category_theory.lifting_properties.adjunction

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

32253a1a

(last sync)

Changes in mathlib3port

mathlib3

mathlib3port

3dadefa3

bump to nightly-2023-09-24-06

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

5655435f

Diff

@@ -3,8 +3,8 @@ Copyright (c) 2022 Joël Riou. All rights reserved.
 Released under Apache 2.0 license as described in the file LICENSE.
 Authors: Joël Riou
 -/
-import Mathbin.CategoryTheory.LiftingProperties.Basic
-import Mathbin.CategoryTheory.Adjunction.Basic
+import CategoryTheory.LiftingProperties.Basic
+import CategoryTheory.Adjunction.Basic
 
 #align_import category_theory.lifting_properties.adjunction from "leanprover-community/mathlib"@"3dadefa3f544b1db6214777fe47910739b54c66a"

3dadefa3

bump to nightly-2023-07-20-09

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

9c56d0dd

Diff

@@ -2,15 +2,12 @@
 Copyright (c) 2022 Joël Riou. All rights reserved.
 Released under Apache 2.0 license as described in the file LICENSE.
 Authors: Joël Riou
-
-! This file was ported from Lean 3 source module category_theory.lifting_properties.adjunction
-! leanprover-community/mathlib commit 3dadefa3f544b1db6214777fe47910739b54c66a
-! Please do not edit these lines, except to modify the commit id
-! if you have ported upstream changes.
 -/
 import Mathbin.CategoryTheory.LiftingProperties.Basic
 import Mathbin.CategoryTheory.Adjunction.Basic
 
+#align_import category_theory.lifting_properties.adjunction from "leanprover-community/mathlib"@"3dadefa3f544b1db6214777fe47910739b54c66a"
+
 /-!
 
 # Lifting properties and adjunction

3dadefa3

bump to nightly-2023-06-13-21

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

829520ac

Diff

@@ -40,8 +40,7 @@ section
 variable {A B : C} {X Y : D} {i : A ⟶ B} {p : X ⟶ Y} {u : G.obj A ⟶ X} {v : G.obj B ⟶ Y}
   (sq : CommSq u (G.map i) p v) (adj : G ⊣ F)
 
-include sq
-
+#print CategoryTheory.CommSq.right_adjoint /-
 /-- When we have an adjunction `G ⊣ F`, any commutative square where the left
 map is of the form `G.map i` and the right map is `p` has an "adjoint" commutative
 square whose left map is `i` and whose right map is `F.map p`. -/
@@ -50,7 +49,9 @@ theorem right_adjoint : CommSq (adj.homEquiv _ _ u) i (F.map p) (adj.homEquiv _
     simp only [adjunction.hom_equiv_unit, assoc, ← F.map_comp, sq.w]
     rw [F.map_comp, adjunction.unit_naturality_assoc]⟩
 #align category_theory.comm_sq.right_adjoint CategoryTheory.CommSq.right_adjoint
+-/
 
+#print CategoryTheory.CommSq.rightAdjointLiftStructEquiv /-
 /-- The liftings of a commutative are in bijection with the liftings of its (right)
 adjoint square. -/
 def rightAdjointLiftStructEquiv : sq.LiftStruct ≃ (sq.rightAdjoint adj).LiftStruct
@@ -70,13 +71,16 @@ def rightAdjointLiftStructEquiv : sq.LiftStruct ≃ (sq.rightAdjoint adj).LiftSt
   left_inv := by tidy
   right_inv := by tidy
 #align category_theory.comm_sq.right_adjoint_lift_struct_equiv CategoryTheory.CommSq.rightAdjointLiftStructEquiv
+-/
 
+#print CategoryTheory.CommSq.right_adjoint_hasLift_iff /-
 /-- A square has a lifting if and only if its (right) adjoint square has a lifting. -/
 theorem right_adjoint_hasLift_iff : HasLift (sq.rightAdjoint adj) ↔ HasLift sq :=
   by
   simp only [has_lift.iff]
   exact Equiv.nonempty_congr (sq.right_adjoint_lift_struct_equiv adj).symm
 #align category_theory.comm_sq.right_adjoint_has_lift_iff CategoryTheory.CommSq.right_adjoint_hasLift_iff
+-/
 
 instance [HasLift sq] : HasLift (sq.rightAdjoint adj) := by rw [right_adjoint_has_lift_iff];
   infer_instance
@@ -88,8 +92,7 @@ section
 variable {A B : C} {X Y : D} {i : A ⟶ B} {p : X ⟶ Y} {u : A ⟶ F.obj X} {v : B ⟶ F.obj Y}
   (sq : CommSq u i (F.map p) v) (adj : G ⊣ F)
 
-include sq
-
+#print CategoryTheory.CommSq.left_adjoint /-
 /-- When we have an adjunction `G ⊣ F`, any commutative square where the left
 map is of the form `i` and the right map is `F.map p` has an "adjoint" commutative
 square whose left map is `G.map i` and whose right map is `p`. -/
@@ -98,7 +101,9 @@ theorem left_adjoint : CommSq ((adj.homEquiv _ _).symm u) (G.map i) p ((adj.homE
     simp only [adjunction.hom_equiv_counit, assoc, ← G.map_comp_assoc, ← sq.w]
     rw [G.map_comp, assoc, adjunction.counit_naturality]⟩
 #align category_theory.comm_sq.left_adjoint CategoryTheory.CommSq.left_adjoint
+-/
 
