algebra.category.Mon.adjunctions | 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

4bcba0da

(last sync)

Changes in mathlib3port

mathlib3

mathlib3port

728ef9db

bump to nightly-2024-04-06-08

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

e34029c9

Diff

@@ -3,8 +3,8 @@ Copyright (c) 2021 Julian Kuelshammer. All rights reserved.
 Released under Apache 2.0 license as described in the file LICENSE.
 Authors: Julian Kuelshammer
 -/
-import Algebra.Category.Mon.Basic
-import Algebra.Category.Semigroup.Basic
+import Algebra.Category.MonCat.Basic
+import Algebra.Category.SemigroupCat.Basic
 import Algebra.Group.WithOne.Basic
 import Algebra.FreeMonoid.Basic

728ef9db

bump to nightly-2023-09-24-06

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

5655435f

Diff

@@ -3,10 +3,10 @@ Copyright (c) 2021 Julian Kuelshammer. All rights reserved.
 Released under Apache 2.0 license as described in the file LICENSE.
 Authors: Julian Kuelshammer
 -/
-import Mathbin.Algebra.Category.Mon.Basic
-import Mathbin.Algebra.Category.Semigroup.Basic
-import Mathbin.Algebra.Group.WithOne.Basic
-import Mathbin.Algebra.FreeMonoid.Basic
+import Algebra.Category.Mon.Basic
+import Algebra.Category.Semigroup.Basic
+import Algebra.Group.WithOne.Basic
+import Algebra.FreeMonoid.Basic
 
 #align_import algebra.category.Mon.adjunctions from "leanprover-community/mathlib"@"728ef9dbb281241906f25cbeb30f90d83e0bb451"

728ef9db

bump to nightly-2023-07-20-09

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

9c56d0dd

Diff

@@ -2,17 +2,14 @@
 Copyright (c) 2021 Julian Kuelshammer. All rights reserved.
 Released under Apache 2.0 license as described in the file LICENSE.
 Authors: Julian Kuelshammer
-
-! This file was ported from Lean 3 source module algebra.category.Mon.adjunctions
-! leanprover-community/mathlib commit 728ef9dbb281241906f25cbeb30f90d83e0bb451
-! Please do not edit these lines, except to modify the commit id
-! if you have ported upstream changes.
 -/
 import Mathbin.Algebra.Category.Mon.Basic
 import Mathbin.Algebra.Category.Semigroup.Basic
 import Mathbin.Algebra.Group.WithOne.Basic
 import Mathbin.Algebra.FreeMonoid.Basic
 
+#align_import algebra.category.Mon.adjunctions from "leanprover-community/mathlib"@"728ef9dbb281241906f25cbeb30f90d83e0bb451"
+
 /-!
 # Adjunctions regarding the category of monoids

728ef9db

bump to nightly-2023-07-04-01

mathlib commit https://github.com/leanprover-community/mathlib/commit/728ef9dbb281241906f25cbeb30f90d83e0bb451

05318d71

Diff

@@ -4,7 +4,7 @@ Released under Apache 2.0 license as described in the file LICENSE.
 Authors: Julian Kuelshammer
 
 ! This file was ported from Lean 3 source module algebra.category.Mon.adjunctions
-! leanprover-community/mathlib commit 4bcba0da3d97399ce99260794213e69ccdf886ee
+! leanprover-community/mathlib commit 728ef9dbb281241906f25cbeb30f90d83e0bb451
 ! Please do not edit these lines, except to modify the commit id
 ! if you have ported upstream changes.
 -/
@@ -16,6 +16,9 @@ import Mathbin.Algebra.FreeMonoid.Basic
 /-!
 # Adjunctions regarding the category of monoids
 
+> THIS FILE IS SYNCHRONIZED WITH MATHLIB4.
+> Any changes to this file require a corresponding PR to mathlib4.
+
 This file proves the adjunction between adjoining a unit to a semigroup and the forgetful functor
 from monoids to semigroups.

