topology.category.Top.basic | 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

bcfa7268

(last sync)

Changes in mathlib3port

mathlib3

mathlib3port

814d76e2

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) 2017 Scott Morrison. All rights reserved.
 Released under Apache 2.0 license as described in the file LICENSE.
 Authors: Patrick Massot, Scott Morrison, Mario Carneiro
 -/
-import Mathbin.CategoryTheory.ConcreteCategory.BundledHom
-import Mathbin.CategoryTheory.Elementwise
-import Mathbin.Topology.ContinuousFunction.Basic
+import CategoryTheory.ConcreteCategory.BundledHom
+import CategoryTheory.Elementwise
+import Topology.ContinuousFunction.Basic
 
 #align_import topology.category.Top.basic from "leanprover-community/mathlib"@"814d76e2247d5ba8bc024843552da1278bfe9e5c"

814d76e2

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) 2017 Scott Morrison. All rights reserved.
 Released under Apache 2.0 license as described in the file LICENSE.
 Authors: Patrick Massot, Scott Morrison, Mario Carneiro
-
-! This file was ported from Lean 3 source module topology.category.Top.basic
-! leanprover-community/mathlib commit 814d76e2247d5ba8bc024843552da1278bfe9e5c
-! Please do not edit these lines, except to modify the commit id
-! if you have ported upstream changes.
 -/
 import Mathbin.CategoryTheory.ConcreteCategory.BundledHom
 import Mathbin.CategoryTheory.Elementwise
 import Mathbin.Topology.ContinuousFunction.Basic
 
+#align_import topology.category.Top.basic from "leanprover-community/mathlib"@"814d76e2247d5ba8bc024843552da1278bfe9e5c"
+
 /-!
 # Category instance for topological spaces

814d76e2

bump to nightly-2023-06-13-21

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

829520ac

Diff

@@ -57,16 +57,20 @@ instance topologicalSpaceUnbundled (x : TopCat) : TopologicalSpace x :=
 #align Top.topological_space_unbundled TopCat.topologicalSpaceUnbundled
 -/
 
+#print TopCat.id_app /-
 @[simp]
 theorem id_app (X : TopCat.{u}) (x : X) : (𝟙 X : X → X) x = x :=
   rfl
 #align Top.id_app TopCat.id_app
+-/
 
+#print TopCat.comp_app /-
 @[simp]
 theorem comp_app {X Y Z : TopCat.{u}} (f : X ⟶ Y) (g : Y ⟶ Z) (x : X) :
     (f ≫ g : X → Z) x = g (f x) :=
   rfl
 #align Top.comp_app TopCat.comp_app
+-/
 
 #print TopCat.of /-
 /-- Construct a bundled `Top` from the underlying type and the typeclass. -/
@@ -147,12 +151,15 @@ theorem of_homeoOfIso {X Y : TopCat.{u}} (f : X ≅ Y) : isoOfHomeo (homeoOfIso
 #align Top.of_homeo_of_iso TopCat.of_homeoOfIso
 -/
 
+#print TopCat.openEmbedding_iff_comp_isIso /-
 @[simp]
 theorem openEmbedding_iff_comp_isIso {X Y Z : TopCat} (f : X ⟶ Y) (g : Y ⟶ Z) [IsIso g] :
     OpenEmbedding (f ≫ g) ↔ OpenEmbedding f :=
   (TopCat.homeoOfIso (asIso g)).OpenEmbedding.of_comp_iff f
 #align Top.open_embedding_iff_comp_is_iso TopCat.openEmbedding_iff_comp_isIso
+-/
 
+#print TopCat.openEmbedding_iff_isIso_comp /-
 @[simp]
 theorem openEmbedding_iff_isIso_comp {X Y Z : TopCat} (f : X ⟶ Y) (g : Y ⟶ Z) [IsIso f] :
     OpenEmbedding (f ≫ g) ↔ OpenEmbedding g :=
@@ -163,6 +170,7 @@ theorem openEmbedding_iff_isIso_comp {X Y Z : TopCat} (f : X ⟶ Y) (g : Y ⟶ Z
     exact congr_arg _ (is_iso.inv_hom_id_assoc f g).symm
   · exact fun h => h.comp (TopCat.homeoOfIso (as_iso f)).OpenEmbedding
 #align Top.open_embedding_iff_is_iso_comp TopCat.openEmbedding_iff_isIso_comp
+-/
 
 end TopCat

814d76e2

bump to nightly-2023-05-28-06

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

ba5d8b97

Diff

@@ -57,23 +57,11 @@ instance topologicalSpaceUnbundled (x : TopCat) : TopologicalSpace x :=
 #align Top.topological_space_unbundled TopCat.topologicalSpaceUnbundled
 -/
 
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-Case conversion may be inaccurate. Consider using '#align Top.id_app TopCat.id_appₓ'. -/
 @[simp]
 theorem id_app (X : TopCat.{u}) (x : X) : (𝟙 X : X → X) x = x :=
   rfl
 #align Top.id_app TopCat.id_app
 
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-Case conversion may be inaccurate. Consider using '#align Top.comp_app TopCat.comp_appₓ'. -/
 @[simp]
 theorem comp_app {X Y Z : TopCat.{u}} (f : X ⟶ Y) (g : Y ⟶ Z) (x : X) :
     (f ≫ g : X → Z) x = g (f x) :=
@@ -159,24 +147,12 @@ theorem of_homeoOfIso {X Y : TopCat.{u}} (f : X ≅ Y) : isoOfHomeo (homeoOfIso
 #align Top.of_homeo_of_iso TopCat.of_homeoOfIso
 -/
 
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 @[simp]
 theorem openEmbedding_iff_comp_isIso {X Y Z : TopCat} (f : X ⟶ Y) (g : Y ⟶ Z) [IsIso g] :
     OpenEmbedding (f ≫ g) ↔ OpenEmbedding f :=
   (TopCat.homeoOfIso (asIso g)).OpenEmbedding.of_comp_iff f
 #align Top.open_embedding_iff_comp_is_iso TopCat.openEmbedding_iff_comp_isIso
 
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-Case conversion may be inaccurate. Consider using '#align Top.open_embedding_iff_is_iso_comp TopCat.openEmbedding_iff_isIso_compₓ'. -/
 @[simp]
 theorem openEmbedding_iff_isIso_comp {X Y Z : TopCat} (f : X ⟶ Y) (g : Y ⟶ Z) [IsIso f] :
     OpenEmbedding (f ≫ g) ↔ OpenEmbedding g :=

814d76e2

bump to nightly-2023-05-28-04

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

6797a637

Diff

@@ -149,19 +149,13 @@ def homeoOfIso {X Y : TopCat.{u}} (f : X ≅ Y) : X ≃ₜ Y
 
 #print TopCat.of_isoOfHomeo /-
 @[simp]
-theorem of_isoOfHomeo {X Y : TopCat.{u}} (f : X ≃ₜ Y) : homeoOfIso (isoOfHomeo f) = f :=
-  by
-  ext
-  rfl
+theorem of_isoOfHomeo {X Y : TopCat.{u}} (f : X ≃ₜ Y) : homeoOfIso (isoOfHomeo f) = f := by ext; rfl
 #align Top.of_iso_of_homeo TopCat.of_isoOfHomeo
 -/
 
 #print TopCat.of_homeoOfIso /-
 @[simp]
-theorem of_homeoOfIso {X Y : TopCat.{u}} (f : X ≅ Y) : isoOfHomeo (homeoOfIso f) = f :=
-  by
-  ext
-  rfl
+theorem of_homeoOfIso {X Y : TopCat.{u}} (f : X ≅ Y) : isoOfHomeo (homeoOfIso f) = f := by ext; rfl
 #align Top.of_homeo_of_iso TopCat.of_homeoOfIso
 -/

814d76e2

bump to nightly-2023-04-27-16

mathlib commit https://github.com/leanprover-community/mathlib/commit/9b2b58d6b14b895b2f375108e765cb47de71aebd

