category_theory.products.associator | 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

dc6c365e

(last sync)

Changes in mathlib3port

mathlib3

mathlib3port

1ead2234

bump to nightly-2024-04-14-09

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

f736ea6b

Diff

@@ -57,14 +57,15 @@ def associativity : (C × D) × E ≌ C × D × E :=
 -/
 
 #print CategoryTheory.prod.associatorIsEquivalence /-
-instance associatorIsEquivalence : IsEquivalence (associator C D E) :=
-  (by infer_instance : IsEquivalence (associativity C D E).Functor)
+instance associatorIsEquivalence : CategoryTheory.Functor.IsEquivalence (associator C D E) :=
+  (by infer_instance : CategoryTheory.Functor.IsEquivalence (associativity C D E).Functor)
 #align category_theory.prod.associator_is_equivalence CategoryTheory.prod.associatorIsEquivalence
 -/
 
 #print CategoryTheory.prod.inverseAssociatorIsEquivalence /-
-instance inverseAssociatorIsEquivalence : IsEquivalence (inverseAssociator C D E) :=
-  (by infer_instance : IsEquivalence (associativity C D E).inverse)
+instance inverseAssociatorIsEquivalence :
+    CategoryTheory.Functor.IsEquivalence (inverseAssociator C D E) :=
+  (by infer_instance : CategoryTheory.Functor.IsEquivalence (associativity C D E).inverse)
 #align category_theory.prod.inverse_associator_is_equivalence CategoryTheory.prod.inverseAssociatorIsEquivalence
 -/

1ead2234

bump to nightly-2023-09-24-06

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

5655435f

Diff

@@ -3,7 +3,7 @@ Copyright (c) 2017 Scott Morrison. All rights reserved.
 Released under Apache 2.0 license as described in the file LICENSE.
 Authors: Stephen Morgan, Scott Morrison
 -/
-import Mathbin.CategoryTheory.Products.Basic
+import CategoryTheory.Products.Basic
 
 #align_import category_theory.products.associator from "leanprover-community/mathlib"@"1ead22342e1a078bd44744ace999f85756555d35"

1ead2234

bump to nightly-2023-07-20-09

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

9c56d0dd

Diff

@@ -2,14 +2,11 @@
 Copyright (c) 2017 Scott Morrison. All rights reserved.
 Released under Apache 2.0 license as described in the file LICENSE.
 Authors: Stephen Morgan, Scott Morrison
-
-! This file was ported from Lean 3 source module category_theory.products.associator
-! leanprover-community/mathlib commit 1ead22342e1a078bd44744ace999f85756555d35
-! Please do not edit these lines, except to modify the commit id
-! if you have ported upstream changes.
 -/
 import Mathbin.CategoryTheory.Products.Basic
 
+#align_import category_theory.products.associator from "leanprover-community/mathlib"@"1ead22342e1a078bd44744ace999f85756555d35"
+
 /-!
 > THIS FILE IS SYNCHRONIZED WITH MATHLIB4.
 > Any changes to this file require a corresponding PR to mathlib4.

1ead2234

bump to nightly-2023-06-13-21

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

829520ac

Diff

@@ -49,6 +49,7 @@ def inverseAssociator : C × D × E ⥤ (C × D) × E
 #align category_theory.prod.inverse_associator CategoryTheory.prod.inverseAssociator
 -/
 
+#print CategoryTheory.prod.associativity /-
 /-- The equivalence of categories expressing associativity of products of categories.
 -/
 def associativity : (C × D) × E ≌ C × D × E :=
@@ -56,6 +57,7 @@ def associativity : (C × D) × E ≌ C × D × E :=
     (NatIso.ofComponents (fun X => eqToIso (by simp)) (by tidy))
     (NatIso.ofComponents (fun X => eqToIso (by simp)) (by tidy))
 #align category_theory.prod.associativity CategoryTheory.prod.associativity
+-/
 
 #print CategoryTheory.prod.associatorIsEquivalence /-
 instance associatorIsEquivalence : IsEquivalence (associator C D E) :=

1ead2234

bump to nightly-2023-05-28-06

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

ba5d8b97

Diff

@@ -49,12 +49,6 @@ def inverseAssociator : C × D × E ⥤ (C × D) × E
 #align category_theory.prod.inverse_associator CategoryTheory.prod.inverseAssociator
 -/
 
