u1} C (CategoryTheory.Groupoid.toCategory.{u2, u1} C _inst_1))) c c) (DivInvMonoid.toMonoid.{u2} (Quiver.Hom.{succ u2, u1} C (CategoryTheory.CategoryStruct.toQuiver.{u2, u1} C (CategoryTheory.Category.toCategoryStruct.{u2, u1} C (CategoryTheory.Groupoid.toCategory.{u2, u1} C _inst_1))) c c) (Group.toDivInvMonoid.{u2} (Quiver.Hom.{succ u2, u1} C (CategoryTheory.CategoryStruct.toQuiver.{u2, u1} C (CategoryTheory.Category.toCategoryStruct.{u2, u1} C (CategoryTheory.Groupoid.toCategory.{u2, u1} C _inst_1))) c c) (CategoryTheory.Groupoid.vertexGroup.{u1, u2} C _inst_1 c))))) (MulOneClass.toHasMul.{u2} (Quiver.Hom.{succ u2, u1} C (CategoryTheory.CategoryStruct.toQuiver.{u2, u1} C (CategoryTheory.Category.toCategoryStruct.{u2, u1} C (CategoryTheory.Groupoid.toCategory.{u2, u1} C _inst_1))) d d) (Monoid.toMulOneClass.{u2} (Quiver.Hom.{succ u2, u1} C (CategoryTheory.CategoryStruct.toQuiver.{u2, u1} C (CategoryTheory.Category.toCategoryStruct.{u2, u1} C (CategoryTheory.Groupoid.toCategory.{u2, u1} C _inst_1))) d d) (DivInvMonoid.toMonoid.{u2} (Quiver.Hom.{succ u2, u1} C (CategoryTheory.CategoryStruct.toQuiver.{u2, u1} C (CategoryTheory.Category.toCategoryStruct.{u2, u1} C (CategoryTheory.Groupoid.toCategory.{u2, u1} C _inst_1))) d d) (Group.toDivInvMonoid.{u2} (Quiver.Hom.{succ u2, u1} C (CategoryTheory.CategoryStruct.toQuiver.{u2, u1} C (CategoryTheory.Category.toCategoryStruct.{u2, u1} C (CategoryTheory.Groupoid.toCategory.{u2, u1} C _inst_1))) d d) (CategoryTheory.Groupoid.vertexGroup.{u1, u2} C _inst_1 d))))))
+but is expected to have type
+  forall {C : Type.{u1}} [_inst_1 : CategoryTheory.Groupoid.{u2, u1} C] {c : C} {d : C}, (Quiver.Hom.{succ u2, u1} C (CategoryTheory.CategoryStruct.toQuiver.{u2, u1} C (CategoryTheory.Category.toCategoryStruct.{u2, u1} C (CategoryTheory.Groupoid.toCategory.{u2, u1} C _inst_1))) c d) -> (MulEquiv.{u2, u2} (Quiver.Hom.{succ u2, u1} C (CategoryTheory.CategoryStruct.toQuiver.{u2, u1} C (CategoryTheory.Category.toCategoryStruct.{u2, u1} C (CategoryTheory.Groupoid.toCategory.{u2, u1} C _inst_1))) c c) (Quiver.Hom.{succ u2, u1} C (CategoryTheory.CategoryStruct.toQuiver.{u2, u1} C (CategoryTheory.Category.toCategoryStruct.{u2, u1} C (CategoryTheory.Groupoid.toCategory.{u2, u1} C _inst_1))) d d) (MulOneClass.toMul.{u2} (Quiver.Hom.{succ u2, u1} C (CategoryTheory.CategoryStruct.toQuiver.