c8f7a684

Diff

@@ -169,7 +169,7 @@ theorem of_homeoOfIso {X Y : TopCat.{u}} (f : X ≅ Y) : isoOfHomeo (homeoOfIso
 lean 3 declaration is
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(TopCat.instTopologicalSpaceObjTopCatToQuiverToCategoryStructInstTopCatLargeCategoryTypeTypesToPrefunctorForgetConcreteCategory.{u1} X) (TopCat.instTopologicalSpaceObjTopCatToQuiverToCategoryStructInstTopCatLargeCategoryTypeTypesToPrefunctorForgetConcreteCategory.{u1} Z) (Prefunctor.map.{succ u1, succ u1, succ u1, succ u1} TopCat.{u1} (CategoryTheory.CategoryStruct.toQuiver.{u1, succ u1} TopCat.{u1} (CategoryTheory.Category.toCategoryStruct.{u1, succ u1} TopCat.{u1} instTopCatLargeCategory.{u1})) Type.{u1} (CategoryTheory.CategoryStruct.toQuiver.{u1, succ u1} Type.{u1} (CategoryTheory.Category.toCategoryStruct.{u1, succ u1} Type.{u1} CategoryTheory.types.{u1})) (CategoryTheory.Functor.toPrefunctor.{u1, u1, succ u1, succ u1} TopCat.{u1} instTopCatLargeCategory.{u1} Type.{u1} CategoryTheory.types.{u1} (CategoryTheory.forget.{succ u1, u1, u1} TopCat.{u1} instTopCatLargeCategory.{u1} TopCat.concreteCategory.{u1})) X Z (CategoryTheory.CategoryStruct.comp.{u1, succ u1} TopCat.{u1} (CategoryTheory.Category.toCategoryStruct.{u1, succ u1} TopCat.{u1} instTopCatLargeCategory.{u1}) X Y Z f g))) (OpenEmbedding.{u1, u1} (Prefunctor.obj.{succ u1, succ u1, succ u1, succ u1} TopCat.{u1} (CategoryTheory.CategoryStruct.toQuiver.{u1, succ u1} TopCat.{u1} (CategoryTheory.Category.toCategoryStruct.{u1, succ u1} TopCat.{u1} instTopCatLargeCategory.{u1})) Type.{u1} (CategoryTheory.CategoryStruct.toQuiver.{u1, succ u1} Type.{u1} (CategoryTheory.Category.toCategoryStruct.{u1, succ u1} Type.{u1} CategoryTheory.types.{u1})) (CategoryTheory.Functor.toPrefunctor.{u1, u1, succ u1, succ u1} TopCat.{u1} instTopCatLargeCategory.{u1} Type.{u1} CategoryTheory.types.{u1} (CategoryTheory.forget.{succ u1, u1, u1} TopCat.{u1} instTopCatLargeCategory.{u1} TopCat.concreteCategory.{u1})) X) (Prefunctor.obj.{succ u1, succ u1, succ u1, succ u1} TopCat.{u1} (CategoryTheory.CategoryStruct.toQuiver.{u1, succ u1} TopCat.{u1} (CategoryTheory.Category.toCategoryStruct.{u1, succ u1} TopCat.{u1} instTopCatLargeCategory.{u1})) Type.{u1} (CategoryTheory.CategoryStruct.toQuiver.{u1, succ u1} Type.{u1} (CategoryTheory.Category.toCategoryStruct.{u1, succ u1} Type.{u1} CategoryTheory.types.{u1})) (CategoryTheory.Functor.toPrefunctor.{u1, u1, succ u1, succ u1} TopCat.{u1} instTopCatLargeCategory.{u1} Type.{u1} CategoryTheory.types.{u1} (CategoryTheory.forget.{succ u1, u1, u1} TopCat.{u1} instTopCatLargeCategory.{u1} TopCat.concreteCategory.{u1})) Y) (TopCat.instTopologicalSpaceObjTopCatToQuiverToCategoryStructInstTopCatLargeCategoryTypeTypesToPrefunctorForgetConcreteCategory.{u1} X) (TopCat.instTopologicalSpaceObjTopCatToQuiverToCategoryStructInstTopCatLargeCategoryTypeTypesToPrefunctorForgetConcreteCategory.{u1} Y) (Prefunctor.map.{succ u1, succ u1, succ u1, succ u1} TopCat.{u1} (CategoryTheory.CategoryStruct.toQuiver.{u1, succ u1} TopCat.{u1} (CategoryTheory.Category.toCategoryStruct.{u1, succ u1} TopCat.{u1} instTopCatLargeCategory.{u1})) Type.{u1} (CategoryTheory.CategoryStruct.toQuiver.{u1, succ u1} Type.{u1} (CategoryTheory.Category.toCategoryStruct.{u1, succ u1} Type.{u1} CategoryTheory.types.{u1})) (CategoryTheory.Functor.toPrefunctor.{u1, u1, succ u1, succ u1} TopCat.{u1} instTopCatLargeCategory.{u1} Type.{u1} CategoryTheory.types.{u1} (CategoryTheory.forget.{succ u1, u1, u1} TopCat.{u1} instTopCatLargeCategory.{u1} TopCat.concreteCategory.{u1})) X Y f))
+  forall {X : TopCat.{u1}} {Y : TopCat.{u1}} {Z : TopCat.{u1}} (f : Quiver.Hom.{succ u1, succ u1} TopCat.{u1} (CategoryTheory.CategoryStruct.toQuiver.{u1, succ u1} TopCat.{u1} (CategoryTheory.Category.toCategoryStruct.{u1, succ u1} TopCat.{u1} instTopCatLargeCategory.{u1})) X Y) (g : Quiver.Hom.{succ u1, succ u1} TopCat.{u1} (CategoryTheory.CategoryStruct.toQuiver.{u1, succ u1} TopCat.{u1} (CategoryTheory.Category.toCategoryStruct.{u1, succ u1} TopCat.{u1} instTopCatLargeCategory.{u1})) Y Z) [_inst_1 : CategoryTheory.IsIso.{u1, succ u1} TopCat.{u1} instTopCatLargeCategory.{u1} Y Z g], Iff (OpenEmbedding.{u1, u1} (Prefunctor.obj.{succ u1, succ u1, succ u1, succ u1} TopCat.{u1} (CategoryTheory.CategoryStruct.toQuiver.{u1, succ u1} TopCat.{u1} (CategoryTheory.Category.toCategoryStruct.{u1, succ u1} TopCat.{u1} instTopCatLargeCategory.{u1})) Type.{u1} (CategoryTheory.CategoryStruct.toQuiver.{u1, succ u1} Type.{u1} (CategoryTheory.Category.toCategoryStruct.{u1, succ u1} Type.{u1} CategoryTheory.types.{u1})) (CategoryTheory.Functor.toPrefunctor.{u1, u1, succ u1, succ u1} TopCat.{u1} instTopCatLargeCategory.{u1} Type.{u1} CategoryTheory.types.{u1} (CategoryTheory.forget.{succ u1, u1, u1} TopCat.{u1} instTopCatLargeCategory.{u1} TopCat.concreteCategory.{u1})) X) (Prefunctor.obj.{succ u1, succ u1, succ u1, succ u1} TopCat.{u1} (CategoryTheory.CategoryStruct.toQuiver.{u1, succ u1} TopCat.{u1} (CategoryTheory.Category.toCategoryStruct.{u1, succ u1} TopCat.{u1} instTopCatLargeCategory.{u1})) Type.{u1} (CategoryTheory.CategoryStruct.toQuiver.{u1, succ u1} Type.{u1} (CategoryTheory.Category.toCategoryStruct.{u1, succ u1} Type.{u1} CategoryTheory.types.{u1})) (CategoryTheory.Functor.toPrefunctor.{u1, u1, succ u1, succ u1} TopCat.{u1} instTopCatLargeCategory.{u1} Type.{u1} CategoryTheory.types.{u1} (CategoryTheory.forget.{succ u1, u1, u1} TopCat.{u1} instTopCatLargeCategory.{u1} TopCat.concreteCategory.{u1})) Z) (TopCat.topologicalSpace_forget.{u1} X) (TopCat.topologicalSpace_forget.{u1} Z) (Prefunctor.map.{succ u1, succ u1, succ u1, succ u1} TopCat.{u1} (CategoryTheory.CategoryStruct.toQuiver.{u1, succ u1} TopCat.{u1} (CategoryTheory.Category.toCategoryStruct.{u1, succ u1} TopCat.{u1} instTopCatLargeCategory.{u1})) Type.{u1} (CategoryTheory.CategoryStruct.toQuiver.{u1, succ u1} Type.{u1} (CategoryTheory.Category.toCategoryStruct.{u1, succ u1} Type.{u1} CategoryTheory.types.{u1})) (CategoryTheory.Functor.toPrefunctor.{u1, u1, succ u1, succ u1} TopCat.{u1} instTopCatLargeCategory.{u1} Type.{u1} CategoryTheory.types.{u1} (CategoryTheory.forget.{succ u1, u1, u1} TopCat.{u1} instTopCatLargeCategory.{u1} TopCat.concreteCategory.{u1})) X Z (CategoryTheory.CategoryStruct.comp.{u1, succ u1} TopCat.{u1} (CategoryTheory.Category.toCategoryStruct.{u1, succ u1} TopCat.{u1} instTopCatLargeCategory.{u1}) X Y Z f g))) (OpenEmbedding.{u1, u1} (Prefunctor.obj.{succ u1, succ u1, succ u1, succ u1} TopCat.{u1} (CategoryTheory.CategoryStruct.toQuiver.{u1, succ u1} TopCat.{u1} (CategoryTheory.Category.toCategoryStruct.{u1, succ u1} TopCat.{u1} instTopCatLargeCategory.{u1})) Type.{u1} (CategoryTheory.CategoryStruct.toQuiver.{u1, succ u1} Type.{u1} (CategoryTheory.Category.toCategoryStruct.{u1, succ u1} Type.{u1} CategoryTheory.types.{u1})) (CategoryTheory.Functor.toPrefunctor.{u1, u1, succ u1, succ u1} TopCat.{u1} instTopCatLargeCategory.{u1} Type.{u1} CategoryTheory.types.{u1} (CategoryTheory.forget.{succ u1, u1, u1} TopCat.{u1} instTopCatLargeCategory.{u1} TopCat.concreteCategory.{u1})) X) (Prefunctor.obj.{succ u1, succ u1, succ u1, succ u1} TopCat.{u1} (CategoryTheory.CategoryStruct.toQuiver.{u1, succ u1} TopCat.{u1} (CategoryTheory.Category.toCategoryStruct.{u1, succ u1} TopCat.{u1} instTopCatLargeCategory.{u1})) Type.{u1} (CategoryTheory.CategoryStruct.toQuiver.{u1, succ u1} Type.{u1} (CategoryTheory.Category.toCategoryStruct.{u1, succ u1} Type.{u1} CategoryTheory.types.{u1})) (CategoryTheory.Functor.toPrefunctor.{u1, u1, succ u1, succ u1} TopCat.{u1} instTopCatLargeCategory.{u1} Type.{u1} CategoryTheory.types.{u1} (CategoryTheory.forget.{succ u1, u1, u1} TopCat.{u1} instTopCatLargeCategory.{u1} TopCat.concreteCategory.{u1})) Y) (TopCat.topologicalSpace_forget.{u1} X) (TopCat.topologicalSpace_forget.{u1} Y) (Prefunctor.map.{succ u1, succ u1, succ u1, succ u1} TopCat.{u1} (CategoryTheory.CategoryStruct.toQuiver.{u1, succ u1} TopCat.{u1} (CategoryTheory.Category.toCategoryStruct.{u1, succ u1} TopCat.{u1} instTopCatLargeCategory.{u1})) Type.{u1} (CategoryTheory.CategoryStruct.toQuiver.{u1, succ u1} Type.{u1} (CategoryTheory.Category.toCategoryStruct.{u1, succ u1} Type.{u1} CategoryTheory.types.{u1})) (CategoryTheory.Functor.toPrefunctor.{u1, u1, succ u1, succ u1} TopCat.{u1} instTopCatLargeCategory.{u1} Type.{u1} CategoryTheory.types.{u1} (CategoryTheory.forget.{succ u1, u1, u1} TopCat.{u1} instTopCatLargeCategory.{u1} TopCat.concreteCategory.{u1})) X Y f))
 Case conversion may be inaccurate. Consider using '#align Top.open_embedding_iff_comp_is_iso TopCat.openEmbedding_iff_comp_isIsoₓ'. -/
 @[simp]
 theorem openEmbedding_iff_comp_isIso {X Y Z : TopCat} (f : X ⟶ Y) (g : Y ⟶ Z) [IsIso g] :
@@ -181,7 +181,7 @@ theorem openEmbedding_iff_comp_isIso {X Y Z : TopCat} (f : X ⟶ Y) (g : Y ⟶ Z
 lean 3 declaration is
   forall {X : TopCat.{u1}} {Y : TopCat.{u1}} {Z : TopCat.{u1}} (f : Quiver.Hom.{succ u1, succ u1} TopCat.{u1} (CategoryTheory.CategoryStruct.toQuiver.{u1, succ u1} TopCat.{u1} (CategoryTheory.Category.toCategoryStruct.{u1, succ u1} TopCat.{u1} TopCat.largeCategory.{u1})) X Y) (g : Quiver.Hom.{succ u1, succ u1} TopCat.{u1} (CategoryTheory.CategoryStruct.toQuiver.{u1, succ u1} TopCat.{u1} (CategoryTheory.Category.toCategoryStruct.{u1, succ u1} TopCat.{u1} TopCat.largeCategory.{u1})) Y Z) [_inst_1 : CategoryTheory.IsIso.{u1, succ u1} TopCat.{u1} TopCat.largeCategory.{u1} X Y f], Iff (OpenEmbedding.{u1, u1} (coeSort.{succ (succ u1), succ (succ u1)} (CategoryTheory.Bundled.{u1, u1} TopologicalSpace.{u1}) Type.{u1} (CategoryTheory.Bundled.hasCoeToSort.{u1, u1} TopologicalSpace.{u1}) X) (coeSort.{succ (succ u1), succ (succ u1)} (CategoryTheory.Bundled.{u1, u1} TopologicalSpace.{u1}) Type.{u1} (CategoryTheory.Bundled.hasCoeToSort.{u1, u1} TopologicalSpace.{u1}) Z) (TopCat.topologicalSpace.{u1} X) (TopCat.topologicalSpace.{u1} Z) (coeFn.{succ u1, succ u1} (Quiver.Hom.{succ u1, succ u1} TopCat.{u1} (CategoryTheory.CategoryStruct.toQuiver.{u1, succ u1} TopCat.{u1} (CategoryTheory.Category.toCategoryStruct.{u1, succ u1} TopCat.{u1} TopCat.largeCategory.{u1})) X Z) (fun (_x : ContinuousMap.{u1, u1} (coeSort.{succ (succ u1), succ (succ u1)} (CategoryTheory.Bundled.{u1, u1} TopologicalSpace.{u1}) Type.{u1} (CategoryTheory.Bundled.hasCoeToSort.{u1, u1} TopologicalSpace.{u1}) X) (coeSort.{succ (succ u1), succ (succ u1)} (CategoryTheory.Bundled.{u1, u1} TopologicalSpace.{u1}) Type.{u1} (CategoryTheory.Bundled.hasCoeToSort.{u1, u1} TopologicalSpace.{u1}) Z) (CategoryTheory.Bundled.str.{u1, u1} TopologicalSpace.{u1} X) (CategoryTheory.Bundled.str.{u1, u1} TopologicalSpace.{u1} Z)) => (coeSort.{succ (succ u1), succ (succ u1)} (CategoryTheory.Bundled.{u1, u1} TopologicalSpace.{u1}) Type.{u1} (CategoryTheory.Bundled.hasCoeToSort.{u1, u1} TopologicalSpace.{u1}) X) -> (coeSort.{succ (succ u1), succ (succ u1)} (CategoryTheory.Bundled.{u1, u1} TopologicalSpace.{u1}) Type.{u1} (CategoryTheory.Bundled.hasCoeToSort.{u1, u1} TopologicalSpace.{u1}) Z)) (ContinuousMap.hasCoeToFun.{u1, u1} (coeSort.{succ (succ u1), succ (succ u1)} (CategoryTheory.Bundled.{u1, u1} TopologicalSpace.{u1}) Type.{u1} (CategoryTheory.Bundled.hasCoeToSort.{u1, u1} TopologicalSpace.{u1}) X) (coeSort.{succ (succ u1), succ (succ u1)} (CategoryTheory.Bundled.{u1, u1} TopologicalSpace.{u1}) Type.{u1} (CategoryTheory.Bundled.hasCoeToSort.{u1, u1} TopologicalSpace.{u1}) Z) (CategoryTheory.Bundled.str.{u1, u1} TopologicalSpace.{u1} X) (CategoryTheory.Bundled.str.{u1, u1} TopologicalSpace.{u1} Z)) (CategoryTheory.CategoryStruct.comp.{u1, succ u1} TopCat.{u1} (CategoryTheory.Category.toCategoryStruct.{u1, succ u1} TopCat.{u1} TopCat.largeCategory.{u1}) X Y Z f g))) (OpenEmbedding.{u1, u1} (coeSort.{succ (succ u1), succ (succ u1)} (CategoryTheory.Bundled.{u1, u1} TopologicalSpace.{u1}) Type.{u1} (CategoryTheory.Bundled.hasCoeToSort.{u1, u1} TopologicalSpace.{u1}) Y) (coeSort.{succ (succ u1), succ (succ u1)} (CategoryTheory.Bundled.{u1, u1} TopologicalSpace.{u1}) Type.{u1} (CategoryTheory.Bundled.hasCoeToSort.{u1, u1} TopologicalSpace.{u1}) Z) (TopCat.topologicalSpace.{u1} Y) (TopCat.topologicalSpace.{u1} Z) (coeFn.{succ u1, succ u1} (Quiver.Hom.{succ u1, succ u1} TopCat.{u1} (CategoryTheory.CategoryStruct.toQuiver.{u1, succ u1} TopCat.{u1} (CategoryTheory.Category.toCategoryStruct.{u1, succ u1} TopCat.{u1} TopCat.largeCategory.{u1})) Y Z) (fun (_x : ContinuousMap.{u1, u1} (coeSort.{succ (succ u1), succ (succ u1)} (CategoryTheory.Bundled.{u1, u1} TopologicalSpace.{u1}) Type.{u1} (CategoryTheory.Bundled.hasCoeToSort.{u1, u1} TopologicalSpace.{u1}) Y) (coeSort.{succ (succ u1), succ (succ u1)} (CategoryTheory.Bundled.{u1, u1} TopologicalSpace.{u1}) Type.{u1} (CategoryTheory.Bundled.hasCoeToSort.{u1, u1} TopologicalSpace.{u1}) Z) (CategoryTheory.Bundled.str.{u1, u1} TopologicalSpace.{u1} Y) (CategoryTheory.Bundled.str.{u1, u1} TopologicalSpace.{u1} Z)) => (coeSort.{succ (succ u1), succ (succ u1)} (CategoryTheory.Bundled.{u1, u1} TopologicalSpace.{u1}) Type.{u1} (CategoryTheory.Bundled.hasCoeToSort.{u1, u1} TopologicalSpace.{u1}) Y) -> (coeSort.{succ (succ u1), succ (succ u1)} (CategoryTheory.Bundled.{u1, u1} TopologicalSpace.{u1}) Type.{u1} (CategoryTheory.Bundled.hasCoeToSort.{u1, u1} TopologicalSpace.{u1}) Z)) (ContinuousMap.hasCoeToFun.{u1, u1} (coeSort.{succ (succ u1), succ (succ u1)} (CategoryTheory.Bundled.{u1, u1} TopologicalSpace.{u1}) Type.{u1} (CategoryTheory.Bundled.hasCoeToSort.{u1, u1} TopologicalSpace.{u1}) Y) (coeSort.{succ (succ u1), succ (succ u1)} (CategoryTheory.Bundled.{u1, u1} TopologicalSpace.{u1}) Type.{u1} (CategoryTheory.Bundled.hasCoeToSort.{u1, u1} TopologicalSpace.{u1}) Z) (CategoryTheory.Bundled.str.{u1, u1} TopologicalSpace.{u1} Y) (CategoryTheory.Bundled.str.{u1, u1} TopologicalSpace.{u1} Z)) g))