+#print CategoryTheory.CommSq.leftAdjointLiftStructEquiv /-
 /-- The liftings of a commutative are in bijection with the liftings of its (left)
 adjoint square. -/
 def leftAdjointLiftStructEquiv : sq.LiftStruct ≃ (sq.leftAdjoint adj).LiftStruct
@@ -118,13 +123,16 @@ def leftAdjointLiftStructEquiv : sq.LiftStruct ≃ (sq.leftAdjoint adj).LiftStru
   left_inv := by tidy
   right_inv := by tidy
 #align category_theory.comm_sq.left_adjoint_lift_struct_equiv CategoryTheory.CommSq.leftAdjointLiftStructEquiv
+-/
 
+#print CategoryTheory.CommSq.left_adjoint_hasLift_iff /-
 /-- A (left) adjoint square has a lifting if and only if the original square has a lifting. -/
 theorem left_adjoint_hasLift_iff : HasLift (sq.leftAdjoint adj) ↔ HasLift sq :=
   by
   simp only [has_lift.iff]
   exact Equiv.nonempty_congr (sq.left_adjoint_lift_struct_equiv adj).symm
 #align category_theory.comm_sq.left_adjoint_has_lift_iff CategoryTheory.CommSq.left_adjoint_hasLift_iff
+-/
 
 instance [HasLift sq] : HasLift (sq.leftAdjoint adj) := by rw [left_adjoint_has_lift_iff];
   infer_instance
@@ -135,6 +143,7 @@ end CommSq
 
 namespace Adjunction
 
+#print CategoryTheory.Adjunction.hasLiftingProperty_iff /-
 theorem hasLiftingProperty_iff (adj : G ⊣ F) {A B : C} {X Y : D} (i : A ⟶ B) (p : X ⟶ Y) :
     HasLiftingProperty (G.map i) p ↔ HasLiftingProperty i (F.map p) :=
   by
@@ -144,6 +153,7 @@ theorem hasLiftingProperty_iff (adj : G ⊣ F) {A B : C} {X Y : D} (i : A ⟶ B)
   · rw [← sq.right_adjoint_has_lift_iff adj]
     infer_instance
 #align category_theory.adjunction.has_lifting_property_iff CategoryTheory.Adjunction.hasLiftingProperty_iff
+-/
 
 end Adjunction

3dadefa3

bump to nightly-2023-05-28-06

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

ba5d8b97

Diff

@@ -42,9 +42,6 @@ variable {A B : C} {X Y : D} {i : A ⟶ B} {p : X ⟶ Y} {u : G.obj A ⟶ X} {v
 
 include sq
 
-/- warning: category_theory.comm_sq.right_adjoint -> CategoryTheory.CommSq.right_adjoint is a dubious translation:
-<too large>
-Case conversion may be inaccurate. Consider using '#align category_theory.comm_sq.right_adjoint CategoryTheory.CommSq.right_adjointₓ'. -/
 /-- When we have an adjunction `G ⊣ F`, any commutative square where the left
 map is of the form `G.map i` and the right map is `p` has an "adjoint" commutative
 square whose left map is `i` and whose right map is `F.map p`. -/
@@ -54,9 +51,6 @@ theorem right_adjoint : CommSq (adj.homEquiv _ _ u) i (F.map p) (adj.homEquiv _
     rw [F.map_comp, adjunction.unit_naturality_assoc]⟩
 #align category_theory.comm_sq.right_adjoint CategoryTheory.CommSq.right_adjoint
 
-/- warning: category_theory.comm_sq.right_adjoint_lift_struct_equiv -> CategoryTheory.CommSq.rightAdjointLiftStructEquiv is a dubious translation:
-<too large>
-Case conversion may be inaccurate. Consider using '#align category_theory.comm_sq.right_adjoint_lift_struct_equiv CategoryTheory.CommSq.rightAdjointLiftStructEquivₓ'. -/
 /-- The liftings of a commutative are in bijection with the liftings of its (right)
 adjoint square. -/
 def rightAdjointLiftStructEquiv : sq.LiftStruct ≃ (sq.rightAdjoint adj).LiftStruct
@@ -77,9 +71,6 @@ def rightAdjointLiftStructEquiv : sq.LiftStruct ≃ (sq.rightAdjoint adj).LiftSt
   right_inv := by tidy
 #align category_theory.comm_sq.right_adjoint_lift_struct_equiv CategoryTheory.CommSq.rightAdjointLiftStructEquiv
 