{u2, u1} C (CategoryTheory.Category.toCategoryStruct.{u2, u1} C (CategoryTheory.Groupoid.toCategory.{u2, u1} C _inst_1))) c c) (Monoid.toMulOneClass.{u2} (Quiver.Hom.{succ u2, u1} C (CategoryTheory.CategoryStruct.toQuiver.{u2, u1} C (CategoryTheory.Category.toCategoryStruct.{u2, u1} C (CategoryTheory.Groupoid.toCategory.{u2, u1} C _inst_1))) c c) (DivInvMonoid.toMonoid.{u2} (Quiver.Hom.{succ u2, u1} C (CategoryTheory.CategoryStruct.toQuiver.{u2, u1} C (CategoryTheory.Category.toCategoryStruct.{u2, u1} C (CategoryTheory.Groupoid.toCategory.{u2, u1} C _inst_1))) c c) (Group.toDivInvMonoid.{u2} (Quiver.Hom.{succ u2, u1} C (CategoryTheory.CategoryStruct.toQuiver.{u2, u1} C (CategoryTheory.Category.toCategoryStruct.{u2, u1} C (CategoryTheory.Groupoid.toCategory.{u2, u1} C _inst_1))) c c) (CategoryTheory.Groupoid.vertexGroup.{u1, u2} C _inst_1 c))))) (MulOneClass.toMul.{u2} (Quiver.Hom.{succ u2, u1} C (CategoryTheory.CategoryStruct.toQuiver.{u2, u1} C (CategoryTheory.Category.toCategoryStruct.{u2, u1} C (CategoryTheory.Groupoid.toCategory.{u2, u1} C _inst_1))) d d) (Monoid.toMulOneClass.{u2} (Quiver.Hom.{succ u2, u1} C (CategoryTheory.CategoryStruct.toQuiver.{u2, u1} C (CategoryTheory.Category.toCategoryStruct.{u2, u1} C (CategoryTheory.Groupoid.toCategory.{u2, u1} C _inst_1))) d d) (DivInvMonoid.toMonoid.{u2} (Quiver.Hom.{succ u2, u1} C (CategoryTheory.CategoryStruct.toQuiver.{u2, u1} C (CategoryTheory.Category.toCategoryStruct.{u2, u1} C (CategoryTheory.Groupoid.toCategory.{u2, u1} C _inst_1))) d d) (Group.toDivInvMonoid.{u2} (Quiver.Hom.{succ u2, u1} C (CategoryTheory.CategoryStruct.toQuiver.{u2, u1} C (CategoryTheory.Category.toCategoryStruct.{u2, u1} C (CategoryTheory.Groupoid.toCategory.{u2, u1} C _inst_1))) d d) (CategoryTheory.Groupoid.vertexGroup.{u1, u2} C _inst_1 d))))))
+Case conversion may be inaccurate. Consider using '#align category_theory.groupoid.vertex_group_isom_of_map CategoryTheory.Groupoid.vertexGroupIsomOfMapₓ'. -/
 /-- An arrow in the groupoid defines, by conjugation, an isomorphism of groups between
 its endpoints.
 -/
@@ -77,20 +91,33 @@ def vertexGroupIsomOfMap {c d : C} (f : c ⟶ d) : (c ⟶ c) ≃* (d ⟶ d)
     simp only [vertex_group_mul, inv_eq_inv, category.assoc, is_iso.hom_inv_id_assoc]
 #align category_theory.groupoid.vertex_group_isom_of_map CategoryTheory.Groupoid.vertexGroupIsomOfMap
 