 but is expected to have type
-  forall {X : TopCat.{u1}} {Y : TopCat.{u1}} {Z : TopCat.{u1}} (f : Quiver.Hom.{succ u1, succ u1} TopCat.{u1} (CategoryTheory.CategoryStruct.toQuiver.{u1, succ u1} TopCat.{u1} (CategoryTheory.Category.toCategoryStruct.{u1, succ u1} TopCat.{u1} instTopCatLargeCategory.{u1})) X Y) (g : Quiver.Hom.{succ u1, succ u1} TopCat.{u1} (CategoryTheory.CategoryStruct.toQuiver.{u1, succ u1} TopCat.{u1} (CategoryTheory.Category.toCategoryStruct.{u1, succ u1} TopCat.{u1} instTopCatLargeCategory.{u1})) Y Z) [_inst_1 : CategoryTheory.IsIso.{u1, succ u1} TopCat.{u1} instTopCatLargeCategory.{u1} X Y f], Iff (OpenEmbedding.{u1, u1} (Prefunctor.obj.{succ u1, succ u1, succ u1, succ u1} TopCat.{u1} (CategoryTheory.CategoryStruct.toQuiver.{u1, succ u1} TopCat.{u1} (CategoryTheory.Category.toCategoryStruct.{u1, succ u1} TopCat.{u1} instTopCatLargeCategory.{u1})) Type.{u1} (CategoryTheory.CategoryStruct.toQuiver.{u1, succ u1} Type.{u1} (CategoryTheory.Category.toCategoryStruct.{u1, succ u1} Type.{u1} CategoryTheory.types.{u1})) (CategoryTheory.Functor.toPrefunctor.{u1, u1, succ u1, succ u1} TopCat.{u1} instTopCatLargeCategory.{u1} Type.{u1} CategoryTheory.types.{u1} (CategoryTheory.forget.{succ u1, u1, u1} TopCat.{u1} instTopCatLargeCategory.{u1} TopCat.concreteCategory.{u1})) X) (Prefunctor.obj.{succ u1, succ u1, succ u1, succ u1} TopCat.{u1} (CategoryTheory.CategoryStruct.toQuiver.{u1, succ u1} TopCat.{u1} (CategoryTheory.Category.toCategoryStruct.{u1, succ u1} TopCat.{u1} instTopCatLargeCategory.{u1})) Type.{u1} (CategoryTheory.CategoryStruct.toQuiver.{u1, succ u1} Type.{u1} (CategoryTheory.Category.toCategoryStruct.{u1, succ u1} Type.{u1} CategoryTheory.types.{u1})) (CategoryTheory.Functor.toPrefunctor.{u1, u1, succ u1, succ u1} TopCat.{u1} instTopCatLargeCategory.{u1} Type.{u1} CategoryTheory.types.{u1} (CategoryTheory.forget.{succ u1, u1, u1} TopCat.{u1} instTopCatLargeCategory.{u1} TopCat.concreteCategory.{u1})) Z) (TopCat.instTopologicalSpaceObjTopCatToQuiverToCategoryStructInstTopCatLargeCategoryTypeTypesToPrefunctorForgetConcreteCategory.{u1} X) (TopCat.instTopologicalSpaceObjTopCatToQuiverToCategoryStructInstTopCatLargeCategoryTypeTypesToPrefunctorForgetConcreteCategory.{u1} Z) (Prefunctor.map.{succ u1, succ u1, succ u1, succ u1} TopCat.{u1} (CategoryTheory.CategoryStruct.toQuiver.{u1, succ u1} TopCat.{u1} (CategoryTheory.Category.toCategoryStruct.{u1, succ u1} TopCat.{u1} instTopCatLargeCategory.{u1})) Type.{u1} (CategoryTheory.CategoryStruct.toQuiver.{u1, succ u1} Type.{u1} (CategoryTheory.Category.toCategoryStruct.{u1, succ u1} Type.{u1} CategoryTheory.types.{u1})) (CategoryTheory.Functor.toPrefunctor.{u1, u1, succ u1, succ u1} TopCat.{u1} instTopCatLargeCategory.{u1} Type.{u1} CategoryTheory.types.{u1} (CategoryTheory.forget.{succ u1, u1, u1} TopCat.{u1} instTopCatLargeCategory.{u1} TopCat.concreteCategory.{u1})) X Z (CategoryTheory.CategoryStruct.comp.{u1, succ u1} TopCat.{u1} (CategoryTheory.Category.toCategoryStruct.{u1, succ u1} TopCat.{u1} instTopCatLargeCategory.{u1}) X Y Z f g))) (OpenEmbedding.{u1, u1} (Prefunctor.obj.{succ u1, succ u1, succ u1, succ u1} TopCat.{u1} (CategoryTheory.CategoryStruct.toQuiver.{u1, succ u1} TopCat.{u1} (CategoryTheory.Category.toCategoryStruct.{u1, succ u1} TopCat.{u1} instTopCatLargeCategory.{u1})) Type.{u1} (CategoryTheory.CategoryStruct.toQuiver.{u1, succ u1} Type.{u1} (CategoryTheory.Category.toCategoryStruct.{u1, succ u1} Type.{u1} CategoryTheory.types.{u1})) (CategoryTheory.Functor.toPrefunctor.{u1, u1, succ u1, succ u1} TopCat.{u1} instTopCatLargeCategory.{u1} Type.{u1} CategoryTheory.types.{u1} (CategoryTheory.forget.{succ u1, u1, u1} TopCat.{u1} instTopCatLargeCategory.{u1} TopCat.concreteCategory.{u1})) Y) (Prefunctor.obj.{succ u1, succ u1, succ u1, succ u1} TopCat.{u1} (CategoryTheory.CategoryStruct.toQuiver.{u1, succ u1} TopCat.{u1} (CategoryTheory.Category.toCategoryStruct.{u1, succ u1} TopCat.{u1} instTopCatLargeCategory.{u1})) Type.{u1} (CategoryTheory.CategoryStruct.toQuiver.{u1, succ u1} Type.{u1} (CategoryTheory.Category.toCategoryStruct.{u1, succ u1} Type.{u1} CategoryTheory.types.{u1})) (CategoryTheory.Functor.toPrefunctor.{u1, u1, succ u1, succ u1} TopCat.{u1} instTopCatLargeCategory.{u1} Type.{u1} CategoryTheory.types.{u1} (CategoryTheory.forget.{succ u1, u1, u1} TopCat.{u1} instTopCatLargeCategory.{u1} TopCat.concreteCategory.{u1})) Z) (TopCat.instTopologicalSpaceObjTopCatToQuiverToCategoryStructInstTopCatLargeCategoryTypeTypesToPrefunctorForgetConcreteCategory.{u1} Y) (TopCat.instTopologicalSpaceObjTopCatToQuiverToCategoryStructInstTopCatLargeCategoryTypeTypesToPrefunctorForgetConcreteCategory.{u1} Z) (Prefunctor.map.{succ u1, succ u1, succ u1, succ u1} TopCat.{u1} (CategoryTheory.CategoryStruct.toQuiver.{u1, succ u1} TopCat.{u1} (CategoryTheory.Category.toCategoryStruct.{u1, succ u1} TopCat.{u1} instTopCatLargeCategory.{u1})) Type.{u1} (CategoryTheory.CategoryStruct.toQuiver.{u1, succ u1} Type.{u1} (CategoryTheory.Category.toCategoryStruct.{u1, succ u1} Type.{u1} CategoryTheory.types.{u1})) (CategoryTheory.Functor.toPrefunctor.{u1, u1, succ u1, succ u1} TopCat.{u1} instTopCatLargeCategory.{u1} Type.{u1} CategoryTheory.types.{u1} (CategoryTheory.forget.{succ u1, u1, u1} TopCat.{u1} instTopCatLargeCategory.{u1} TopCat.concreteCategory.{u1})) Y Z g))
+  forall {X : TopCat.{u1}} {Y : TopCat.{u1}} {Z : TopCat.{u1}} (f : Quiver.Hom.{succ u1, succ u1} TopCat.{u1} (CategoryTheory.CategoryStruct.toQuiver.{u1, succ u1} TopCat.{u1} (CategoryTheory.Category.toCategoryStruct.{u1, succ u1} TopCat.{u1} instTopCatLargeCategory.{u1})) X Y) (g : Quiver.Hom.{succ u1, succ u1} TopCat.{u1} (CategoryTheory.CategoryStruct.toQuiver.{u1, succ u1} TopCat.{u1} (CategoryTheory.Category.toCategoryStruct.{u1, succ u1} TopCat.{u1} instTopCatLargeCategory.{u1})) Y Z) [_inst_1 : CategoryTheory.IsIso.{u1, succ u1} TopCat.{u1} instTopCatLargeCategory.{u1} X Y f], Iff (OpenEmbedding.{u1, u1} (Prefunctor.obj.{succ u1, succ u1, succ u1, succ u1} TopCat.{u1} (CategoryTheory.CategoryStruct.toQuiver.{u1, succ u1} TopCat.{u1} (CategoryTheory.Category.toCategoryStruct.{u1, succ u1} TopCat.{u1} instTopCatLargeCategory.{u1})) Type.{u1} (CategoryTheory.CategoryStruct.toQuiver.{u1, succ u1} Type.{u1} (CategoryTheory.Category.toCategoryStruct.{u1, succ u1} Type.{u1} CategoryTheory.types.{u1})) (CategoryTheory.Functor.toPrefunctor.{u1, u1, succ u1, succ u1} TopCat.{u1} instTopCatLargeCategory.{u1} Type.{u1} CategoryTheory.types.{u1} (CategoryTheory.forget.{succ u1, u1, u1} TopCat.{u1} instTopCatLargeCategory.{u1} TopCat.concreteCategory.{u1})) X) (Prefunctor.obj.{succ u1, succ u1, succ u1, succ u1} TopCat.{u1} (CategoryTheory.CategoryStruct.toQuiver.{u1, succ u1} TopCat.{u1} (CategoryTheory.Category.toCategoryStruct.{u1, succ u1} TopCat.{u1} instTopCatLargeCategory.{u1})) Type.{u1} (CategoryTheory.CategoryStruct.toQuiver.{u1, succ u1} Type.{u1} (CategoryTheory.Category.toCategoryStruct.{u1, succ u1} Type.{u1} CategoryTheory.types.{u1})) (CategoryTheory.Functor.toPrefunctor.{u1, u1, succ u1, succ u1} TopCat.{u1} instTopCatLargeCategory.{u1} Type.{u1} CategoryTheory.types.{u1} (CategoryTheory.forget.{succ u1, u1, u1} TopCat.{u1} instTopCatLargeCategory.{u1} TopCat.concreteCategory.{u1})) Z) (TopCat.topologicalSpace_forget.{u1} X) (TopCat.topologicalSpace_forget.{u1} Z) (Prefunctor.map.{succ u1, succ u1, succ u1, succ u1} TopCat.{u1} (CategoryTheory.CategoryStruct.toQuiver.{u1, succ u1} TopCat.{u1} (CategoryTheory.Category.toCategoryStruct.{u1, succ u1} TopCat.{u1} instTopCatLargeCategory.{u1})) Type.{u1} (CategoryTheory.CategoryStruct.toQuiver.{u1, succ u1} Type.{u1} (CategoryTheory.Category.toCategoryStruct.{u1, succ u1} Type.{u1} CategoryTheory.types.{u1})) (CategoryTheory.Functor.toPrefunctor.{u1, u1, succ u1, succ u1} TopCat.{u1} instTopCatLargeCategory.{u1} Type.{u1} CategoryTheory.types.{u1} (CategoryTheory.forget.{succ u1, u1, u1} TopCat.{u1} instTopCatLargeCategory.{u1} TopCat.concreteCategory.{u1})) X Z (CategoryTheory.CategoryStruct.comp.{u1, succ u1} TopCat.{u1} (CategoryTheory.Category.toCategoryStruct.{u1, succ u1} TopCat.{u1} instTopCatLargeCategory.{u1}) X Y Z f g))) (OpenEmbedding.{u1, u1} (Prefunctor.obj.{succ u1, succ u1, succ u1, succ u1} TopCat.{u1} (CategoryTheory.CategoryStruct.toQuiver.{u1, succ u1} TopCat.{u1} (CategoryTheory.Category.toCategoryStruct.{u1, succ u1} TopCat.{u1} instTopCatLargeCategory.{u1})) Type.{u1} (CategoryTheory.CategoryStruct.toQuiver.{u1, succ u1} Type.{u1} (CategoryTheory.Category.toCategoryStruct.{u1, succ u1} Type.{u1} CategoryTheory.types.{u1})) (CategoryTheory.Functor.toPrefunctor.{u1, u1, succ u1, succ u1} TopCat.{u1} instTopCatLargeCategory.{u1} Type.{u1} CategoryTheory.types.{u1} (CategoryTheory.forget.{succ u1, u1, u1} TopCat.{u1} instTopCatLargeCategory.{u1} TopCat.concreteCategory.{u1})) Y) (Prefunctor.obj.{succ u1, succ u1, succ u1, succ u1} TopCat.{u1} (CategoryTheory.CategoryStruct.toQuiver.{u1, succ u1} TopCat.{u1} (CategoryTheory.Category.toCategoryStruct.{u1, succ u1} TopCat.{u1} instTopCatLargeCategory.{u1})) Type.{u1} (CategoryTheory.CategoryStruct.toQuiver.{u1, succ u1} Type.{u1} (CategoryTheory.Category.toCategoryStruct.{u1, succ u1} Type.{u1} CategoryTheory.types.{u1})) (CategoryTheory.Functor.toPrefunctor.{u1, u1, succ u1, succ u1} TopCat.{u1} instTopCatLargeCategory.{u1} Type.{u1} CategoryTheory.types.{u1} (CategoryTheory.forget.{succ u1, u1, u1} TopCat.{u1} instTopCatLargeCategory.{u1} TopCat.concreteCategory.{u1})) Z) (TopCat.topologicalSpace_forget.{u1} Y) (TopCat.topologicalSpace_forget.{u1} Z) (Prefunctor.map.{succ u1, succ u1, succ u1, succ u1} TopCat.{u1} (CategoryTheory.CategoryStruct.toQuiver.{u1, succ u1} TopCat.{u1} (CategoryTheory.Category.toCategoryStruct.{u1, succ u1} TopCat.{u1} instTopCatLargeCategory.{u1})) Type.{u1} (CategoryTheory.CategoryStruct.toQuiver.{u1, succ u1} Type.{u1} (CategoryTheory.Category.toCategoryStruct.{u1, succ u1} Type.{u1} CategoryTheory.types.{u1})) (CategoryTheory.Functor.toPrefunctor.{u1, u1, succ u1, succ u1} TopCat.{u1} instTopCatLargeCategory.{u1} Type.{u1} CategoryTheory.types.{u1} (CategoryTheory.forget.{succ u1, u1, u1} TopCat.{u1} instTopCatLargeCategory.{u1} TopCat.concreteCategory.{u1})) Y Z g))
 Case conversion may be inaccurate. Consider using '#align Top.open_embedding_iff_is_iso_comp TopCat.openEmbedding_iff_isIso_compₓ'. -/
 @[simp]
 theorem openEmbedding_iff_isIso_comp {X Y Z : TopCat} (f : X ⟶ Y) (g : Y ⟶ Z) [IsIso f] :