4bcba0da

bump to nightly-2023-07-01-19

mathlib commit https://github.com/leanprover-community/mathlib/commit/9240e8be927a0955b9a82c6c85ef499ee3a626b8

5926eecf

Diff

@@ -30,6 +30,7 @@ universe u
 
 open CategoryTheory
 
+#print adjoinOne /-
 /-- The functor of adjoining a neutral element `one` to a semigroup.
  -/
 @[to_additive "The functor of adjoining a neutral element `zero` to a semigroup", simps]
@@ -41,7 +42,9 @@ def adjoinOne : SemigroupCat.{u} ⥤ MonCat.{u}
   map_comp' X Y Z := WithOne.map_comp
 #align adjoin_one adjoinOne
 #align adjoin_zero adjoinZero
+-/
 
+#print hasForgetToSemigroup /-
 @[to_additive hasForgetToAddSemigroup]
 instance hasForgetToSemigroup : HasForget₂ MonCat SemigroupCat
     where forget₂ :=
@@ -49,7 +52,9 @@ instance hasForgetToSemigroup : HasForget₂ MonCat SemigroupCat
       map := fun M N => MonoidHom.toMulHom }
 #align has_forget_to_Semigroup hasForgetToSemigroup
 #align has_forget_to_AddSemigroup hasForgetToAddSemigroup
+-/
 
+#print adjoinOneAdj /-
 /-- The adjoin_one-forgetful adjunction from `Semigroup` to `Mon`.-/
 @[to_additive "The adjoin_one-forgetful adjunction from `AddSemigroup` to `AddMon`"]
 def adjoinOneAdj : adjoinOne ⊣ forget₂ MonCat.{u} SemigroupCat.{u} :=
@@ -65,7 +70,9 @@ def adjoinOneAdj : adjoinOne ⊣ forget₂ MonCat.{u} SemigroupCat.{u} :=
         · simp }
 #align adjoin_one_adj adjoinOneAdj
 #align adjoin_zero_adj adjoinZeroAdj
+-/
 
+#print free /-
 /-- The free functor `Type u ⥤ Mon` sending a type `X` to the free monoid on `X`. -/
 def free : Type u ⥤ MonCat.{u}
     where
@@ -74,13 +81,16 @@ def free : Type u ⥤ MonCat.{u}
   map_id' := by intros; ext1; rfl
   map_comp' := by intros; ext1; rfl
 #align free free
+-/
 
+#print adj /-
 /-- The free-forgetful adjunction for monoids. -/
 def adj : free ⊣ forget MonCat.{u} :=
   Adjunction.mkOfHomEquiv
     { homEquiv := fun X G => FreeMonoid.lift.symm
       homEquiv_naturality_left_symm := fun X Y G f g => by ext1; rfl }
 #align adj adj
+-/
 
 instance : IsRightAdjoint (forget MonCat.{u}) :=
   ⟨_, adj⟩

4bcba0da

bump to nightly-2023-06-01-16

mathlib commit https://github.com/leanprover-community/mathlib/commit/cca40788df1b8755d5baf17ab2f27dacc2e17acb

b9c87c70

Diff

@@ -71,8 +71,8 @@ def free : Type u ⥤ MonCat.{u}
     where
   obj α := MonCat.of (FreeMonoid α)
   map X Y := FreeMonoid.map
-  map_id' := by intros ; ext1; rfl
-  map_comp' := by intros ; ext1; rfl
+  map_id' := by intros; ext1; rfl
+  map_comp' := by intros; ext1; rfl
 #align free free
 
 /-- The free-forgetful adjunction for monoids. -/

4bcba0da

bump to nightly-2023-05-28-04

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

6797a637

Diff

@@ -71,24 +71,15 @@ def free : Type u ⥤ MonCat.{u}
     where
   obj α := MonCat.of (FreeMonoid α)
   map X Y := FreeMonoid.map
-  map_id' := by
-    intros
-    ext1
-    rfl
-  map_comp' := by
-    intros
-    ext1
-    rfl
+  map_id' := by intros ; ext1; rfl
+  map_comp' := by intros ; ext1; rfl
 #align free free
 
 /-- The free-forgetful adjunction for monoids. -/
 def adj : free ⊣ forget MonCat.{u} :=
   Adjunction.mkOfHomEquiv
     { homEquiv := fun X G => FreeMonoid.lift.symm
-      homEquiv_naturality_left_symm := fun X Y G f g =>
-        by
-        ext1
-        rfl }
+      homEquiv_naturality_left_symm := fun X Y G f g => by ext1; rfl }
 #align adj adj
 
 instance : IsRightAdjoint (forget MonCat.{u}) :=

4bcba0da

bump to nightly-2023-03-21-14

mathlib commit https://github.com/leanprover-community/mathlib/commit/290a7ba01fbcab1b64757bdaa270d28f4dcede35

