measure_theory.group.pointwise | 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

66f7114a

(last sync)

Changes in mathlib3port

mathlib3

mathlib3port

bd15ff41

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) 2021 Yury G. Kudryashov. All rights reserved.
 Released under Apache 2.0 license as described in the file LICENSE.
 Authors: Yury G. Kudryashov, Alex J. Best
 -/
-import Mathbin.MeasureTheory.Group.Arithmetic
+import MeasureTheory.Group.Arithmetic
 
 #align_import measure_theory.group.pointwise from "leanprover-community/mathlib"@"bd15ff41b70f5e2cc210f26f25a8d5c53b20d3de"

bd15ff41

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) 2021 Yury G. Kudryashov. All rights reserved.
 Released under Apache 2.0 license as described in the file LICENSE.
 Authors: Yury G. Kudryashov, Alex J. Best
-
-! This file was ported from Lean 3 source module measure_theory.group.pointwise
-! leanprover-community/mathlib commit bd15ff41b70f5e2cc210f26f25a8d5c53b20d3de
-! Please do not edit these lines, except to modify the commit id
-! if you have ported upstream changes.
 -/
 import Mathbin.MeasureTheory.Group.Arithmetic
 
+#align_import measure_theory.group.pointwise from "leanprover-community/mathlib"@"bd15ff41b70f5e2cc210f26f25a8d5c53b20d3de"
+
 /-!
 # Pointwise set operations on `measurable_set`s

bd15ff41

bump to nightly-2023-06-13-21

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

829520ac

Diff

@@ -26,6 +26,7 @@ open scoped Pointwise
 
 open Set
 
+#print MeasurableSet.const_smul /-
 @[to_additive]
 theorem MeasurableSet.const_smul {G α : Type _} [Group G] [MulAction G α] [MeasurableSpace G]
     [MeasurableSpace α] [MeasurableSMul G α] {s : Set α} (hs : MeasurableSet s) (a : G) :
@@ -34,7 +35,9 @@ theorem MeasurableSet.const_smul {G α : Type _} [Group G] [MulAction G α] [Mea
   exact measurable_const_smul _ hs
 #align measurable_set.const_smul MeasurableSet.const_smul
 #align measurable_set.const_vadd MeasurableSet.const_vadd
+-/
 
+#print MeasurableSet.const_smul_of_ne_zero /-
 theorem MeasurableSet.const_smul_of_ne_zero {G₀ α : Type _} [GroupWithZero G₀] [MulAction G₀ α]
     [MeasurableSpace G₀] [MeasurableSpace α] [MeasurableSMul G₀ α] {s : Set α}
     (hs : MeasurableSet s) {a : G₀} (ha : a ≠ 0) : MeasurableSet (a • s) :=
@@ -42,7 +45,9 @@ theorem MeasurableSet.const_smul_of_ne_zero {G₀ α : Type _} [GroupWithZero G
   rw [← preimage_smul_inv₀ ha]
   exact measurable_const_smul _ hs
 #align measurable_set.const_smul_of_ne_zero MeasurableSet.const_smul_of_ne_zero
+-/
 
+#print MeasurableSet.const_smul₀ /-
 theorem MeasurableSet.const_smul₀ {G₀ α : Type _} [GroupWithZero G₀] [Zero α]
     [MulActionWithZero G₀ α] [MeasurableSpace G₀] [MeasurableSpace α] [MeasurableSMul G₀ α]
     [MeasurableSingletonClass α] {s : Set α} (hs : MeasurableSet s) (a : G₀) :
@@ -50,4 +55,5 @@ theorem MeasurableSet.const_smul₀ {G₀ α : Type _} [GroupWithZero G₀] [Zer
   rcases eq_or_ne a 0 with (rfl | ha)
   exacts [(subsingleton_zero_smul_set s).MeasurableSet, hs.const_smul_of_ne_zero ha]
 #align measurable_set.const_smul₀ MeasurableSet.const_smul₀
+-/

bd15ff41

bump to nightly-2023-06-01-16

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

b9c87c70

Diff

@@ -48,6 +48,6 @@ theorem MeasurableSet.const_smul₀ {G₀ α : Type _} [GroupWithZero G₀] [Zer
     [MeasurableSingletonClass α] {s : Set α} (hs : MeasurableSet s) (a : G₀) :
     MeasurableSet (a • s) := by
   rcases eq_or_ne a 0 with (rfl | ha)
-  exacts[(subsingleton_zero_smul_set s).MeasurableSet, hs.const_smul_of_ne_zero ha]
+  exacts [(subsingleton_zero_smul_set s).MeasurableSet, hs.const_smul_of_ne_zero ha]
 #align measurable_set.const_smul₀ MeasurableSet.const_smul₀