814d76e2

bump to nightly-2023-04-13-02

mathlib commit https://github.com/leanprover-community/mathlib/commit/347636a7a80595d55bedf6e6fbd996a3c39da69a

bd75793a

Diff

@@ -4,7 +4,7 @@ Released under Apache 2.0 license as described in the file LICENSE.
 Authors: Patrick Massot, Scott Morrison, Mario Carneiro
 
 ! This file was ported from Lean 3 source module topology.category.Top.basic
-! leanprover-community/mathlib commit bcfa726826abd57587355b4b5b7e78ad6527b7e4
+! leanprover-community/mathlib commit 814d76e2247d5ba8bc024843552da1278bfe9e5c
 ! Please do not edit these lines, except to modify the commit id
 ! if you have ported upstream changes.
 -/
@@ -15,6 +15,9 @@ import Mathbin.Topology.ContinuousFunction.Basic
 /-!
 # Category instance for topological spaces
 
+> THIS FILE IS SYNCHRONIZED WITH MATHLIB4.
+> Any changes to this file require a corresponding PR to mathlib4.
+
 We introduce the bundled category `Top` of topological spaces together with the functors `discrete`
 and `trivial` from the category of types to `Top` which equip a type with the corresponding
 discrete, resp. trivial, topology. For a proof that these functors are left, resp. right adjoint

bcfa7268

bump to nightly-2023-04-11-12

mathlib commit https://github.com/leanprover-community/mathlib/commit/c9236f47f5b9df573443aa499c0d3968769628b7