4b782568

Diff

@@ -33,9 +33,9 @@ open CategoryTheory
 /-- The functor of adjoining a neutral element `one` to a semigroup.
  -/
 @[to_additive "The functor of adjoining a neutral element `zero` to a semigroup", simps]
-def adjoinOne : SemigroupCat.{u} ⥤ Mon.{u}
+def adjoinOne : SemigroupCat.{u} ⥤ MonCat.{u}
     where
-  obj S := Mon.of (WithOne S)
+  obj S := MonCat.of (WithOne S)
   map X Y := WithOne.map
   map_id' X := WithOne.map_id
   map_comp' X Y Z := WithOne.map_comp
@@ -43,7 +43,7 @@ def adjoinOne : SemigroupCat.{u} ⥤ Mon.{u}
 #align adjoin_zero adjoinZero
 
 @[to_additive hasForgetToAddSemigroup]
-instance hasForgetToSemigroup : HasForget₂ Mon SemigroupCat
+instance hasForgetToSemigroup : HasForget₂ MonCat SemigroupCat
     where forget₂ :=
     { obj := fun M => SemigroupCat.of M
       map := fun M N => MonoidHom.toMulHom }
@@ -52,7 +52,7 @@ instance hasForgetToSemigroup : HasForget₂ Mon SemigroupCat
 
 /-- The adjoin_one-forgetful adjunction from `Semigroup` to `Mon`.-/
 @[to_additive "The adjoin_one-forgetful adjunction from `AddSemigroup` to `AddMon`"]
-def adjoinOneAdj : adjoinOne ⊣ forget₂ Mon.{u} SemigroupCat.{u} :=
+def adjoinOneAdj : adjoinOne ⊣ forget₂ MonCat.{u} SemigroupCat.{u} :=
   Adjunction.mkOfHomEquiv
     { homEquiv := fun S M => WithOne.lift.symm
       homEquiv_naturality_left_symm := by
@@ -67,8 +67,9 @@ def adjoinOneAdj : adjoinOne ⊣ forget₂ Mon.{u} SemigroupCat.{u} :=
 #align adjoin_zero_adj adjoinZeroAdj
 
 /-- The free functor `Type u ⥤ Mon` sending a type `X` to the free monoid on `X`. -/
-def free : Type u ⥤ Mon.{u} where
-  obj α := Mon.of (FreeMonoid α)
+def free : Type u ⥤ MonCat.{u}
+    where
+  obj α := MonCat.of (FreeMonoid α)
   map X Y := FreeMonoid.map
   map_id' := by
     intros
@@ -81,7 +82,7 @@ def free : Type u ⥤ Mon.{u} where
 #align free free
 
 /-- The free-forgetful adjunction for monoids. -/
-def adj : free ⊣ forget Mon.{u} :=
+def adj : free ⊣ forget MonCat.{u} :=
   Adjunction.mkOfHomEquiv
     { homEquiv := fun X G => FreeMonoid.lift.symm
       homEquiv_naturality_left_symm := fun X Y G f g =>
@@ -90,6 +91,6 @@ def adj : free ⊣ forget Mon.{u} :=
         rfl }
 #align adj adj
 
-instance : IsRightAdjoint (forget Mon.{u}) :=
+instance : IsRightAdjoint (forget MonCat.{u}) :=
   ⟨_, adj⟩

4bcba0da

bump to nightly-2023-02-21-16

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

1107b979

Changes in mathlib4

mathlib3

mathlib4

4bcba0da

style: replace '.-/' by '. -/' (#11938)

Purely automatic replacement. If this is in any way controversial; I'm happy to just close this PR.