-/- warning: category_theory.comm_sq.right_adjoint_has_lift_iff -> CategoryTheory.CommSq.right_adjoint_hasLift_iff is a dubious translation:
-<too large>
-Case conversion may be inaccurate. Consider using '#align category_theory.comm_sq.right_adjoint_has_lift_iff CategoryTheory.CommSq.right_adjoint_hasLift_iffₓ'. -/
 /-- A square has a lifting if and only if its (right) adjoint square has a lifting. -/
 theorem right_adjoint_hasLift_iff : HasLift (sq.rightAdjoint adj) ↔ HasLift sq :=
   by
@@ -99,9 +90,6 @@ variable {A B : C} {X Y : D} {i : A ⟶ B} {p : X ⟶ Y} {u : A ⟶ F.obj X} {v
 
 include sq
 
-/- warning: category_theory.comm_sq.left_adjoint -> CategoryTheory.CommSq.left_adjoint is a dubious translation:
-<too large>
-Case conversion may be inaccurate. Consider using '#align category_theory.comm_sq.left_adjoint CategoryTheory.CommSq.left_adjointₓ'. -/
 /-- When we have an adjunction `G ⊣ F`, any commutative square where the left
 map is of the form `i` and the right map is `F.map p` has an "adjoint" commutative
 square whose left map is `G.map i` and whose right map is `p`. -/
@@ -111,9 +99,6 @@ theorem left_adjoint : CommSq ((adj.homEquiv _ _).symm u) (G.map i) p ((adj.homE
     rw [G.map_comp, assoc, adjunction.counit_naturality]⟩
 #align category_theory.comm_sq.left_adjoint CategoryTheory.CommSq.left_adjoint
 
-/- warning: category_theory.comm_sq.left_adjoint_lift_struct_equiv -> CategoryTheory.CommSq.leftAdjointLiftStructEquiv is a dubious translation:
-<too large>
-Case conversion may be inaccurate. Consider using '#align category_theory.comm_sq.left_adjoint_lift_struct_equiv CategoryTheory.CommSq.leftAdjointLiftStructEquivₓ'. -/
 /-- The liftings of a commutative are in bijection with the liftings of its (left)
 adjoint square. -/
 def leftAdjointLiftStructEquiv : sq.LiftStruct ≃ (sq.leftAdjoint adj).LiftStruct
@@ -134,9 +119,6 @@ def leftAdjointLiftStructEquiv : sq.LiftStruct ≃ (sq.leftAdjoint adj).LiftStru
   right_inv := by tidy
 #align category_theory.comm_sq.left_adjoint_lift_struct_equiv CategoryTheory.CommSq.leftAdjointLiftStructEquiv
 
-/- warning: category_theory.comm_sq.left_adjoint_has_lift_iff -> CategoryTheory.CommSq.left_adjoint_hasLift_iff is a dubious translation:
-<too large>
-Case conversion may be inaccurate. Consider using '#align category_theory.comm_sq.left_adjoint_has_lift_iff CategoryTheory.CommSq.left_adjoint_hasLift_iffₓ'. -/
 /-- A (left) adjoint square has a lifting if and only if the original square has a lifting. -/
 theorem left_adjoint_hasLift_iff : HasLift (sq.leftAdjoint adj) ↔ HasLift sq :=
   by
@@ -153,12 +135,6 @@ end CommSq
 
 namespace Adjunction
 
-/- warning: category_theory.adjunction.has_lifting_property_iff -> CategoryTheory.Adjunction.hasLiftingProperty_iff is a dubious translation:
-lean 3 declaration is
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 theorem hasLiftingProperty_iff (adj : G ⊣ F) {A B : C} {X Y : D} (i : A ⟶ B) (p : X ⟶ Y) :
     HasLiftingProperty (G.map i) p ↔ HasLiftingProperty i (F.map p) :=
   by

3dadefa3

bump to nightly-2023-05-28-04

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

6797a637

Diff

@@ -87,9 +87,7 @@ theorem right_adjoint_hasLift_iff : HasLift (sq.rightAdjoint adj) ↔ HasLift sq
   exact Equiv.nonempty_congr (sq.right_adjoint_lift_struct_equiv adj).symm
 #align category_theory.comm_sq.right_adjoint_has_lift_iff CategoryTheory.CommSq.right_adjoint_hasLift_iff
 
-instance [HasLift sq] : HasLift (sq.rightAdjoint adj) :=
-  by
-  rw [right_adjoint_has_lift_iff]
+instance [HasLift sq] : HasLift (sq.rightAdjoint adj) := by rw [right_adjoint_has_lift_iff];
   infer_instance
 
 end
@@ -146,9 +144,7 @@ theorem left_adjoint_hasLift_iff : HasLift (sq.leftAdjoint adj) ↔ HasLift sq :
   exact Equiv.nonempty_congr (sq.left_adjoint_lift_struct_equiv adj).symm
 #align category_theory.comm_sq.left_adjoint_has_lift_iff CategoryTheory.CommSq.left_adjoint_hasLift_iff
 
-instance [HasLift sq] : HasLift (sq.leftAdjoint adj) :=
-  by
-  rw [left_adjoint_has_lift_iff]
+instance [HasLift sq] : HasLift (sq.leftAdjoint adj) := by rw [left_adjoint_has_lift_iff];
   infer_instance
 
 end

3dadefa3

bump to nightly-2023-05-28-03

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

6c6011cf

Diff

@@ -43,10 +43,7 @@ variable {A B : C} {X Y : D} {i : A ⟶ B} {p : X ⟶ Y} {u : G.obj A ⟶ X} {v
 include sq
 
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 Case conversion may be inaccurate. Consider using '#align category_theory.comm_sq.right_adjoint CategoryTheory.CommSq.right_adjointₓ'. -/
 /-- When we have an adjunction `G ⊣ F`, any commutative square where the left
 map is of the form `G.map i` and the right map is `p` has an "adjoint" commutative
@@ -58,10 +55,7 @@ theorem right_adjoint : CommSq (adj.homEquiv _ _ u) i (F.map p) (adj.homEquiv _
 #align category_theory.comm_sq.right_adjoint CategoryTheory.CommSq.right_adjoint
 