+/- warning: category_theory.groupoid.vertex_group_isom_of_path -> CategoryTheory.Groupoid.vertexGroupIsomOfPath is a dubious translation:
+lean 3 declaration is
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+Case conversion may be inaccurate. Consider using '#align category_theory.groupoid.vertex_group_isom_of_path CategoryTheory.Groupoid.vertexGroupIsomOfPathₓ'. -/
 /-- A path in the groupoid defines an isomorphism between its endpoints.
 -/
 def vertexGroupIsomOfPath {c d : C} (p : Quiver.Path c d) : (c ⟶ c) ≃* (d ⟶ d) :=
   vertexGroupIsomOfMap (composePath p)
 #align category_theory.groupoid.vertex_group_isom_of_path CategoryTheory.Groupoid.vertexGroupIsomOfPath
 
+/- warning: category_theory.functor.map_vertex_group -> CategoryTheory.Groupoid.CategoryTheory.Functor.mapVertexGroup is a dubious translation:
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+  forall {C : Type.{u1}} [_inst_1 : CategoryTheory.Groupoid.{u3, u1} C] {D : Type.{u2}} [_inst_2 : CategoryTheory.Groupoid.{u4, u2} D] (φ : CategoryTheory.Functor.{u3, u4, u1, u2} C (CategoryTheory.Groupoid.toCategory.{u3, u1} C _inst_1) D (CategoryTheory.Groupoid.toCategory.{u4, u2} D _inst_2)) (c : C), MonoidHom.{u3, u4} (Quiver.Hom.{succ u3, u1} C (CategoryTheory.CategoryStruct.toQuiver.{u3, u1} C (CategoryTheory.Category.toCategoryStruct.{u3, u1} C (CategoryTheory.Groupoid.toCategory.{u3, u1} C _inst_1))) c c) (Quiver.Hom.{succ u4, u2} D (CategoryTheory.CategoryStruct.toQuiver.{u4, u2} D (CategoryTheory.Category.toCategoryStruct.{u4, u2} D (CategoryTheory.Groupoid.toCategory.{u4, u2} D _inst_2))) (CategoryTheory.Functor.obj.{u3, u4, u1, u2} C (CategoryTheory.Groupoid.toCategory.{u3, u1} C _inst_1) D (CategoryTheory.Groupoid.toCategory.{u4, u2} D _inst_2) φ c) (CategoryTheory.Functor.obj.{u3, u4, u1, u2} C (CategoryTheory.Groupoid.toCategory.{u3, u1} C _inst_1) D (CategoryTheory.Groupoid.toCategory.{u4, u2} D _inst_2) φ c)) (Monoid.toMulOneClass.{u3} (Quiver.Hom.{succ u3, u1} C (CategoryTheory.CategoryStruct.toQuiver.{u3, u1} C (CategoryTheory.Category.toCategoryStruct.{u3, u1} C (CategoryTheory.Groupoid.toCategory.{u3, u1} C _inst_1))) c c) (DivInvMonoid.toMonoid.{u3} (Quiver.Hom.{succ u3, u1} C (CategoryTheory.CategoryStruct.toQuiver.{u3, u1} C (CategoryTheory.Category.toCategoryStruct.{u3, u1} C (CategoryTheory.Groupoid.toCategory.{u3, u1} C _inst_1))) c c) (Group.toDivInvMonoid.{u3} (Quiver.Hom.{succ u3, u1} C (CategoryTheory.CategoryStruct.toQuiver.{u3, u1} C (CategoryTheory.Category.toCategoryStruct.{u3, u1} C (CategoryTheory.Groupoid.toCategory.{u3, u1} C _inst_1))) c c) (CategoryTheory.Groupoid.vertexGroup.{u1, u3} C _inst_1 c)))) (Monoid.toMulOneClass.{u4} (Quiver.Hom.{succ u4, u2} D (CategoryTheory.CategoryStruct.toQuiver.{u4, u2} D (CategoryTheory.Category.toCategoryStruct.{u4, u2} D (CategoryTheory.Groupoid.toCategory.{u4, u2} D _inst_2))) (CategoryTheory.Functor.obj.{u3, u4, u1, u2} C (CategoryTheory.Groupoid.toCategory.{u3, u1} C _inst_1) D (CategoryTheory.Groupoid.toCategory.{u4, u2} D _inst_2) φ c) (CategoryTheory.Functor.obj.{u3, u4, u1, u2} C (CategoryTheory.Groupoid.toCategory.