46167fe3

Diff

@@ -28,53 +28,76 @@ open TopologicalSpace
 
 universe u
 
+#print TopCat /-
 /-- The category of topological spaces and continuous maps. -/
 def TopCat : Type (u + 1) :=
   Bundled TopologicalSpace
 #align Top TopCat
+-/
 
 namespace TopCat
 
+#print TopCat.bundledHom /-
 instance bundledHom : BundledHom @ContinuousMap :=
   ⟨@ContinuousMap.toFun, @ContinuousMap.id, @ContinuousMap.comp, @ContinuousMap.coe_injective⟩
 #align Top.bundled_hom TopCat.bundledHom
+-/
 
 deriving instance LargeCategory, ConcreteCategory for TopCat
 
 instance : CoeSort TopCat (Type _) :=
   Bundled.hasCoeToSort
 
+#print TopCat.topologicalSpaceUnbundled /-
 instance topologicalSpaceUnbundled (x : TopCat) : TopologicalSpace x :=
   x.str
 #align Top.topological_space_unbundled TopCat.topologicalSpaceUnbundled
+-/
 
+/- warning: Top.id_app -> TopCat.id_app is a dubious translation:
+lean 3 declaration is
+  forall (X : TopCat.{u1}) (x : coeSort.{succ (succ u1), succ (succ u1)} TopCat.{u1} Type.{u1} TopCat.hasCoeToSort.{u1} X), Eq.{succ u1} (coeSort.{succ (succ u1), succ (succ u1)} (CategoryTheory.Bundled.{u1, u1} TopologicalSpace.{u1}) Type.{u1} (CategoryTheory.Bundled.hasCoeToSort.{u1, u1} TopologicalSpace.{u1}) X) (coeFn.{succ u1, succ u1} (Quiver.Hom.{succ u1, succ u1} TopCat.{u1} (CategoryTheory.CategoryStruct.toQuiver.{u1, succ u1} TopCat.{u1} (CategoryTheory.Category.toCategoryStruct.{u1, succ u1} TopCat.{u1} TopCat.largeCategory.{u1})) X X) (fun (_x : ContinuousMap.{u1, u1} (coeSort.{succ (succ u1), succ (succ u1)} (CategoryTheory.Bundled.{u1, u1} TopologicalSpace.{u1}) Type.{u1} (CategoryTheory.Bundled.hasCoeToSort.{u1, u1} TopologicalSpace.{u1}) X) (coeSort.{succ (succ u1), succ (succ u1)} (CategoryTheory.Bundled.{u1, u1} TopologicalSpace.{u1}) Type.{u1} (CategoryTheory.Bundled.hasCoeToSort.{u1, u1} TopologicalSpace.{u1}) X) (CategoryTheory.Bundled.str.{u1, u1} TopologicalSpace.{u1} X) (CategoryTheory.Bundled.str.{u1, u1} TopologicalSpace.{u1} X)) => (coeSort.{succ (succ u1), succ (succ u1)} (CategoryTheory.Bundled.{u1, u1} TopologicalSpace.{u1}) Type.{u1} (CategoryTheory.Bundled.hasCoeToSort.{u1, u1} TopologicalSpace.{u1}) X) -> (coeSort.{succ (succ u1), succ (succ u1)} (CategoryTheory.Bundled.{u1, u1} TopologicalSpace.{u1}) Type.{u1} (CategoryTheory.Bundled.hasCoeToSort.{u1, u1} TopologicalSpace.{u1}) X)) (ContinuousMap.hasCoeToFun.{u1, u1} (coeSort.{succ (succ u1), succ (succ u1)} (CategoryTheory.Bundled.{u1, u1} TopologicalSpace.{u1}) Type.{u1} (CategoryTheory.Bundled.hasCoeToSort.{u1, u1} TopologicalSpace.{u1}) X) (coeSort.{succ (succ u1), succ (succ u1)} (CategoryTheory.Bundled.{u1, u1} TopologicalSpace.{u1}) Type.{u1} (CategoryTheory.Bundled.hasCoeToSort.{u1, u1} TopologicalSpace.{u1}) X) (CategoryTheory.Bundled.str.{u1, u1} TopologicalSpace.{u1} X) (CategoryTheory.Bundled.str.{u1, u1} TopologicalSpace.{u1} X)) (CategoryTheory.CategoryStruct.id.{u1, succ u1} TopCat.{u1} (CategoryTheory.Category.toCategoryStruct.{u1, succ u1} TopCat.{u1} TopCat.largeCategory.{u1}) X) x) x
+but is expected to have type
+  forall (X : TopCat.{u1}) (x : CategoryTheory.Bundled.α.{u1, u1} TopologicalSpace.{u1} X), Eq.{succ u1} (Prefunctor.obj.{succ u1, succ u1, succ u1, succ u1} TopCat.{u1} (CategoryTheory.CategoryStruct.toQuiver.{u1, succ u1} TopCat.{u1} (CategoryTheory.Category.toCategoryStruct.{u1, succ u1} TopCat.{u1} instTopCatLargeCategory.{u1})) Type.{u1} (CategoryTheory.CategoryStruct.toQuiver.{u1, succ u1} Type.{u1} (CategoryTheory.Category.toCategoryStruct.{u1, succ u1} Type.{u1} CategoryTheory.types.{u1})) (CategoryTheory.Functor.toPrefunctor.{u1, u1, succ u1, succ u1} TopCat.{u1} instTopCatLargeCategory.{u1} Type.{u1} CategoryTheory.types.{u1} (CategoryTheory.forget.{succ u1, u1, u1} TopCat.{u1} instTopCatLargeCategory.{u1} TopCat.concreteCategory.{u1})) X) (Prefunctor.map.{succ u1, succ u1, succ u1, succ u1} TopCat.{u1} (CategoryTheory.CategoryStruct.toQuiver.{u1, succ u1} TopCat.{u1} (CategoryTheory.Category.toCategoryStruct.{u1, succ u1} TopCat.{u1} instTopCatLargeCategory.{u1})) Type.{u1} (CategoryTheory.CategoryStruct.toQuiver.{u1, succ u1} Type.{u1} (CategoryTheory.Category.toCategoryStruct.{u1, succ u1} Type.{u1} CategoryTheory.types.{u1})) (CategoryTheory.Functor.toPrefunctor.{u1, u1, succ u1, succ u1} TopCat.{u1} instTopCatLargeCategory.{u1} Type.{u1} CategoryTheory.types.{u1} (CategoryTheory.forget.{succ u1, u1, u1} TopCat.{u1} instTopCatLargeCategory.{u1} TopCat.concreteCategory.{u1})) X X (CategoryTheory.CategoryStruct.id.{u1, succ u1} TopCat.{u1} (CategoryTheory.Category.toCategoryStruct.{u1, succ u1} TopCat.{u1} instTopCatLargeCategory.{u1}) X) x) x
+Case conversion may be inaccurate. Consider using '#align Top.id_app TopCat.id_appₓ'. -/
 @[simp]
 theorem id_app (X : TopCat.{u}) (x : X) : (𝟙 X : X → X) x = x :=
   rfl
 #align Top.id_app TopCat.id_app
 
+/- warning: Top.comp_app -> TopCat.comp_app is a dubious translation:
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+Case conversion may be inaccurate. Consider using '#align Top.comp_app TopCat.comp_appₓ'. -/
 @[simp]
 theorem comp_app {X Y Z : TopCat.{u}} (f : X ⟶ Y) (g : Y ⟶ Z) (x : X) :
     (f ≫ g : X → Z) x = g (f x) :=
   rfl
 #align Top.comp_app TopCat.comp_app
 
+#print TopCat.of /-
 /-- Construct a bundled `Top` from the underlying type and the typeclass. -/
 def of (X : Type u) [TopologicalSpace X] : TopCat :=
   ⟨X⟩
 #align Top.of TopCat.of
+-/
 
 instance (X : TopCat) : TopologicalSpace X :=
   X.str
 
+#print TopCat.coe_of /-
 @[simp]
 theorem coe_of (X : Type u) [TopologicalSpace X] : (of X : Type u) = X :=
   rfl
 #align Top.coe_of TopCat.coe_of
+-/
 
 instance : Inhabited TopCat :=
   ⟨TopCat.of Empty⟩
 
+#print TopCat.discrete /-
 /-- The discrete topology on any type. -/
 def discrete : Type u ⥤ TopCat.{u} where
   obj X := ⟨X, ⊥⟩
@@ -82,10 +105,12 @@ def discrete : Type u ⥤ TopCat.{u} where
     { toFun := f
       continuous_toFun := continuous_bot }
 #align Top.discrete TopCat.discrete
+-/
 
 instance {X : Type u} : DiscreteTopology (discrete.obj X) :=
   ⟨rfl⟩
 
+#print TopCat.trivial /-
 /-- The trivial topology on any type. -/
 def trivial : Type u ⥤ TopCat.{u} where
   obj X := ⟨X, ⊤⟩
@@ -93,7 +118,9 @@ def trivial : Type u ⥤ TopCat.{u} where
     { toFun := f
       continuous_toFun := continuous_top }
 #align Top.trivial TopCat.trivial
+-/
 
+#print TopCat.isoOfHomeo /-
 /-- Any homeomorphisms induces an isomorphism in `Top`. -/
 @[simps]
 def isoOfHomeo {X Y : TopCat.{u}} (f : X ≃ₜ Y) : X ≅ Y
@@ -101,7 +128,9 @@ def isoOfHomeo {X Y : TopCat.{u}} (f : X ≃ₜ Y) : X ≅ Y
   Hom := ⟨f⟩
   inv := ⟨f.symm⟩
 #align Top.iso_of_homeo TopCat.isoOfHomeo
+-/
 
+#print TopCat.homeoOfIso /-
 /-- Any isomorphism in `Top` induces a homeomorphism. -/
 @[simps]
 def homeoOfIso {X Y : TopCat.{u}} (f : X ≅ Y) : X ≃ₜ Y
@@ -113,27 +142,44 @@ def homeoOfIso {X Y : TopCat.{u}} (f : X ≅ Y) : X ≃ₜ Y
   continuous_toFun := f.Hom.Continuous
   continuous_invFun := f.inv.Continuous
 #align Top.homeo_of_iso TopCat.homeoOfIso
+-/
 
+#print TopCat.of_isoOfHomeo /-
 @[simp]
 theorem of_isoOfHomeo {X Y : TopCat.{u}} (f : X ≃ₜ Y) : homeoOfIso (isoOfHomeo f) = f :=
   by
   ext
   rfl
 #align Top.of_iso_of_homeo TopCat.of_isoOfHomeo
+-/
 
+#print TopCat.of_homeoOfIso /-
 @[simp]
 theorem of_homeoOfIso {X Y : TopCat.{u}} (f : X ≅ Y) : isoOfHomeo (homeoOfIso f) = f :=
   by
   ext
   rfl
 #align Top.of_homeo_of_iso TopCat.of_homeoOfIso
+-/
 