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 Case conversion may be inaccurate. Consider using '#align category_theory.comm_sq.right_adjoint_lift_struct_equiv CategoryTheory.CommSq.rightAdjointLiftStructEquivₓ'. -/
 /-- The liftings of a commutative are in bijection with the liftings of its (right)
 adjoint square. -/
@@ -84,10 +78,7 @@ def rightAdjointLiftStructEquiv : sq.LiftStruct ≃ (sq.rightAdjoint adj).LiftSt
 #align category_theory.comm_sq.right_adjoint_lift_struct_equiv CategoryTheory.CommSq.rightAdjointLiftStructEquiv
 
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 Case conversion may be inaccurate. Consider using '#align category_theory.comm_sq.right_adjoint_has_lift_iff CategoryTheory.CommSq.right_adjoint_hasLift_iffₓ'. -/
 /-- A square has a lifting if and only if its (right) adjoint square has a lifting. -/
 theorem right_adjoint_hasLift_iff : HasLift (sq.rightAdjoint adj) ↔ HasLift sq :=
@@ -111,10 +102,7 @@ variable {A B : C} {X Y : D} {i : A ⟶ B} {p : X ⟶ Y} {u : A ⟶ F.obj X} {v
 include sq
 
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 Case conversion may be inaccurate. Consider using '#align category_theory.comm_sq.left_adjoint CategoryTheory.CommSq.left_adjointₓ'. -/
 /-- When we have an adjunction `G ⊣ F`, any commutative square where the left
 map is of the form `i` and the right map is `F.map p` has an "adjoint" commutative
@@ -126,10 +114,7 @@ theorem left_adjoint : CommSq ((adj.homEquiv _ _).symm u) (G.map i) p ((adj.homE
 #align category_theory.comm_sq.left_adjoint CategoryTheory.CommSq.left_adjoint
 
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 Case conversion may be inaccurate. Consider using '#align category_theory.comm_sq.left_adjoint_lift_struct_equiv CategoryTheory.CommSq.leftAdjointLiftStructEquivₓ'. -/
 /-- The liftings of a commutative are in bijection with the liftings of its (left)
 adjoint square. -/
@@ -152,10 +137,7 @@ def leftAdjointLiftStructEquiv : sq.LiftStruct ≃ (sq.leftAdjoint adj).LiftStru
 #align category_theory.comm_sq.left_adjoint_lift_struct_equiv CategoryTheory.CommSq.leftAdjointLiftStructEquiv
 
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 Case conversion may be inaccurate. Consider using '#align category_theory.comm_sq.left_adjoint_has_lift_iff CategoryTheory.CommSq.left_adjoint_hasLift_iffₓ'. -/
 /-- A (left) adjoint square has a lifting if and only if the original square has a lifting. -/
 theorem left_adjoint_hasLift_iff : HasLift (sq.leftAdjoint adj) ↔ HasLift sq :=

3dadefa3

bump to nightly-2023-05-19-16

mathlib commit https://github.com/leanprover-community/mathlib/commit/95a87616d63b3cb49d3fe678d416fbe9c4217bf4

a31df521

Diff

@@ -46,7 +46,7 @@ include sq
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 Case conversion may be inaccurate. Consider using '#align category_theory.comm_sq.right_adjoint CategoryTheory.CommSq.right_adjointₓ'. -/
 /-- When we have an adjunction `G ⊣ F`, any commutative square where the left
 map is of the form `G.map i` and the right map is `p` has an "adjoint" commutative
@@ -61,7 +61,7 @@ theorem right_adjoint : CommSq (adj.homEquiv _ _ u) i (F.map p) (adj.homEquiv _
 lean 3 declaration is
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 but is expected to have type
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 Case conversion may be inaccurate. Consider using '#align category_theory.comm_sq.right_adjoint_lift_struct_equiv CategoryTheory.CommSq.rightAdjointLiftStructEquivₓ'. -/
 /-- The liftings of a commutative are in bijection with the liftings of its (right)
 adjoint square. -/
@@ -87,7 +87,7 @@ def rightAdjointLiftStructEquiv : sq.LiftStruct ≃ (sq.rightAdjoint adj).LiftSt
 lean 3 declaration is
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 Case conversion may be inaccurate. Consider using '#align category_theory.comm_sq.right_adjoint_has_lift_iff CategoryTheory.CommSq.right_adjoint_hasLift_iffₓ'. -/
 /-- A square has a lifting if and only if its (right) adjoint square has a lifting. -/
 theorem right_adjoint_hasLift_iff : HasLift (sq.rightAdjoint adj) ↔ HasLift sq :=
@@ -114,7 +114,7 @@ include sq
 lean 3 declaration is
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 Case conversion may be inaccurate. Consider using '#align category_theory.comm_sq.left_adjoint CategoryTheory.CommSq.left_adjointₓ'. -/
 /-- When we have an adjunction `G ⊣ F`, any commutative square where the left
 map is of the form `i` and the right map is `F.map p` has an "adjoint" commutative
@@ -129,7 +129,7 @@ theorem left_adjoint : CommSq ((adj.homEquiv _ _).symm u) (G.map i) p ((adj.homE
 lean 3 declaration is
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C D _inst_1 _inst_2 G F A B X Y i p u v sq adj))
 Case conversion may be inaccurate. Consider using '#align category_theory.comm_sq.left_adjoint_lift_struct_equiv CategoryTheory.CommSq.leftAdjointLiftStructEquivₓ'. -/
 /-- The liftings of a commutative are in bijection with the liftings of its (left)
 adjoint square. -/
@@ -155,7 +155,7 @@ def leftAdjointLiftStructEquiv : sq.LiftStruct ≃ (sq.leftAdjoint adj).LiftStru
 lean 3 declaration is
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 Case conversion may be inaccurate. Consider using '#align category_theory.comm_sq.left_adjoint_has_lift_iff CategoryTheory.CommSq.left_adjoint_hasLift_iffₓ'. -/
 /-- A (left) adjoint square has a lifting if and only if the original square has a lifting. -/
 theorem left_adjoint_hasLift_iff : HasLift (sq.leftAdjoint adj) ↔ HasLift sq :=