{u3, u1} C _inst_1) D (CategoryTheory.Groupoid.toCategory.{u4, u2} D _inst_2) φ c)) (DivInvMonoid.toMonoid.{u4} (Quiver.Hom.{succ u4, u2} D (CategoryTheory.CategoryStruct.toQuiver.{u4, u2} D (CategoryTheory.Category.toCategoryStruct.{u4, u2} D (CategoryTheory.Groupoid.toCategory.{u4, u2} D _inst_2))) (CategoryTheory.Functor.obj.{u3, u4, u1, u2} C (CategoryTheory.Groupoid.toCategory.{u3, u1} C _inst_1) D (CategoryTheory.Groupoid.toCategory.{u4, u2} D _inst_2) φ c) (CategoryTheory.Functor.obj.{u3, u4, u1, u2} C (CategoryTheory.Groupoid.toCategory.{u3, u1} C _inst_1) D (CategoryTheory.Groupoid.toCategory.{u4, u2} D _inst_2) φ c)) (Group.toDivInvMonoid.{u4} (Quiver.Hom.{succ u4, u2} D (CategoryTheory.CategoryStruct.toQuiver.{u4, u2} D (CategoryTheory.Category.toCategoryStruct.{u4, u2} D (CategoryTheory.Groupoid.toCategory.{u4, u2} D _inst_2))) (CategoryTheory.Functor.obj.{u3, u4, u1, u2} C (CategoryTheory.Groupoid.toCategory.{u3, u1} C _inst_1) D (CategoryTheory.Groupoid.toCategory.{u4, u2} D _inst_2) φ c) (CategoryTheory.Functor.obj.{u3, u4, u1, u2} C (CategoryTheory.Groupoid.toCategory.{u3, u1} C _inst_1) D (CategoryTheory.Groupoid.toCategory.{u4, u2} D _inst_2) φ c)) (CategoryTheory.Groupoid.vertexGroup.{u2, u4} D _inst_2 (CategoryTheory.Functor.obj.{u3, u4, u1, u2} C (CategoryTheory.Groupoid.toCategory.{u3, u1} C _inst_1) D (CategoryTheory.Groupoid.toCategory.{u4, u2} D _inst_2) φ c)))))
+but is expected to have type
+  forall {C : Type.{u1}} [_inst_1 : CategoryTheory.Groupoid.{u3, u1} C] {D : Type.{u2}} [_inst_2 : CategoryTheory.Groupoid.{u4, u2} D] (φ : CategoryTheory.Functor.{u3, u4, u1, u2} C (CategoryTheory.Groupoid.toCategory.{u3, u1} C _inst_1) D (CategoryTheory.Groupoid.toCategory.{u4, u2} D _inst_2)) (c : C), MonoidHom.{u3, u4} (Quiver.Hom.{succ u3, u1} C (CategoryTheory.CategoryStruct.toQuiver.{u3, u1} C (CategoryTheory.Category.toCategoryStruct.{u3, u1} C (CategoryTheory.Groupoid.toCategory.{u3, u1} C _inst_1))) c c) (Quiver.Hom.{succ u4, u2} D (CategoryTheory.CategoryStruct.toQuiver.{u4, u2} D (CategoryTheory.Category.toCategoryStruct.{u4, u2} D (CategoryTheory.Groupoid.toCategory.{u4, u2} D _inst_2))) (Prefunctor.obj.{succ u3, succ u4, u1, u2} C (CategoryTheory.CategoryStruct.toQuiver.{u3, u1} C (CategoryTheory.Category.toCategoryStruct.{u3, u1} C (CategoryTheory.Groupoid.toCategory.{u3, u1} C _inst_1))) D (CategoryTheory.CategoryStruct.toQuiver.{u4, u2} D (CategoryTheory.Category.toCategoryStruct.{u4, u2} D (CategoryTheory.Groupoid.toCategory.{u4, u2} D _inst_2))) (CategoryTheory.Functor.toPrefunctor.{u3, u4, u1, u2} C (CategoryTheory.Groupoid.toCategory.{u3, u1} C _inst_1) D (CategoryTheory.Groupoid.toCategory.{u4, u2} D _inst_2) φ) c) (Prefunctor.obj.{succ u3, succ u4, u1, u2} C (CategoryTheory.CategoryStruct.toQuiver.{u3, u1} C (CategoryTheory.Category.toCategoryStruct.{u3, u1} C (CategoryTheory.Groupoid.toCategory.{u3, u1} C _inst_1))) D (CategoryTheory.CategoryStruct.toQuiver.{u4, u2} D (CategoryTheory.Category.toCategoryStruct.{u4, u2} D (CategoryTheory.Groupoid.toCategory.{u4, u2} D _inst_2))) (CategoryTheory.Functor.toPrefunctor.