+/- warning: Top.open_embedding_iff_comp_is_iso -> TopCat.openEmbedding_iff_comp_isIso is a dubious translation:
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(CategoryTheory.CategoryStruct.toQuiver.{u1, succ u1} Type.{u1} (CategoryTheory.Category.toCategoryStruct.{u1, succ u1} Type.{u1} CategoryTheory.types.{u1})) (CategoryTheory.Functor.toPrefunctor.{u1, u1, succ u1, succ u1} TopCat.{u1} instTopCatLargeCategory.{u1} Type.{u1} CategoryTheory.types.{u1} (CategoryTheory.forget.{succ u1, u1, u1} TopCat.{u1} instTopCatLargeCategory.{u1} TopCat.concreteCategory.{u1})) X Y f))
+Case conversion may be inaccurate. Consider using '#align Top.open_embedding_iff_comp_is_iso TopCat.openEmbedding_iff_comp_isIsoₓ'. -/
 @[simp]
 theorem openEmbedding_iff_comp_isIso {X Y Z : TopCat} (f : X ⟶ Y) (g : Y ⟶ Z) [IsIso g] :
     OpenEmbedding (f ≫ g) ↔ OpenEmbedding f :=
   (TopCat.homeoOfIso (asIso g)).OpenEmbedding.of_comp_iff f
 #align Top.open_embedding_iff_comp_is_iso TopCat.openEmbedding_iff_comp_isIso
 
+/- warning: Top.open_embedding_iff_is_iso_comp -> TopCat.openEmbedding_iff_isIso_comp is a dubious translation:
+lean 3 declaration is
+  forall {X : TopCat.{u1}} {Y : TopCat.{u1}} {Z : TopCat.{u1}} (f : Quiver.Hom.{succ u1, succ u1} TopCat.{u1} (CategoryTheory.CategoryStruct.toQuiver.{u1, succ u1} TopCat.{u1} (CategoryTheory.Category.toCategoryStruct.{u1, succ u1} TopCat.{u1} TopCat.largeCategory.{u1})) X Y) (g : Quiver.Hom.{succ u1, succ u1} TopCat.{u1} (CategoryTheory.CategoryStruct.toQuiver.{u1, succ u1} TopCat.{u1} (CategoryTheory.Category.toCategoryStruct.{u1, succ u1} TopCat.{u1} TopCat.largeCategory.{u1})) Y Z) [_inst_1 : CategoryTheory.IsIso.{u1, succ u1} TopCat.{u1} TopCat.largeCategory.{u1} X Y f], Iff (OpenEmbedding.{u1, u1} (coeSort.{succ (succ u1), succ (succ u1)} (CategoryTheory.Bundled.{u1, u1} TopologicalSpace.{u1}) Type.{u1} (CategoryTheory.Bundled.hasCoeToSort.{u1, u1} TopologicalSpace.{u1}) X) (coeSort.{succ (succ u1), succ (succ u1)} (CategoryTheory.Bundled.{u1, u1} TopologicalSpace.{u1}) Type.{u1} (CategoryTheory.Bundled.hasCoeToSort.{u1, u1} TopologicalSpace.{u1}) Z) (TopCat.topologicalSpace.{u1} X) (TopCat.topologicalSpace.{u1} Z) (coeFn.{succ u1, succ u1} (Quiver.Hom.{succ u1, succ u1} TopCat.{u1} (CategoryTheory.CategoryStruct.toQuiver.{u1, succ u1} TopCat.{u1} (CategoryTheory.Category.toCategoryStruct.{u1, succ u1} TopCat.{u1} TopCat.largeCategory.{u1})) X Z) (fun (_x : ContinuousMap.{u1, u1} (coeSort.{succ (succ u1), succ (succ u1)} (CategoryTheory.Bundled.{u1, u1} TopologicalSpace.{u1}) Type.{u1} (CategoryTheory.Bundled.hasCoeToSort.{u1, u1} TopologicalSpace.{u1}) X) (coeSort.{succ (succ u1), succ (succ u1)} (CategoryTheory.Bundled.{u1, u1} TopologicalSpace.{u1}) Type.{u1} (CategoryTheory.Bundled.hasCoeToSort.{u1, u1} TopologicalSpace.{u1}) Z) (CategoryTheory.Bundled.str.{u1, u1} TopologicalSpace.{u1} X) (CategoryTheory.Bundled.str.{u1, u1} TopologicalSpace.{u1} Z)) => (coeSort.{succ (succ u1), succ (succ u1)} (CategoryTheory.Bundled.{u1, u1} TopologicalSpace.{u1}) Type.{u1} (CategoryTheory.Bundled.hasCoeToSort.{u1, u1} TopologicalSpace.{u1}) X) -> (coeSort.{succ (succ u1), succ (succ u1)} (CategoryTheory.Bundled.{u1, u1} TopologicalSpace.{u1}) Type.{u1} (CategoryTheory.Bundled.hasCoeToSort.{u1, u1} TopologicalSpace.{u1}) Z)) (ContinuousMap.hasCoeToFun.{u1, u1} (coeSort.{succ (succ u1), succ (succ u1)} (CategoryTheory.Bundled.{u1, u1} TopologicalSpace.{u1}) Type.{u1} (CategoryTheory.Bundled.hasCoeToSort.{u1, u1} TopologicalSpace.{u1}) X) (coeSort.{succ (succ u1), succ (succ u1)} (CategoryTheory.Bundled.{u1, u1} TopologicalSpace.{u1}) Type.{u1} (CategoryTheory.Bundled.hasCoeToSort.{u1, u1} TopologicalSpace.{u1}) Z) (CategoryTheory.Bundled.str.{u1, u1} TopologicalSpace.{u1} X) (CategoryTheory.Bundled.str.{u1, u1} TopologicalSpace.{u1} Z)) (CategoryTheory.CategoryStruct.comp.{u1, succ u1} TopCat.{u1} (CategoryTheory.Category.toCategoryStruct.{u1, succ u1} TopCat.{u1} TopCat.largeCategory.{u1}) X Y Z f g))) (OpenEmbedding.{u1, u1} (coeSort.{succ (succ u1), succ (succ u1)} (CategoryTheory.Bundled.{u1, u1} TopologicalSpace.{u1}) Type.{u1} (CategoryTheory.Bundled.hasCoeToSort.{u1, u1} TopologicalSpace.{u1}) Y) (coeSort.{succ (succ u1), succ (succ u1)} (CategoryTheory.Bundled.{u1, u1} TopologicalSpace.{u1}) Type.{u1} (CategoryTheory.Bundled.hasCoeToSort.{u1, u1} TopologicalSpace.{u1}) Z) (TopCat.topologicalSpace.{u1} Y) (TopCat.topologicalSpace.{u1} Z) (coeFn.{succ u1, succ u1} (Quiver.Hom.{succ u1, succ u1} TopCat.{u1} (CategoryTheory.CategoryStruct.toQuiver.{u1, succ u1} TopCat.{u1} (CategoryTheory.Category.toCategoryStruct.{u1, succ u1} TopCat.{u1} TopCat.largeCategory.{u1})) Y Z) (fun (_x : ContinuousMap.{u1, u1} (coeSort.{succ (succ u1), succ (succ u1)} (CategoryTheory.Bundled.{u1, u1} TopologicalSpace.{u1}) Type.{u1} (CategoryTheory.Bundled.hasCoeToSort.{u1, u1} TopologicalSpace.{u1}) Y) (coeSort.{succ (succ u1), succ (succ u1)} (CategoryTheory.Bundled.{u1, u1} TopologicalSpace.{u1}) Type.{u1} (CategoryTheory.Bundled.hasCoeToSort.{u1, u1} TopologicalSpace.{u1}) Z) (CategoryTheory.Bundled.str.{u1, u1} TopologicalSpace.{u1} Y) (CategoryTheory.Bundled.str.{u1, u1} TopologicalSpace.{u1} Z)) => (coeSort.{succ (succ u1), succ (succ u1)} (CategoryTheory.Bundled.{u1, u1} TopologicalSpace.{u1}) Type.{u1} (CategoryTheory.Bundled.hasCoeToSort.{u1, u1} TopologicalSpace.{u1}) Y) -> (coeSort.{succ (succ u1), succ (succ u1)} (CategoryTheory.Bundled.{u1, u1} TopologicalSpace.{u1}) Type.{u1} (CategoryTheory.Bundled.hasCoeToSort.{u1, u1} TopologicalSpace.{u1}) Z)) (ContinuousMap.hasCoeToFun.{u1, u1} (coeSort.{succ (succ u1), succ (succ u1)} (CategoryTheory.Bundled.{u1, u1} TopologicalSpace.{u1}) Type.{u1} (CategoryTheory.Bundled.hasCoeToSort.{u1, u1} TopologicalSpace.{u1}) Y) (coeSort.{succ (succ u1), succ (succ u1)} (CategoryTheory.Bundled.{u1, u1} TopologicalSpace.{u1}) Type.{u1} (CategoryTheory.Bundled.hasCoeToSort.{u1, u1} TopologicalSpace.{u1}) Z) (CategoryTheory.Bundled.str.{u1, u1} TopologicalSpace.{u1} Y) (CategoryTheory.Bundled.str.{u1, u1} TopologicalSpace.{u1} Z)) g))
+but is expected to have type
+  forall {X : TopCat.{u1}} {Y : TopCat.{u1}} {Z : TopCat.{u1}} (f : Quiver.Hom.{succ u1, succ u1} TopCat.{u1} (CategoryTheory.CategoryStruct.toQuiver.{u1, succ u1} TopCat.{u1} (CategoryTheory.Category.toCategoryStruct.{u1, succ u1} TopCat.{u1} instTopCatLargeCategory.{u1})) X Y) (g : Quiver.Hom.{succ u1, succ u1} TopCat.{u1} (CategoryTheory.CategoryStruct.toQuiver.{u1, succ u1} TopCat.{u1} (CategoryTheory.Category.toCategoryStruct.{u1, succ u1} TopCat.{u1} instTopCatLargeCategory.{u1})) Y Z) [_inst_1 : CategoryTheory.IsIso.{u1, succ u1} TopCat.{u1} instTopCatLargeCategory.{u1} X Y f], Iff (OpenEmbedding.{u1, u1} (Prefunctor.obj.{succ u1, succ u1, succ u1, succ u1} TopCat.{u1} (CategoryTheory.CategoryStruct.toQuiver.{u1, succ u1} TopCat.{u1} (CategoryTheory.Category.toCategoryStruct.{u1, succ u1} TopCat.{u1} instTopCatLargeCategory.{u1})) Type.{u1} (CategoryTheory.CategoryStruct.toQuiver.{u1, succ u1} Type.{u1} (CategoryTheory.Category.toCategoryStruct.{u1, succ u1} Type.{u1} 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(CategoryTheory.Category.toCategoryStruct.{u1, succ u1} TopCat.{u1} instTopCatLargeCategory.{u1}) X Y Z f g))) (OpenEmbedding.{u1, u1} (Prefunctor.obj.{succ u1, succ u1, succ u1, succ u1} TopCat.{u1} (CategoryTheory.CategoryStruct.toQuiver.{u1, succ u1} TopCat.{u1} (CategoryTheory.Category.toCategoryStruct.{u1, succ u1} TopCat.{u1} instTopCatLargeCategory.{u1})) Type.{u1} (CategoryTheory.CategoryStruct.toQuiver.{u1, succ u1} Type.{u1} (CategoryTheory.Category.toCategoryStruct.{u1, succ u1} Type.{u1} CategoryTheory.types.{u1})) (CategoryTheory.Functor.toPrefunctor.{u1, u1, succ u1, succ u1} TopCat.{u1} instTopCatLargeCategory.{u1} Type.{u1} CategoryTheory.types.{u1} (CategoryTheory.forget.{succ u1, u1, u1} TopCat.{u1} instTopCatLargeCategory.{u1} TopCat.concreteCategory.{u1})) Y) (Prefunctor.obj.{succ u1, succ u1, succ u1, succ u1} TopCat.{u1} (CategoryTheory.CategoryStruct.toQuiver.{u1, succ u1} TopCat.{u1} (CategoryTheory.Category.toCategoryStruct.{u1, succ u1} TopCat.{u1} 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(CategoryTheory.CategoryStruct.toQuiver.{u1, succ u1} Type.{u1} (CategoryTheory.Category.toCategoryStruct.{u1, succ u1} Type.{u1} CategoryTheory.types.{u1})) (CategoryTheory.Functor.toPrefunctor.{u1, u1, succ u1, succ u1} TopCat.{u1} instTopCatLargeCategory.{u1} Type.{u1} CategoryTheory.types.{u1} (CategoryTheory.forget.{succ u1, u1, u1} TopCat.{u1} instTopCatLargeCategory.{u1} TopCat.concreteCategory.{u1})) Y Z g))
+Case conversion may be inaccurate. Consider using '#align Top.open_embedding_iff_is_iso_comp TopCat.openEmbedding_iff_isIso_compₓ'. -/
 @[simp]
 theorem openEmbedding_iff_isIso_comp {X Y Z : TopCat} (f : X ⟶ Y) (g : Y ⟶ Z) [IsIso f] :
     OpenEmbedding (f ≫ g) ↔ OpenEmbedding g :=

bcfa7268

bump to nightly-2023-02-21-16

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

1107b979

Changes in mathlib4

mathlib3

mathlib4

bcfa7268

style: homogenise porting notes (#11145)

Homogenises porting notes via capitalisation and addition of whitespace.