3dadefa3

bump to nightly-2023-03-11-22

mathlib commit https://github.com/leanprover-community/mathlib/commit/3180fab693e2cee3bff62675571264cb8778b212

a8ee822f

Diff

@@ -46,7 +46,7 @@ include sq
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 Case conversion may be inaccurate. Consider using '#align category_theory.comm_sq.right_adjoint CategoryTheory.CommSq.right_adjointₓ'. -/
 /-- When we have an adjunction `G ⊣ F`, any commutative square where the left
 map is of the form `G.map i` and the right map is `p` has an "adjoint" commutative
@@ -61,7 +61,7 @@ theorem right_adjoint : CommSq (adj.homEquiv _ _ u) i (F.map p) (adj.homEquiv _
 lean 3 declaration is
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 but is expected to have type
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 Case conversion may be inaccurate. Consider using '#align category_theory.comm_sq.right_adjoint_lift_struct_equiv CategoryTheory.CommSq.rightAdjointLiftStructEquivₓ'. -/
 /-- The liftings of a commutative are in bijection with the liftings of its (right)
 adjoint square. -/
@@ -87,7 +87,7 @@ def rightAdjointLiftStructEquiv : sq.LiftStruct ≃ (sq.rightAdjoint adj).LiftSt
 lean 3 declaration is
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 Case conversion may be inaccurate. Consider using '#align category_theory.comm_sq.right_adjoint_has_lift_iff CategoryTheory.CommSq.right_adjoint_hasLift_iffₓ'. -/
 /-- A square has a lifting if and only if its (right) adjoint square has a lifting. -/
 theorem right_adjoint_hasLift_iff : HasLift (sq.rightAdjoint adj) ↔ HasLift sq :=
@@ -114,7 +114,7 @@ include sq
 lean 3 declaration is
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 Case conversion may be inaccurate. Consider using '#align category_theory.comm_sq.left_adjoint CategoryTheory.CommSq.left_adjointₓ'. -/
 /-- When we have an adjunction `G ⊣ F`, any commutative square where the left
 map is of the form `i` and the right map is `F.map p` has an "adjoint" commutative
@@ -129,7 +129,7 @@ theorem left_adjoint : CommSq ((adj.homEquiv _ _).symm u) (G.map i) p ((adj.homE
 lean 3 declaration is
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C D _inst_1 _inst_2 G F A B X Y i p u v sq adj))
 Case conversion may be inaccurate. Consider using '#align category_theory.comm_sq.left_adjoint_lift_struct_equiv CategoryTheory.CommSq.leftAdjointLiftStructEquivₓ'. -/
 /-- The liftings of a commutative are in bijection with the liftings of its (left)
 adjoint square. -/
@@ -155,7 +155,7 @@ def leftAdjointLiftStructEquiv : sq.LiftStruct ≃ (sq.leftAdjoint adj).LiftStru
 lean 3 declaration is
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 Case conversion may be inaccurate. Consider using '#align category_theory.comm_sq.left_adjoint_has_lift_iff CategoryTheory.CommSq.left_adjoint_hasLift_iffₓ'. -/
 /-- A (left) adjoint square has a lifting if and only if the original square has a lifting. -/
 theorem left_adjoint_hasLift_iff : HasLift (sq.leftAdjoint adj) ↔ HasLift sq :=

3dadefa3

bump to nightly-2023-02-24-03

mathlib commit https://github.com/leanprover-community/mathlib/commit/22131150f88a2d125713ffa0f4693e3355b1eb49

2d8bd121

Diff

@@ -4,7 +4,7 @@ Released under Apache 2.0 license as described in the file LICENSE.
 Authors: Joël Riou
 
 ! This file was ported from Lean 3 source module category_theory.lifting_properties.adjunction
-! leanprover-community/mathlib commit 24855f4682aaf5f53513c918b421ba083d3cccd0
+! leanprover-community/mathlib commit 3dadefa3f544b1db6214777fe47910739b54c66a
 ! Please do not edit these lines, except to modify the commit id
 ! if you have ported upstream changes.
 -/
@@ -15,6 +15,9 @@ import Mathbin.CategoryTheory.Adjunction.Basic
 