-/- warning: category_theory.prod.associativity -> CategoryTheory.prod.associativity is a dubious translation:
-lean 3 declaration is
-  forall (C : Type.{u4}) [_inst_1 : CategoryTheory.Category.{u1, u4} C] (D : Type.{u5}) [_inst_2 : CategoryTheory.Category.{u2, u5} D] (E : Type.{u6}) [_inst_3 : CategoryTheory.Category.{u3, u6} E], CategoryTheory.Equivalence.{max (max u1 u2) u3, max u1 u2 u3, max (max u4 u5) u6, max u4 u5 u6} (Prod.{max u4 u5, u6} (Prod.{u4, u5} C D) E) (CategoryTheory.prod.{max u1 u2, u3, max u4 u5, u6} (Prod.{u4, u5} C D) (CategoryTheory.prod.{u1, u2, u4, u5} C _inst_1 D _inst_2) E _inst_3) (Prod.{u4, max u5 u6} C (Prod.{u5, u6} D E)) (CategoryTheory.prod.{u1, max u2 u3, u4, max u5 u6} C _inst_1 (Prod.{u5, u6} D E) (CategoryTheory.prod.{u2, u3, u5, u6} D _inst_2 E _inst_3))
-but is expected to have type
-  forall (C : Type.{u4}) [_inst_1 : CategoryTheory.Category.{u1, u4} C] (D : Type.{u5}) [_inst_2 : CategoryTheory.Category.{u2, u5} D] (E : Type.{u6}) [_inst_3 : CategoryTheory.Category.{u3, u6} E], CategoryTheory.Equivalence.{max (max u1 u2) u3, max (max u1 u2) u3, max u6 u5 u4, max (max u6 u5) u4} (Prod.{max u5 u4, u6} (Prod.{u4, u5} C D) E) (Prod.{u4, max u6 u5} C (Prod.{u5, u6} D E)) (CategoryTheory.prod.{max u1 u2, u3, max u4 u5, u6} (Prod.{u4, u5} C D) (CategoryTheory.prod.{u1, u2, u4, u5} C _inst_1 D _inst_2) E _inst_3) (CategoryTheory.prod.{u1, max u2 u3, u4, max u5 u6} C _inst_1 (Prod.{u5, u6} D E) (CategoryTheory.prod.{u2, u3, u5, u6} D _inst_2 E _inst_3))
-Case conversion may be inaccurate. Consider using '#align category_theory.prod.associativity CategoryTheory.prod.associativityₓ'. -/
 /-- The equivalence of categories expressing associativity of products of categories.
 -/
 def associativity : (C × D) × E ≌ C × D × E :=

1ead2234

bump to nightly-2023-02-21-16

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

1107b979

Changes in mathlib4

mathlib3

mathlib4

dc6c365e

chore(CategoryTheory): move Full, Faithful, EssSurj, IsEquivalence and ReflectsIsomorphisms to the Functor namespace (#11985)

These notions on functors are now Functor.Full, Functor.Faithful, Functor.EssSurj, Functor.IsEquivalence, Functor.ReflectsIsomorphisms. Deprecated aliases are introduced for the previous names.

65b7affc

Diff

@@ -47,12 +47,12 @@ def associativity : (C × D) × E ≌ C × D × E :=
     (NatIso.ofComponents fun X => eqToIso (by simp))
 #align category_theory.prod.associativity CategoryTheory.prod.associativity
 
-instance associatorIsEquivalence : IsEquivalence (associator C D E) :=
-  (by infer_instance : IsEquivalence (associativity C D E).functor)
+instance associatorIsEquivalence : (associator C D E).IsEquivalence :=
+  (by infer_instance : (associativity C D E).functor.IsEquivalence)
 #align category_theory.prod.associator_is_equivalence CategoryTheory.prod.associatorIsEquivalence
 
-instance inverseAssociatorIsEquivalence : IsEquivalence (inverseAssociator C D E) :=
-  (by infer_instance : IsEquivalence (associativity C D E).inverse)
+instance inverseAssociatorIsEquivalence : (inverseAssociator C D E).IsEquivalence :=
+  (by infer_instance : (associativity C D E).inverse.IsEquivalence)
 #align category_theory.prod.inverse_associator_is_equivalence CategoryTheory.prod.inverseAssociatorIsEquivalence
 
 -- TODO unitors?

dc6c365e

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

@@ -2,14 +2,11 @@
 Copyright (c) 2017 Scott Morrison. All rights reserved.
 Released under Apache 2.0 license as described in the file LICENSE.
 Authors: Stephen Morgan, Scott Morrison
-
-! This file was ported from Lean 3 source module category_theory.products.associator
-! leanprover-community/mathlib commit dc6c365e751e34d100e80fe6e314c3c3e0fd2988
-! Please do not edit these lines, except to modify the commit id
-! if you have ported upstream changes.
 -/
 import Mathlib.CategoryTheory.Products.Basic
 
+#align_import category_theory.products.associator from "leanprover-community/mathlib"@"dc6c365e751e34d100e80fe6e314c3c3e0fd2988"
+
 /-!
 The associator functor `((C × D) × E) ⥤ (C × (D × E))` and its inverse form an equivalence.
 -/

dc6c365e

chore: review of automation in category theory (#4793)

Clean up of automation in the category theory library. Leaving out unnecessary proof steps, or fields done by aesop_cat, and making more use of available autoparameters.

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

5b958613

Diff

@@ -46,8 +46,8 @@ def inverseAssociator : C × D × E ⥤ (C × D) × E
 -/
 def associativity : (C × D) × E ≌ C × D × E :=
   Equivalence.mk (associator C D E) (inverseAssociator C D E)
-    (NatIso.ofComponents (fun X => eqToIso (by simp)) (by aesop_cat))
-    (NatIso.ofComponents (fun X => eqToIso (by simp)) (by aesop_cat))
+    (NatIso.ofComponents fun X => eqToIso (by simp))
+    (NatIso.ofComponents fun X => eqToIso (by simp))
 #align category_theory.prod.associativity CategoryTheory.prod.associativity
 
 instance associatorIsEquivalence : IsEquivalence (associator C D E) :=

dc6c365e

feat: port CategoryTheory.Products.Associator (#2274)

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

3e38421c

`category_theory.products.associator` ⟷ `Mathlib.CategoryTheory.Products.Associator`

Changes since the initial port

Changes in mathlib3

Changes in mathlib3port

Changes in mathlib4

Dependencies 15

category_theory.products.associator ⟷ Mathlib.CategoryTheory.Products.Associator

Changes since the initial port

Changes in mathlib3

Changes in mathlib3port

Changes in mathlib4

Dependencies 15

`category_theory.products.associator` ⟷ `Mathlib.CategoryTheory.Products.Associator`