{u3, u4, u1, u2} C (CategoryTheory.Groupoid.toCategory.{u3, u1} C _inst_1) D (CategoryTheory.Groupoid.toCategory.{u4, u2} D _inst_2) φ) c)) (Monoid.toMulOneClass.{u3} (Quiver.Hom.{succ u3, u1} C (CategoryTheory.CategoryStruct.toQuiver.{u3, u1} C (CategoryTheory.Category.toCategoryStruct.{u3, u1} C (CategoryTheory.Groupoid.toCategory.{u3, u1} C _inst_1))) c c) (DivInvMonoid.toMonoid.{u3} (Quiver.Hom.{succ u3, u1} C (CategoryTheory.CategoryStruct.toQuiver.{u3, u1} C (CategoryTheory.Category.toCategoryStruct.{u3, u1} C (CategoryTheory.Groupoid.toCategory.{u3, u1} C _inst_1))) c c) (Group.toDivInvMonoid.{u3} (Quiver.Hom.{succ u3, u1} C (CategoryTheory.CategoryStruct.toQuiver.{u3, u1} C (CategoryTheory.Category.toCategoryStruct.{u3, u1} C (CategoryTheory.Groupoid.toCategory.{u3, u1} C _inst_1))) c c) (CategoryTheory.Groupoid.vertexGroup.{u1, u3} C _inst_1 c)))) (Monoid.toMulOneClass.{u4} (Quiver.Hom.{succ u4, u2} D (CategoryTheory.CategoryStruct.toQuiver.{u4, u2} D (CategoryTheory.Category.toCategoryStruct.{u4, u2} D (CategoryTheory.Groupoid.toCategory.{u4, u2} D _inst_2))) (Prefunctor.obj.{succ u3, succ u4, u1, u2} C (CategoryTheory.CategoryStruct.toQuiver.{u3, u1} C (CategoryTheory.Category.toCategoryStruct.{u3, u1} C (CategoryTheory.Groupoid.toCategory.{u3, u1} C _inst_1))) D (CategoryTheory.CategoryStruct.toQuiver.{u4, u2} D (CategoryTheory.Category.toCategoryStruct.{u4, u2} D (CategoryTheory.Groupoid.toCategory.{u4, u2} D _inst_2))) (CategoryTheory.Functor.toPrefunctor.{u3, u4, u1, u2} C (CategoryTheory.Groupoid.toCategory.{u3, u1} C _inst_1) D (CategoryTheory.Groupoid.toCategory.{u4, u2} D _inst_2) φ) c) (Prefunctor.obj.{succ u3, succ u4, u1, u2} C (CategoryTheory.CategoryStruct.toQuiver.{u3, u1} C (CategoryTheory.Category.toCategoryStruct.{u3, u1} C (CategoryTheory.Groupoid.toCategory.{u3, u1} C _inst_1))) D (CategoryTheory.CategoryStruct.toQuiver.{u4, u2} D (CategoryTheory.Category.toCategoryStruct.{u4, u2} D (CategoryTheory.Groupoid.toCategory.{u4, u2} D _inst_2))) (CategoryTheory.Functor.toPrefunctor.{u3, u4, u1, u2} C (CategoryTheory.Groupoid.toCategory.{u3, u1} C _inst_1) D (CategoryTheory.Groupoid.toCategory.{u4, u2} D _inst_2) φ) c)) (DivInvMonoid.toMonoid.{u4} (Quiver.Hom.{succ u4, u2} D (CategoryTheory.CategoryStruct.toQuiver.{u4, u2} D (CategoryTheory.Category.toCategoryStruct.{u4, u2} D (CategoryTheory.Groupoid.toCategory.{u4, u2} D _inst_2))) (Prefunctor.obj.{succ u3, succ u4, u1, u2} C (CategoryTheory.CategoryStruct.toQuiver.{u3, u1} C (CategoryTheory.Category.toCategoryStruct.{u3, u1} C (CategoryTheory.Groupoid.toCategory.{u3, u1} C _inst_1))) D (CategoryTheory.CategoryStruct.toQuiver.{u4, u2} D (CategoryTheory.Category.toCategoryStruct.{u4, u2} D (CategoryTheory.Groupoid.toCategory.{u4, u2} D _inst_2))) (CategoryTheory.Functor.toPrefunctor.{u3, u4, u1, u2} C (CategoryTheory.Groupoid.toCategory.{u3, u1} C _inst_1) D (CategoryTheory.Groupoid.toCategory.{u4, u2} D _inst_2) φ) c) (Prefunctor.obj.{succ u3, succ u4, u1, u2} C (CategoryTheory.CategoryStruct.toQuiver.{u3, u1} C (CategoryTheory.Category.toCategoryStruct.