 # Lifting properties and adjunction
 
+> THIS FILE IS SYNCHRONIZED WITH MATHLIB4.
+> Any changes to this file require a corresponding PR to mathlib4.
+
 In this file, we obtain `adjunction.has_lifting_property_iff`, which states
 that when we have an adjunction `adj : G ⊣ F` between two functors `G : C ⥤ D`
 and `F : D ⥤ C`, then a morphism of the form `G.map i` has the left lifting

24855f46

bump to nightly-2023-02-22-21

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

0652cf4a

Diff

@@ -39,6 +39,12 @@ variable {A B : C} {X Y : D} {i : A ⟶ B} {p : X ⟶ Y} {u : G.obj A ⟶ X} {v
 
 include sq
 
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+Case conversion may be inaccurate. Consider using '#align category_theory.comm_sq.right_adjoint CategoryTheory.CommSq.right_adjointₓ'. -/
 /-- When we have an adjunction `G ⊣ F`, any commutative square where the left
 map is of the form `G.map i` and the right map is `p` has an "adjoint" commutative
 square whose left map is `i` and whose right map is `F.map p`. -/
@@ -48,6 +54,12 @@ theorem right_adjoint : CommSq (adj.homEquiv _ _ u) i (F.map p) (adj.homEquiv _
     rw [F.map_comp, adjunction.unit_naturality_assoc]⟩
 #align category_theory.comm_sq.right_adjoint CategoryTheory.CommSq.right_adjoint
 
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+Case conversion may be inaccurate. Consider using '#align category_theory.comm_sq.right_adjoint_lift_struct_equiv CategoryTheory.CommSq.rightAdjointLiftStructEquivₓ'. -/
 /-- The liftings of a commutative are in bijection with the liftings of its (right)
 adjoint square. -/
 def rightAdjointLiftStructEquiv : sq.LiftStruct ≃ (sq.rightAdjoint adj).LiftStruct
@@ -68,6 +80,12 @@ def rightAdjointLiftStructEquiv : sq.LiftStruct ≃ (sq.rightAdjoint adj).LiftSt
   right_inv := by tidy
 #align category_theory.comm_sq.right_adjoint_lift_struct_equiv CategoryTheory.CommSq.rightAdjointLiftStructEquiv
 
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+Case conversion may be inaccurate. Consider using '#align category_theory.comm_sq.right_adjoint_has_lift_iff CategoryTheory.CommSq.right_adjoint_hasLift_iffₓ'. -/
 /-- A square has a lifting if and only if its (right) adjoint square has a lifting. -/
 theorem right_adjoint_hasLift_iff : HasLift (sq.rightAdjoint adj) ↔ HasLift sq :=
   by
@@ -89,6 +107,12 @@ variable {A B : C} {X Y : D} {i : A ⟶ B} {p : X ⟶ Y} {u : A ⟶ F.obj X} {v
 
 include sq
 
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+Case conversion may be inaccurate. Consider using '#align category_theory.comm_sq.left_adjoint CategoryTheory.CommSq.left_adjointₓ'. -/
 /-- When we have an adjunction `G ⊣ F`, any commutative square where the left
 map is of the form `i` and the right map is `F.map p` has an "adjoint" commutative
 square whose left map is `G.map i` and whose right map is `p`. -/
@@ -98,6 +122,12 @@ theorem left_adjoint : CommSq ((adj.homEquiv _ _).symm u) (G.map i) p ((adj.homE
     rw [G.map_comp, assoc, adjunction.counit_naturality]⟩
 #align category_theory.comm_sq.left_adjoint CategoryTheory.CommSq.left_adjoint
 
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+Case conversion may be inaccurate. Consider using '#align category_theory.comm_sq.left_adjoint_lift_struct_equiv CategoryTheory.CommSq.leftAdjointLiftStructEquivₓ'. -/
 /-- The liftings of a commutative are in bijection with the liftings of its (left)
 adjoint square. -/
 def leftAdjointLiftStructEquiv : sq.LiftStruct ≃ (sq.leftAdjoint adj).LiftStruct
@@ -118,6 +148,12 @@ def leftAdjointLiftStructEquiv : sq.LiftStruct ≃ (sq.leftAdjoint adj).LiftStru
   right_inv := by tidy
 #align category_theory.comm_sq.left_adjoint_lift_struct_equiv CategoryTheory.CommSq.leftAdjointLiftStructEquiv
 