It makes the following changes:

converts "--porting note" into "-- Porting note";
converts "porting note" into "Porting note".

8be0b69c

Diff

@@ -34,7 +34,7 @@ set_option linter.uppercaseLean3 false in
 
 namespace TopCat
 
--- porting note: had to add in the last two proofs
+-- Porting note: had to add in the last two proofs
 instance bundledHom : BundledHom @ContinuousMap :=
   ⟨@ContinuousMap.toFun, @ContinuousMap.id, @ContinuousMap.comp, @ContinuousMap.coe_injective,
     fun _ => rfl, fun _ _ _ _ _ => rfl⟩
@@ -97,7 +97,7 @@ set_option linter.uppercaseLean3 false in
 instance inhabited : Inhabited TopCat :=
   ⟨TopCat.of Empty⟩
 
--- porting note: added to ease the port of `AlgebraicTopology.TopologicalSimplex`
+-- Porting note: added to ease the port of `AlgebraicTopology.TopologicalSimplex`
 lemma hom_apply {X Y : TopCat} (f : X ⟶ Y) (x : X) : f x = ContinuousMap.toFun f x := rfl
 
 /-- The discrete topology on any type. -/

bcfa7268

chore: classify simp can do this porting notes (#10619)

Classify by adding issue number (#10618) to porting notes claiming anything semantically equivalent to simp can prove this or simp can simplify this.

de765f60

Diff

@@ -63,12 +63,12 @@ attribute [instance] ConcreteCategory.instFunLike in
 instance (X Y : TopCat.{u}) : CoeFun (X ⟶ Y) fun _ => X → Y where
   coe f := f
 
--- Porting note: simp can prove this; removed simp
+-- Porting note (#10618): simp can prove this; removed simp
 theorem id_app (X : TopCat.{u}) (x : ↑X) : (𝟙 X : X ⟶ X) x = x := rfl
 set_option linter.uppercaseLean3 false in
 #align Top.id_app TopCat.id_app
 
--- Porting note: simp can prove this; removed simp
+-- Porting note (#10618): simp can prove this; removed simp
 theorem comp_app {X Y Z : TopCat.{u}} (f : X ⟶ Y) (g : Y ⟶ Z) (x : X) :
     (f ≫ g : X → Z) x = g (f x) := rfl
 set_option linter.uppercaseLean3 false in

bcfa7268

doc(Topology.Category.TopCat.Basic): fix links (#10242)

The trivial link was linking to Init.Core and topology.category.TopCat.adjunctions is from Lean 3 and not valid anymore in Lean 4.

ded9c66f

Diff

@@ -13,9 +13,9 @@ import Mathlib.Topology.ContinuousFunction.Basic
 # Category instance for topological spaces
 
 We introduce the bundled category `TopCat` of topological spaces together with the functors
-`discrete` and `trivial` from the category of types to `TopCat` which equip a type with the
-corresponding discrete, resp. trivial, topology. For a proof that these functors are left,
-resp. right adjoint to the forgetful functor, see `topology.category.TopCat.adjunctions`.
+`TopCat.discrete` and `TopCat.trivial` from the category of types to `TopCat` which equip a type
+with the corresponding discrete, resp. trivial, topology. For a proof that these functors are left,
+resp. right adjoint to the forgetful functor, see `Mathlib.Topology.Category.TopCat.Adjunctions`.
 -/

bcfa7268

refactor(*): abbreviation for non-dependent FunLike (#9833)

This follows up from #9785, which renamed FunLike to DFunLike, by introducing a new abbreviation FunLike F α β := DFunLike F α (fun _ => β), to make the non-dependent use of FunLike easier.

I searched for the pattern DFunLike.*fun and DFunLike.*λ in all files to replace expressions of the form DFunLike F α (fun _ => β) with FunLike F α β. I did this everywhere except for extends clauses for two reasons: it would conflict with #8386, and more importantly extends must directly refer to a structure with no unfolding of defs or abbrevs.

54792e9e

Diff

@@ -59,7 +59,7 @@ set_option linter.uppercaseLean3 false in
 #align Top.topological_space_unbundled TopCat.topologicalSpaceUnbundled
 
 -- Porting note: cannot find a coercion to function otherwise
-attribute [instance] ConcreteCategory.instDFunLike in
+attribute [instance] ConcreteCategory.instFunLike in
 instance (X Y : TopCat.{u}) : CoeFun (X ⟶ Y) fun _ => X → Y where
   coe f := f

bcfa7268

chore(*): rename FunLike to DFunLike (#9785)

This prepares for the introduction of a non-dependent synonym of FunLike, which helps a lot with keeping #8386 readable.

This is entirely search-and-replace in 680197f combined with manual fixes in 4145626, e900597 and b8428f8. The commands that generated this change:

sed -i 's/\bFunLike\b/DFunLike/g' {Archive,Counterexamples,Mathlib,test}/**/*.lean
sed -i 's/\btoFunLike\b/toDFunLike/g' {Archive,Counterexamples,Mathlib,test}/**/*.lean
sed -i 's/import Mathlib.Data.DFunLike/import Mathlib.Data.FunLike/g' {Archive,Counterexamples,Mathlib,test}/**/*.lean
sed -i 's/\bHom_FunLike\b/Hom_DFunLike/g' {Archive,Counterexamples,Mathlib,test}/**/*.lean     
sed -i 's/\binstFunLike\b/instDFunLike/g' {Archive,Counterexamples,Mathlib,test}/**/*.lean
sed -i 's/\bfunLike\b/instDFunLike/g' {Archive,Counterexamples,Mathlib,test}/**/*.lean
sed -i 's/\btoo many metavariables to apply `fun_like.has_coe_to_fun`/too many metavariables to apply `DFunLike.hasCoeToFun`/g' {Archive,Counterexamples,Mathlib,test}/**/*.lean

Co-authored-by: Anne Baanen <Vierkantor@users.noreply.github.com>

82656743

Diff

@@ -59,7 +59,7 @@ set_option linter.uppercaseLean3 false in
 #align Top.topological_space_unbundled TopCat.topologicalSpaceUnbundled
 
 -- Porting note: cannot find a coercion to function otherwise
-attribute [instance] ConcreteCategory.funLike in
+attribute [instance] ConcreteCategory.instDFunLike in
 instance (X Y : TopCat.{u}) : CoeFun (X ⟶ Y) fun _ => X → Y where
   coe f := f

bcfa7268

chore: space after ← (#8178)

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

5fb9beab

Diff

@@ -168,7 +168,7 @@ set_option linter.uppercaseLean3 false in
 @[simp]
 theorem openEmbedding_iff_comp_isIso' {X Y Z : TopCat} (f : X ⟶ Y) (g : Y ⟶ Z) [IsIso g] :
     OpenEmbedding ((forget TopCat).map f ≫ (forget TopCat).map g) ↔ OpenEmbedding f := by
-  simp only [←Functor.map_comp]
+  simp only [← Functor.map_comp]
   exact openEmbedding_iff_comp_isIso f g
 
 -- Porting note: simpNF requested partially simped version below
@@ -185,7 +185,7 @@ set_option linter.uppercaseLean3 false in
 @[simp]
 theorem openEmbedding_iff_isIso_comp' {X Y Z : TopCat} (f : X ⟶ Y) (g : Y ⟶ Z) [IsIso f] :
     OpenEmbedding ((forget TopCat).map f ≫ (forget TopCat).map g) ↔ OpenEmbedding g := by
-  simp only [←Functor.map_comp]
+  simp only [← Functor.map_comp]
   exact openEmbedding_iff_isIso_comp f g
 
 end TopCat

bcfa7268

feat: structure sheaf of a manifold (#7332)

In https://github.com/leanprover-community/mathlib/pull/19146, we defined StructureGroupoid.LocalInvariantProp.sheaf, the sheaf-of-types of functions f : M → M' (for charted spaces M, M') satisfying some local property in the sense of StructureGroupoid.LocalInvariantProp (for example continuity, differentiability, smoothness).

In this PR, in the case of smoothness, we upgrade this to a sheaf of groups if M' is a Lie group, a sheaf of abelian groups if M' is an abelian Lie group, and a sheaf of rings if M' is a "smooth ring".