{u3, u1} C (CategoryTheory.Groupoid.toCategory.{u3, u1} C _inst_1))) D (CategoryTheory.CategoryStruct.toQuiver.{u4, u2} D (CategoryTheory.Category.toCategoryStruct.{u4, u2} D (CategoryTheory.Groupoid.toCategory.{u4, u2} D _inst_2))) (CategoryTheory.Functor.toPrefunctor.{u3, u4, u1, u2} C (CategoryTheory.Groupoid.toCategory.{u3, u1} C _inst_1) D (CategoryTheory.Groupoid.toCategory.{u4, u2} D _inst_2) φ) c)) (Group.toDivInvMonoid.{u4} (Quiver.Hom.{succ u4, u2} D (CategoryTheory.CategoryStruct.toQuiver.{u4, u2} D (CategoryTheory.Category.toCategoryStruct.{u4, u2} D (CategoryTheory.Groupoid.toCategory.{u4, u2} D _inst_2))) (Prefunctor.obj.{succ u3, succ u4, u1, u2} C (CategoryTheory.CategoryStruct.toQuiver.{u3, u1} C (CategoryTheory.Category.toCategoryStruct.{u3, u1} C (CategoryTheory.Groupoid.toCategory.{u3, u1} C _inst_1))) D (CategoryTheory.CategoryStruct.toQuiver.{u4, u2} D (CategoryTheory.Category.toCategoryStruct.{u4, u2} D (CategoryTheory.Groupoid.toCategory.{u4, u2} D _inst_2))) (CategoryTheory.Functor.toPrefunctor.{u3, u4, u1, u2} C (CategoryTheory.Groupoid.toCategory.{u3, u1} C _inst_1) D (CategoryTheory.Groupoid.toCategory.{u4, u2} D _inst_2) φ) c) (Prefunctor.obj.{succ u3, succ u4, u1, u2} C (CategoryTheory.CategoryStruct.toQuiver.{u3, u1} C (CategoryTheory.Category.toCategoryStruct.{u3, u1} C (CategoryTheory.Groupoid.toCategory.{u3, u1} C _inst_1))) D (CategoryTheory.CategoryStruct.toQuiver.{u4, u2} D (CategoryTheory.Category.toCategoryStruct.{u4, u2} D (CategoryTheory.Groupoid.toCategory.{u4, u2} D _inst_2))) (CategoryTheory.Functor.toPrefunctor.{u3, u4, u1, u2} C (CategoryTheory.Groupoid.toCategory.{u3, u1} C _inst_1) D (CategoryTheory.Groupoid.toCategory.{u4, u2} D _inst_2) φ) c)) (CategoryTheory.Groupoid.vertexGroup.{u2, u4} D _inst_2 (Prefunctor.obj.{succ u3, succ u4, u1, u2} C (CategoryTheory.CategoryStruct.toQuiver.{u3, u1} C (CategoryTheory.Category.toCategoryStruct.{u3, u1} C (CategoryTheory.Groupoid.toCategory.{u3, u1} C _inst_1))) D (CategoryTheory.CategoryStruct.toQuiver.{u4, u2} D (CategoryTheory.Category.toCategoryStruct.{u4, u2} D (CategoryTheory.Groupoid.toCategory.{u4, u2} D _inst_2))) (CategoryTheory.Functor.toPrefunctor.{u3, u4, u1, u2} C (CategoryTheory.Groupoid.toCategory.{u3, u1} C _inst_1) D (CategoryTheory.Groupoid.toCategory.{u4, u2} D _inst_2) φ) c)))))
+Case conversion may be inaccurate. Consider using '#align category_theory.functor.map_vertex_group CategoryTheory.Groupoid.CategoryTheory.Functor.mapVertexGroupₓ'. -/
 /-- A functor defines a morphism of vertex group. -/
 @[simps]
-def CategoryTheory.Functor.mapVertexGroup {D : Type v} [Groupoid D] (φ : C ⥤ D) (c : C) :
-    (c ⟶ c) →* (φ.obj c ⟶ φ.obj c) where
+def CategoryTheory.Groupoid.CategoryTheory.Functor.mapVertexGroup {D : Type v} [Groupoid D]
+    (φ : C ⥤ D) (c : C) : (c ⟶ c) →* (φ.obj c ⟶ φ.obj c)
+    where
   toFun := φ.map
   map_one' := φ.map_id c
   map_mul' := φ.map_comp
-#align category_theory.functor.map_vertex_group CategoryTheory.Functor.mapVertexGroup
+#align category_theory.functor.map_vertex_group CategoryTheory.Groupoid.CategoryTheory.Functor.mapVertexGroup
 