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(CategoryTheory.Category.toCategoryStruct.{u3, u4} D _inst_2)) C (CategoryTheory.CategoryStruct.toQuiver.{u2, u1} C (CategoryTheory.Category.toCategoryStruct.{u2, u1} C _inst_1)) (CategoryTheory.Functor.toPrefunctor.{u3, u2, u4, u1} D _inst_2 C _inst_1 F) X) (Prefunctor.obj.{succ u3, succ u2, u4, u1} D (CategoryTheory.CategoryStruct.toQuiver.{u3, u4} D (CategoryTheory.Category.toCategoryStruct.{u3, u4} D _inst_2)) C (CategoryTheory.CategoryStruct.toQuiver.{u2, u1} C (CategoryTheory.Category.toCategoryStruct.{u2, u1} C _inst_1)) (CategoryTheory.Functor.toPrefunctor.{u3, u2, u4, u1} D _inst_2 C _inst_1 F) Y) u i (Prefunctor.map.{succ u3, succ u2, u4, u1} D (CategoryTheory.CategoryStruct.toQuiver.{u3, u4} D (CategoryTheory.Category.toCategoryStruct.{u3, u4} D _inst_2)) C (CategoryTheory.CategoryStruct.toQuiver.{u2, u1} C (CategoryTheory.Category.toCategoryStruct.{u2, u1} C _inst_1)) (CategoryTheory.Functor.toPrefunctor.{u3, u2, u4, u1} D _inst_2 C _inst_1 F) X Y p) v sq)
+Case conversion may be inaccurate. Consider using '#align category_theory.comm_sq.left_adjoint_has_lift_iff CategoryTheory.CommSq.left_adjoint_hasLift_iffₓ'. -/
 /-- A (left) adjoint square has a lifting if and only if the original square has a lifting. -/
 theorem left_adjoint_hasLift_iff : HasLift (sq.leftAdjoint adj) ↔ HasLift sq :=
   by
@@ -136,6 +172,12 @@ end CommSq
 
 namespace Adjunction
 
+/- warning: category_theory.adjunction.has_lifting_property_iff -> CategoryTheory.Adjunction.hasLiftingProperty_iff is a dubious translation:
+lean 3 declaration is
+  forall {C : Type.{u1}} {D : Type.{u2}} [_inst_1 : CategoryTheory.Category.{u3, u1} C] [_inst_2 : CategoryTheory.Category.{u4, u2} D] {G : CategoryTheory.Functor.{u3, u4, u1, u2} C _inst_1 D _inst_2} {F : CategoryTheory.Functor.{u4, u3, u2, u1} D _inst_2 C _inst_1}, (CategoryTheory.Adjunction.{u3, u4, u1, u2} C _inst_1 D _inst_2 G F) -> (forall {A : C} {B : C} {X : D} {Y : D} (i : Quiver.Hom.{succ u3, u1} C (CategoryTheory.CategoryStruct.toQuiver.{u3, u1} C (CategoryTheory.Category.toCategoryStruct.{u3, u1} C _inst_1)) A B) (p : Quiver.Hom.{succ u4, u2} D (CategoryTheory.CategoryStruct.toQuiver.{u4, u2} D (CategoryTheory.Category.toCategoryStruct.{u4, u2} D _inst_2)) X Y), Iff (CategoryTheory.HasLiftingProperty.{u2, u4} D _inst_2 (CategoryTheory.Functor.obj.{u3, u4, u1, u2} C _inst_1 D _inst_2 G A) (CategoryTheory.Functor.obj.{u3, u4, u1, u2} C _inst_1 D _inst_2 G B) X Y (CategoryTheory.Functor.map.{u3, u4, u1, u2} C _inst_1 D _inst_2 G A B i) p) (CategoryTheory.HasLiftingProperty.{u1, u3} C _inst_1 A B (CategoryTheory.Functor.obj.{u4, u3, u2, u1} D _inst_2 C _inst_1 F X) (CategoryTheory.Functor.obj.{u4, u3, u2, u1} D _inst_2 C _inst_1 F Y) i (CategoryTheory.Functor.map.{u4, u3, u2, u1} D _inst_2 C _inst_1 F X Y p)))
+but is expected to have type
+  forall {C : Type.{u2}} {D : Type.{u1}} [_inst_1 : CategoryTheory.Category.{u4, u2} C] [_inst_2 : CategoryTheory.Category.{u3, u1} D] {G : CategoryTheory.Functor.{u4, u3, u2, u1} C _inst_1 D _inst_2} {F : CategoryTheory.Functor.{u3, u4, u1, u2} D _inst_2 C _inst_1}, (CategoryTheory.Adjunction.{u4, u3, u2, u1} C _inst_1 D _inst_2 G F) -> (forall {A : C} {B : C} {X : D} {Y : D} (i : Quiver.Hom.{succ u4, u2} C (CategoryTheory.CategoryStruct.toQuiver.{u4, u2} C (CategoryTheory.Category.toCategoryStruct.{u4, u2} C _inst_1)) A B) (p : Quiver.Hom.{succ u3, u1} D (CategoryTheory.CategoryStruct.toQuiver.{u3, u1} D (CategoryTheory.Category.toCategoryStruct.{u3, u1} D _inst_2)) X Y), Iff (CategoryTheory.HasLiftingProperty.{u1, u3} D _inst_2 (Prefunctor.obj.{succ u4, succ u3, u2, u1} C (CategoryTheory.CategoryStruct.toQuiver.{u4, u2} C (CategoryTheory.Category.toCategoryStruct.{u4, u2} C _inst_1)) D (CategoryTheory.CategoryStruct.toQuiver.{u3, u1} D (CategoryTheory.Category.toCategoryStruct.{u3, u1} D _inst_2)) (CategoryTheory.Functor.toPrefunctor.{u4, u3, u2, u1} C _inst_1 D _inst_2 G) A) (Prefunctor.obj.{succ u4, succ u3, u2, u1} C (CategoryTheory.CategoryStruct.toQuiver.{u4, u2} C (CategoryTheory.Category.toCategoryStruct.{u4, u2} C _inst_1)) D (CategoryTheory.CategoryStruct.toQuiver.{u3, u1} D (CategoryTheory.Category.toCategoryStruct.{u3, u1} D _inst_2)) (CategoryTheory.Functor.toPrefunctor.{u4, u3, u2, u1} C _inst_1 D _inst_2 G) B) X Y (Prefunctor.map.{succ u4, succ u3, u2, u1} C (CategoryTheory.CategoryStruct.toQuiver.{u4, u2} C (CategoryTheory.Category.toCategoryStruct.{u4, u2} C _inst_1)) D (CategoryTheory.CategoryStruct.toQuiver.{u3, u1} D (CategoryTheory.Category.toCategoryStruct.{u3, u1} D _inst_2)) (CategoryTheory.Functor.toPrefunctor.{u4, u3, u2, u1} C _inst_1 D _inst_2 G) A B i) p) (CategoryTheory.HasLiftingProperty.{u2, u4} C _inst_1 A B (Prefunctor.obj.{succ u3, succ u4, u1, u2} D (CategoryTheory.CategoryStruct.toQuiver.{u3, u1} D (CategoryTheory.Category.toCategoryStruct.{u3, u1} D _inst_2)) C (CategoryTheory.CategoryStruct.toQuiver.{u4, u2} C (CategoryTheory.Category.toCategoryStruct.{u4, u2} C _inst_1)) (CategoryTheory.Functor.toPrefunctor.{u3, u4, u1, u2} D _inst_2 C _inst_1 F) X) (Prefunctor.obj.{succ u3, succ u4, u1, u2} D (CategoryTheory.CategoryStruct.toQuiver.{u3, u1} D (CategoryTheory.Category.toCategoryStruct.{u3, u1} D _inst_2)) C (CategoryTheory.CategoryStruct.toQuiver.{u4, u2} C (CategoryTheory.Category.toCategoryStruct.{u4, u2} C _inst_1)) (CategoryTheory.Functor.toPrefunctor.{u3, u4, u1, u2} D _inst_2 C _inst_1 F) Y) i (Prefunctor.map.{succ u3, succ u4, u1, u2} D (CategoryTheory.CategoryStruct.toQuiver.{u3, u1} D (CategoryTheory.Category.toCategoryStruct.{u3, u1} D _inst_2)) C (CategoryTheory.CategoryStruct.toQuiver.{u4, u2} C (CategoryTheory.Category.toCategoryStruct.{u4, u2} C _inst_1)) (CategoryTheory.Functor.toPrefunctor.{u3, u4, u1, u2} D _inst_2 C _inst_1 F) X Y p)))
+Case conversion may be inaccurate. Consider using '#align category_theory.adjunction.has_lifting_property_iff CategoryTheory.Adjunction.hasLiftingProperty_iffₓ'. -/
 theorem hasLiftingProperty_iff (adj : G ⊣ F) {A B : C} {X Y : D} (i : A ⟶ B) (p : X ⟶ Y) :
     HasLiftingProperty (G.map i) p ↔ HasLiftingProperty i (F.map p) :=
   by