Co-authored-by: Adam Topaz <github@adamtopaz.com>

Co-authored-by: Floris van Doorn <fpvdoorn@gmail.com>

4f086f94

Diff

@@ -26,6 +26,7 @@ open TopologicalSpace
 universe u
 
 /-- The category of topological spaces and continuous maps. -/
+@[to_additive existing TopCat]
 def TopCat : Type (u + 1) :=
   Bundled TopologicalSpace
 set_option linter.uppercaseLean3 false in
@@ -48,7 +49,8 @@ instance concreteCategory : ConcreteCategory TopCat := by
   dsimp [TopCat]
   infer_instance
 
-instance : CoeSort TopCat (Type*) :=
+@[to_additive existing TopCat.instCoeSortTopCatType]
+instance instCoeSortTopCatType : CoeSort TopCat (Type*) :=
   Bundled.coeSort
 
 instance topologicalSpaceUnbundled (x : TopCat) : TopologicalSpace x :=

bcfa7268

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

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

0c7d6fa5

Diff

@@ -96,8 +96,7 @@ instance inhabited : Inhabited TopCat :=
   ⟨TopCat.of Empty⟩
 
 -- porting note: added to ease the port of `AlgebraicTopology.TopologicalSimplex`
-lemma hom_apply {X Y : TopCat} (f : X ⟶ Y) (x : X) :
-  f x = ContinuousMap.toFun f x := rfl
+lemma hom_apply {X Y : TopCat} (f : X ⟶ Y) (x : X) : f x = ContinuousMap.toFun f x := rfl
 
 /-- The discrete topology on any type. -/
 def discrete : Type u ⥤ TopCat.{u} where

bcfa7268

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

@@ -48,7 +48,7 @@ instance concreteCategory : ConcreteCategory TopCat := by
   dsimp [TopCat]
   infer_instance
 
-instance : CoeSort TopCat (Type _) :=
+instance : CoeSort TopCat (Type*) :=
   Bundled.coeSort
 
 instance topologicalSpaceUnbundled (x : TopCat) : TopologicalSpace x :=

bcfa7268

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) 2017 Scott Morrison. All rights reserved.
 Released under Apache 2.0 license as described in the file LICENSE.
 Authors: Patrick Massot, Scott Morrison, Mario Carneiro
-
-! This file was ported from Lean 3 source module topology.category.Top.basic
-! leanprover-community/mathlib commit bcfa726826abd57587355b4b5b7e78ad6527b7e4
-! Please do not edit these lines, except to modify the commit id
-! if you have ported upstream changes.
 -/
 import Mathlib.CategoryTheory.ConcreteCategory.BundledHom
 import Mathlib.CategoryTheory.Elementwise
 import Mathlib.Topology.ContinuousFunction.Basic
 
+#align_import topology.category.Top.basic from "leanprover-community/mathlib"@"bcfa726826abd57587355b4b5b7e78ad6527b7e4"
+
 /-!
 # Category instance for topological spaces

bcfa7268

feat: port Order.Category.HeytAlgCat (#5021)

Co-authored-by: Yaël Dillies <yael.dillies@gmail.com>

fc5d0810

Diff

@@ -46,6 +46,7 @@ set_option linter.uppercaseLean3 false in
 deriving instance LargeCategory for TopCat
 
 -- Porting note: currently no derive handler for ConcreteCategory
+-- see https://github.com/leanprover-community/mathlib4/issues/5020
 instance concreteCategory : ConcreteCategory TopCat := by
   dsimp [TopCat]
   infer_instance

bcfa7268

feat: change ConcreteCategory.hasCoeToFun to FunLike (#4693)

b7cba33a

Diff

@@ -59,7 +59,7 @@ set_option linter.uppercaseLean3 false in
 #align Top.topological_space_unbundled TopCat.topologicalSpaceUnbundled
 
 -- Porting note: cannot find a coercion to function otherwise
-attribute [instance] ConcreteCategory.hasCoeToFun in
+attribute [instance] ConcreteCategory.funLike in
 instance (X Y : TopCat.{u}) : CoeFun (X ⟶ Y) fun _ => X → Y where
   coe f := f

bcfa7268

chore: refactor of concrete categories (#3900)

I think the ports

https://github.com/leanprover-community/mathlib4/pull/2902 (MonCat)
https://github.com/leanprover-community/mathlib4/pull/3036 (GroupCat)
https://github.com/leanprover-community/mathlib4/pull/3260 (ModuleCat)

didn't quite get things right, and also have some variation between them. This PR tries to straighten things out.

Major changes:

Have the coercion to type be via X.\a, and put attribute @[coe] on this.

Make sure the coercion from morphisms to functions means that simp lemmas about the underlying bundled morphisms apply directly.

This means we drop lemmas like

lemma Hom.map_mul {X Y : MonCat} (f : X ⟶ Y) (x y : X) : ((forget MonCat).map f) (x * y) = f x * f y

But at the expense of adding lemmas like

lemma coe_comp {X Y Z : MonCat} {f : X ⟶ Y} {g : Y ⟶ Z} : (f ≫ g : X → Z) = g ∘ f := rfl

Overall I'm pretty happy, and it allows me to unstick the long stuck https://github.com/leanprover-community/mathlib4/pull/3105.

This is not everything I want to do to refactor these files, but once I was satisfied that I can move forward with RingCat, I want to get this merged so we can unblock porting progress. I'll promise to come back to this soon! :-)

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

237c33e0

Diff

@@ -169,7 +169,7 @@ set_option linter.uppercaseLean3 false in
 @[simp]
 theorem openEmbedding_iff_comp_isIso' {X Y Z : TopCat} (f : X ⟶ Y) (g : Y ⟶ Z) [IsIso g] :
     OpenEmbedding ((forget TopCat).map f ≫ (forget TopCat).map g) ↔ OpenEmbedding f := by
-  simp only [←forget_obj_eq_coe, ←Functor.map_comp]
+  simp only [←Functor.map_comp]
   exact openEmbedding_iff_comp_isIso f g
 
 -- Porting note: simpNF requested partially simped version below
@@ -186,7 +186,7 @@ set_option linter.uppercaseLean3 false in
 @[simp]
 theorem openEmbedding_iff_isIso_comp' {X Y Z : TopCat} (f : X ⟶ Y) (g : Y ⟶ Z) [IsIso f] :
     OpenEmbedding ((forget TopCat).map f ≫ (forget TopCat).map g) ↔ OpenEmbedding g := by
-  simp only [←forget_obj_eq_coe, ←Functor.map_comp]
+  simp only [←Functor.map_comp]
   exact openEmbedding_iff_isIso_comp f g
 
 end TopCat

bcfa7268

feat: port Topology.Category.Top.Limits.Products (#3709)

Co-authored-by: Moritz Firsching <firsching@google.com> Co-authored-by: Matthew Robert Ballard <100034030+mattrobball@users.noreply.github.com>

c2a84a85

Diff

@@ -84,10 +84,10 @@ set_option linter.uppercaseLean3 false in
 instance topologicalSpace_coe (X : TopCat) : TopologicalSpace X :=
   X.str
 
--- Porting note: cannot see through forget
-instance topologicalSpace_forget (X : TopCat) : TopologicalSpace <| (forget TopCat).obj X := by
-  change TopologicalSpace X
-  infer_instance
+-- Porting note: cannot see through forget; made reducible to get closer to Lean 3 behavior
+@[reducible]
+instance topologicalSpace_forget (X : TopCat) : TopologicalSpace <| (forget TopCat).obj X :=
+  X.str
 
 @[simp]
 theorem coe_of (X : Type u) [TopologicalSpace X] : (of X : Type u) = X := rfl

bcfa7268

feat: port Topology.Category.Top.Limits.Basic (#3487)

Co-authored-by: Scott Morrison <scott@tqft.net> Co-authored-by: Scott Morrison <scott.morrison@gmail.com> Co-authored-by: Jeremy Tan Jie Rui <reddeloostw@gmail.com> Co-authored-by: Parcly Taxel <reddeloostw@gmail.com> Co-authored-by: adamtopaz <github@adamtopaz.com>

1c05ad40

Diff

@@ -81,11 +81,11 @@ def of (X : Type u) [TopologicalSpace X] : TopCat :=
 set_option linter.uppercaseLean3 false in
 #align Top.of TopCat.of
 
-instance (X : TopCat) : TopologicalSpace X :=
+instance topologicalSpace_coe (X : TopCat) : TopologicalSpace X :=
   X.str
 
 -- Porting note: cannot see through forget
-instance (X : TopCat) : TopologicalSpace <| (forget TopCat).obj X := by
+instance topologicalSpace_forget (X : TopCat) : TopologicalSpace <| (forget TopCat).obj X := by
   change TopologicalSpace X
   infer_instance
 
@@ -94,7 +94,7 @@ theorem coe_of (X : Type u) [TopologicalSpace X] : (of X : Type u) = X := rfl
 set_option linter.uppercaseLean3 false in
 #align Top.coe_of TopCat.coe_of
 
-instance : Inhabited TopCat :=
+instance inhabited : Inhabited TopCat :=
   ⟨TopCat.of Empty⟩
 
 -- porting note: added to ease the port of `AlgebraicTopology.TopologicalSimplex`

bcfa7268

feat: port AlgebraicTopology.TopologicalSimplex (#3437)

Co-authored-by: Jeremy Tan Jie Rui <reddeloostw@gmail.com>

d286a1f7

Diff

@@ -64,7 +64,7 @@ instance (X Y : TopCat.{u}) : CoeFun (X ⟶ Y) fun _ => X → Y where
   coe f := f
 
 -- Porting note: simp can prove this; removed simp
-theorem id_app (X : TopCat.{u}) (x : ↑X) : (𝟙 X : X ⟶  X) x = x := rfl
+theorem id_app (X : TopCat.{u}) (x : ↑X) : (𝟙 X : X ⟶ X) x = x := rfl
 set_option linter.uppercaseLean3 false in
 #align Top.id_app TopCat.id_app
 
@@ -97,6 +97,10 @@ set_option linter.uppercaseLean3 false in
 instance : Inhabited TopCat :=
   ⟨TopCat.of Empty⟩
 
+-- porting note: added to ease the port of `AlgebraicTopology.TopologicalSimplex`
+lemma hom_apply {X Y : TopCat} (f : X ⟶ Y) (x : X) :
+  f x = ContinuousMap.toFun f x := rfl
+
 /-- The discrete topology on any type. -/
 def discrete : Type u ⥤ TopCat.{u} where
   obj X := ⟨X , ⊥⟩

bcfa7268

feat: port Topology.Category.Top.EpiMono (#3394)

Co-authored-by: Pol_tta <65514131+Ruben-VandeVelde@users.noreply.github.com> Co-authored-by: EmilieUthaiwat <emiliepathum@gmail.com> Co-authored-by: Matthew Ballard <matt@mrb.email> Co-authored-by: Scott Morrison <scott.morrison@gmail.com>

6d024cdb

Diff

@@ -59,7 +59,9 @@ set_option linter.uppercaseLean3 false in
 #align Top.topological_space_unbundled TopCat.topologicalSpaceUnbundled
 
 -- Porting note: cannot find a coercion to function otherwise
-attribute [local instance] ConcreteCategory.hasCoeToFun
+attribute [instance] ConcreteCategory.hasCoeToFun in
+instance (X Y : TopCat.{u}) : CoeFun (X ⟶ Y) fun _ => X → Y where
+  coe f := f
 
 -- Porting note: simp can prove this; removed simp
 theorem id_app (X : TopCat.{u}) (x : ↑X) : (𝟙 X : X ⟶  X) x = x := rfl

bcfa7268

chore: tidy various files (#3408)

7e7ba10b

Diff

@@ -82,8 +82,6 @@ set_option linter.uppercaseLean3 false in
 instance (X : TopCat) : TopologicalSpace X :=
   X.str
 
--- instance (X : Type u) [TopologicalSpace X] :
-
 -- Porting note: cannot see through forget
 instance (X : TopCat) : TopologicalSpace <| (forget TopCat).obj X := by
   change TopologicalSpace X
@@ -186,4 +184,3 @@ theorem openEmbedding_iff_isIso_comp' {X Y Z : TopCat} (f : X ⟶ Y) (g : Y ⟶
   exact openEmbedding_iff_isIso_comp f g
 
 end TopCat
-

bcfa7268

feat: port Topology.Category.Top.Basic (#2993)

Co-authored-by: Matthew Ballard <matt@mrb.email>

f91e3c24

`topology.category.Top.basic` ⟷ `Mathlib.Topology.Category.TopCat.Basic`

Changes since the initial port

Changes in mathlib3

Changes in mathlib3port

Changes in mathlib4

Dependencies 8 + 377

topology.category.Top.basic ⟷ Mathlib.Topology.Category.TopCat.Basic

Changes since the initial port

Changes in mathlib3

Changes in mathlib3port

Changes in mathlib4

Dependencies 8 + 377

`topology.category.Top.basic` ⟷ `Mathlib.Topology.Category.TopCat.Basic`