 end Groupoid

47b51515

bump to nightly-2023-02-21-16

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

1107b979

Changes in mathlib4

mathlib3

mathlib4

47b51515

move: Move MonoidWithZeroHom to its own file (#10438)

MonoidWithZeroHom confusingly pulled Algebra.GroupWithZero.Defs in Algebra.Group.Hom.Defs.

2524d76a

Diff

@@ -3,11 +3,9 @@ Copyright (c) 2022 Rémi Bottinelli. All rights reserved.
 Released under Apache 2.0 license as described in the file LICENSE.
 Authors: Rémi Bottinelli
 -/
+import Mathlib.Algebra.Group.Equiv.Basic
 import Mathlib.CategoryTheory.Groupoid
 import Mathlib.CategoryTheory.PathCategory
-import Mathlib.Algebra.Group.Defs
-import Mathlib.Algebra.Group.Hom.Defs
-import Mathlib.Algebra.Group.Equiv.Basic
 import Mathlib.Combinatorics.Quiver.Path
 
 #align_import category_theory.groupoid.vertex_group from "leanprover-community/mathlib"@"47b51515e69f59bca5cf34ef456e6000fe205a69"

47b51515

chore: reduce imports (#9830)

This uses the improved shake script from #9772 to reduce imports across mathlib. The corresponding noshake.json file has been added to #9772.