24855f46

bump to nightly-2023-02-21-16

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

1107b979

Changes in mathlib4

mathlib3

mathlib4

32253a1a

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

@@ -25,7 +25,7 @@ namespace CategoryTheory
 
 open Category
 
-variable {C D : Type _} [Category C] [Category D] {G : C ⥤ D} {F : D ⥤ C}
+variable {C D : Type*} [Category C] [Category D] {G : C ⥤ D} {F : D ⥤ C}
 
 namespace CommSq

32253a1a

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

@@ -2,15 +2,12 @@
 Copyright (c) 2022 Joël Riou. All rights reserved.
 Released under Apache 2.0 license as described in the file LICENSE.
 Authors: Joël Riou
-
-! This file was ported from Lean 3 source module category_theory.lifting_properties.adjunction
-! leanprover-community/mathlib commit 32253a1a1071173b33dc7d6a218cf722c6feb514
-! Please do not edit these lines, except to modify the commit id
-! if you have ported upstream changes.
 -/
 import Mathlib.CategoryTheory.LiftingProperties.Basic
 import Mathlib.CategoryTheory.Adjunction.Basic
 
+#align_import category_theory.lifting_properties.adjunction from "leanprover-community/mathlib"@"32253a1a1071173b33dc7d6a218cf722c6feb514"
+
 /-!
 
 # Lifting properties and adjunction

32253a1a

feat: port CategoryTheory.LiftingProperties.Adjunction (#2329)

Co-authored-by: Ruben Van de Velde <65514131+Ruben-VandeVelde@users.noreply.github.com> Co-authored-by: Matthew Ballard <matt@mrb.email> Co-authored-by: thorimur <68410468+thorimur@users.noreply.github.com>

2576ab9b

`category_theory.lifting_properties.adjunction` ⟷ `Mathlib.CategoryTheory.LiftingProperties.Adjunction`

Changes since the initial port

Changes in mathlib3

Changes in mathlib3port

Changes in mathlib4

Dependencies 17

category_theory.lifting_properties.adjunction ⟷ Mathlib.CategoryTheory.LiftingProperties.Adjunction

Changes since the initial port

Changes in mathlib3

Changes in mathlib3port

Changes in mathlib4

Dependencies 17

`category_theory.lifting_properties.adjunction` ⟷ `Mathlib.CategoryTheory.LiftingProperties.Adjunction`