3556ded2

Diff

@@ -48,7 +48,7 @@ set_option linter.uppercaseLean3 false in
 set_option linter.uppercaseLean3 false in
 #align has_forget_to_AddSemigroup hasForgetToAddSemigroup
 
-/-- The `adjoinOne`-forgetful adjunction from `SemigroupCat` to `MonCat`.-/
+/-- The `adjoinOne`-forgetful adjunction from `SemigroupCat` to `MonCat`. -/
 @[to_additive "The `adjoinZero`-forgetful adjunction from `AddSemigroupCat` to `AddMonCat`"]
 def adjoinOneAdj : adjoinOne ⊣ forget₂ MonCat.{u} SemigroupCat.{u} :=
   Adjunction.mkOfHomEquiv

4bcba0da

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

@@ -2,17 +2,14 @@
 Copyright (c) 2021 Julian Kuelshammer. All rights reserved.
 Released under Apache 2.0 license as described in the file LICENSE.
 Authors: Julian Kuelshammer
-
-! This file was ported from Lean 3 source module algebra.category.Mon.adjunctions
-! leanprover-community/mathlib commit 4bcba0da3d97399ce99260794213e69ccdf886ee
-! Please do not edit these lines, except to modify the commit id
-! if you have ported upstream changes.
 -/
 import Mathlib.Algebra.Category.MonCat.Basic
 import Mathlib.Algebra.Category.SemigroupCat.Basic
 import Mathlib.Algebra.Group.WithOne.Basic
 import Mathlib.Algebra.FreeMonoid.Basic
 
+#align_import algebra.category.Mon.adjunctions from "leanprover-community/mathlib"@"4bcba0da3d97399ce99260794213e69ccdf886ee"
+
 /-!
 # Adjunctions regarding the category of monoids

4bcba0da

chore: tidy various files (#5971)

bb6d52f7

Diff

@@ -51,8 +51,8 @@ set_option linter.uppercaseLean3 false in
 set_option linter.uppercaseLean3 false in
 #align has_forget_to_AddSemigroup hasForgetToAddSemigroup
 
-/-- The adjoin_one-forgetful adjunction from `SemigroupCat` to `MonCat`.-/
-@[to_additive "The adjoin_one-forgetful adjunction from `AddSemigroupCat` to `AddMonCat`"]
+/-- The `adjoinOne`-forgetful adjunction from `SemigroupCat` to `MonCat`.-/
+@[to_additive "The `adjoinZero`-forgetful adjunction from `AddSemigroupCat` to `AddMonCat`"]
 def adjoinOneAdj : adjoinOne ⊣ forget₂ MonCat.{u} SemigroupCat.{u} :=
   Adjunction.mkOfHomEquiv
     { homEquiv := fun S M => WithOne.lift.symm

4bcba0da

chore: fix focusing dots (#5708)

This PR is the result of running

find . -type f -name "*.lean" -exec sed -i -E 's/^( +)\. /\1· /' {} \;
find . -type f -name "*.lean" -exec sed -i -E 'N;s/^( +·)\n +(.*)$/\1 \2/;P;D' {} \;

which firstly replaces . focusing dots with · and secondly removes isolated instances of such dots, unifying them with the following line. A new rule is placed in the style linter to verify this.

cb02d09e

Diff

@@ -62,8 +62,8 @@ def adjoinOneAdj : adjoinOne ⊣ forget₂ MonCat.{u} SemigroupCat.{u} :=
         simp only [Equiv.symm_symm, adjoinOne_map, coe_comp]
         simp_rw [WithOne.map]
         cases x
-        . rfl
-        . simp
+        · rfl
+        · simp
           rfl }
 #align adjoin_one_adj adjoinOneAdj
 #align adjoin_zero_adj adjoinZeroAdj

4bcba0da

feat: port Algebra.Category.Mon.Adjunctions (#5648)

c85e6ad4

`algebra.category.Mon.adjunctions` ⟷ `Mathlib.Algebra.Category.MonCat.Adjunctions`

Changes since the initial port

Changes in mathlib3

Changes in mathlib3port

Changes in mathlib4

Dependencies 3 + 237

algebra.category.Mon.adjunctions ⟷ Mathlib.Algebra.Category.MonCat.Adjunctions

Changes since the initial port

Changes in mathlib3

Changes in mathlib3port

Changes in mathlib4

Dependencies 3 + 237

`algebra.category.Mon.adjunctions` ⟷ `Mathlib.Algebra.Category.MonCat.Adjunctions`