Co-authored-by: Mario Carneiro <di.gama@gmail.com>

f4c4ca61

Diff

@@ -9,7 +9,6 @@ import Mathlib.Algebra.Group.Defs
 import Mathlib.Algebra.Group.Hom.Defs
 import Mathlib.Algebra.Group.Equiv.Basic
 import Mathlib.Combinatorics.Quiver.Path
-import Mathlib.Combinatorics.Quiver.ConnectedComponent
 
 #align_import category_theory.groupoid.vertex_group from "leanprover-community/mathlib"@"47b51515e69f59bca5cf34ef456e6000fe205a69"

47b51515

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

@@ -6,8 +6,8 @@ Authors: Rémi Bottinelli
 import Mathlib.CategoryTheory.Groupoid
 import Mathlib.CategoryTheory.PathCategory
 import Mathlib.Algebra.Group.Defs
-import Mathlib.Algebra.Hom.Group.Defs
-import Mathlib.Algebra.Hom.Equiv.Basic
+import Mathlib.Algebra.Group.Hom.Defs
+import Mathlib.Algebra.Group.Equiv.Basic
 import Mathlib.Combinatorics.Quiver.Path
 import Mathlib.Combinatorics.Quiver.ConnectedComponent

47b51515

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

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

260cb506

Diff

@@ -6,7 +6,7 @@ Authors: Rémi Bottinelli
 import Mathlib.CategoryTheory.Groupoid
 import Mathlib.CategoryTheory.PathCategory
 import Mathlib.Algebra.Group.Defs
-import Mathlib.Algebra.Hom.Group
+import Mathlib.Algebra.Hom.Group.Defs
 import Mathlib.Algebra.Hom.Equiv.Basic
 import Mathlib.Combinatorics.Quiver.Path
 import Mathlib.Combinatorics.Quiver.ConnectedComponent

47b51515

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

@@ -2,11 +2,6 @@
 Copyright (c) 2022 Rémi Bottinelli. All rights reserved.
 Released under Apache 2.0 license as described in the file LICENSE.
 Authors: Rémi Bottinelli
-
-! This file was ported from Lean 3 source module category_theory.groupoid.vertex_group
-! leanprover-community/mathlib commit 47b51515e69f59bca5cf34ef456e6000fe205a69
-! Please do not edit these lines, except to modify the commit id
-! if you have ported upstream changes.
 -/
 import Mathlib.CategoryTheory.Groupoid
 import Mathlib.CategoryTheory.PathCategory
@@ -16,6 +11,8 @@ import Mathlib.Algebra.Hom.Equiv.Basic
 import Mathlib.Combinatorics.Quiver.Path
 import Mathlib.Combinatorics.Quiver.ConnectedComponent
 
+#align_import category_theory.groupoid.vertex_group from "leanprover-community/mathlib"@"47b51515e69f59bca5cf34ef456e6000fe205a69"
+
 /-!
 # Vertex group

47b51515

chore: forward port of #18742, no simps lemmas for Category.Hom (#3340)

This is the forward port of https://github.com/leanprover-community/mathlib/pull/18742. That PR hasn't landed yet, so this PR still needs to be updated with the new commit SHA.

Co-authored-by: Scott Morrison <scott.morrison@gmail.com> Co-authored-by: Joël Riou <joel.riou@universite-paris-saclay.fr>

e44913f3

Diff

@@ -14,6 +14,7 @@ import Mathlib.Algebra.Group.Defs
 import Mathlib.Algebra.Hom.Group
 import Mathlib.Algebra.Hom.Equiv.Basic
 import Mathlib.Combinatorics.Quiver.Path
+import Mathlib.Combinatorics.Quiver.ConnectedComponent
 
 /-!
 # Vertex group

47b51515

feat: port CategoryTheory.Groupoid.VertexGroup (#2609)

depends on: #2883

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

d1cfe4d7

`category_theory.groupoid.vertex_group` ⟷ `Mathlib.CategoryTheory.Groupoid.VertexGroup`

Changes since the initial port

Changes in mathlib3

Changes in mathlib3port

Changes in mathlib4

Dependencies 60

category_theory.groupoid.vertex_group ⟷ Mathlib.CategoryTheory.Groupoid.VertexGroup

Changes since the initial port

Changes in mathlib3

Changes in mathlib3port

Changes in mathlib4

Dependencies 60

`category_theory.groupoid.vertex_group` ⟷ `Mathlib.CategoryTheory.Groupoid.VertexGroup`