bd15ff41

bump to nightly-2023-05-28-18

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

8d353152

Diff

@@ -22,7 +22,7 @@ no `measurable_set.mul` etc.
 -/
 
 
-open Pointwise
+open scoped Pointwise
 
 open Set

bd15ff41

bump to nightly-2023-05-28-06

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

ba5d8b97

Diff

@@ -26,12 +26,6 @@ open Pointwise
 
 open Set
 
-/- warning: measurable_set.const_smul -> MeasurableSet.const_smul is a dubious translation:
-lean 3 declaration is
-  forall {G : Type.{u1}} {α : Type.{u2}} [_inst_1 : Group.{u1} G] [_inst_2 : MulAction.{u1, u2} G α (DivInvMonoid.toMonoid.{u1} G (Group.toDivInvMonoid.{u1} G _inst_1))] [_inst_3 : MeasurableSpace.{u1} G] [_inst_4 : MeasurableSpace.{u2} α] [_inst_5 : MeasurableSMul.{u1, u2} G α (MulAction.toHasSmul.{u1, u2} G α (DivInvMonoid.toMonoid.{u1} G (Group.toDivInvMonoid.{u1} G _inst_1)) _inst_2) _inst_3 _inst_4] {s : Set.{u2} α}, (MeasurableSet.{u2} α _inst_4 s) -> (forall (a : G), MeasurableSet.{u2} α _inst_4 (SMul.smul.{u1, u2} G (Set.{u2} α) (Set.smulSet.{u1, u2} G α (MulAction.toHasSmul.{u1, u2} G α (DivInvMonoid.toMonoid.{u1} G (Group.toDivInvMonoid.{u1} G _inst_1)) _inst_2)) a s))
-but is expected to have type
-  forall {G : Type.{u2}} {α : Type.{u1}} [_inst_1 : Group.{u2} G] [_inst_2 : MulAction.{u2, u1} G α (DivInvMonoid.toMonoid.{u2} G (Group.toDivInvMonoid.{u2} G _inst_1))] [_inst_3 : MeasurableSpace.{u2} G] [_inst_4 : MeasurableSpace.{u1} α] [_inst_5 : MeasurableSMul.{u2, u1} G α (MulAction.toSMul.{u2, u1} G α (DivInvMonoid.toMonoid.{u2} G (Group.toDivInvMonoid.{u2} G _inst_1)) _inst_2) _inst_3 _inst_4] {s : Set.{u1} α}, (MeasurableSet.{u1} α _inst_4 s) -> (forall (a : G), MeasurableSet.{u1} α _inst_4 (HSMul.hSMul.{u2, u1, u1} G (Set.{u1} α) (Set.{u1} α) (instHSMul.{u2, u1} G (Set.{u1} α) (Set.smulSet.{u2, u1} G α (MulAction.toSMul.{u2, u1} G α (DivInvMonoid.toMonoid.{u2} G (Group.toDivInvMonoid.{u2} G _inst_1)) _inst_2))) a s))
-Case conversion may be inaccurate. Consider using '#align measurable_set.const_smul MeasurableSet.const_smulₓ'. -/
 @[to_additive]
 theorem MeasurableSet.const_smul {G α : Type _} [Group G] [MulAction G α] [MeasurableSpace G]
     [MeasurableSpace α] [MeasurableSMul G α] {s : Set α} (hs : MeasurableSet s) (a : G) :
@@ -41,12 +35,6 @@ theorem MeasurableSet.const_smul {G α : Type _} [Group G] [MulAction G α] [Mea
 #align measurable_set.const_smul MeasurableSet.const_smul
 #align measurable_set.const_vadd MeasurableSet.const_vadd
 
-/- warning: measurable_set.const_smul_of_ne_zero -> MeasurableSet.const_smul_of_ne_zero is a dubious translation:
-lean 3 declaration is
-  forall {G₀ : Type.{u1}} {α : Type.{u2}} [_inst_1 : GroupWithZero.{u1} G₀] [_inst_2 : MulAction.{u1, u2} G₀ α (MonoidWithZero.toMonoid.{u1} G₀ (GroupWithZero.toMonoidWithZero.{u1} G₀ _inst_1))] [_inst_3 : MeasurableSpace.{u1} G₀] [_inst_4 : MeasurableSpace.{u2} α] [_inst_5 : MeasurableSMul.{u1, u2} G₀ α (MulAction.toHasSmul.{u1, u2} G₀ α (MonoidWithZero.toMonoid.{u1} G₀ (GroupWithZero.toMonoidWithZero.{u1} G₀ _inst_1)) _inst_2) _inst_3 _inst_4] {s : Set.{u2} α}, (MeasurableSet.{u2} α _inst_4 s) -> (forall {a : G₀}, (Ne.{succ u1} G₀ a (OfNat.ofNat.{u1} G₀ 0 (OfNat.mk.{u1} G₀ 0 (Zero.zero.{u1} G₀ (MulZeroClass.toHasZero.{u1} G₀ (MulZeroOneClass.toMulZeroClass.{u1} G₀ (MonoidWithZero.toMulZeroOneClass.{u1} G₀ (GroupWithZero.toMonoidWithZero.{u1} G₀ _inst_1)))))))) -> (MeasurableSet.{u2} α _inst_4 (SMul.smul.{u1, u2} G₀ (Set.{u2} α) (Set.smulSet.{u1, u2} G₀ α (MulAction.toHasSmul.{u1, u2} G₀ α (MonoidWithZero.toMonoid.{u1} G₀ (GroupWithZero.toMonoidWithZero.{u1} G₀ _inst_1)) _inst_2)) a s)))
-but is expected to have type
-  forall {G₀ : Type.{u2}} {α : Type.{u1}} [_inst_1 : GroupWithZero.{u2} G₀] [_inst_2 : MulAction.{u2, u1} G₀ α (MonoidWithZero.toMonoid.{u2} G₀ (GroupWithZero.toMonoidWithZero.{u2} G₀ _inst_1))] [_inst_3 : MeasurableSpace.{u2} G₀] [_inst_4 : MeasurableSpace.{u1} α] [_inst_5 : MeasurableSMul.{u2, u1} G₀ α (MulAction.toSMul.{u2, u1} G₀ α (MonoidWithZero.toMonoid.{u2} G₀ (GroupWithZero.toMonoidWithZero.{u2} G₀ _inst_1)) _inst_2) _inst_3 _inst_4] {s : Set.{u1} α}, (MeasurableSet.{u1} α _inst_4 s) -> (forall {a : G₀}, (Ne.{succ u2} G₀ a (OfNat.ofNat.{u2} G₀ 0 (Zero.toOfNat0.{u2} G₀ (MonoidWithZero.toZero.{u2} G₀ (GroupWithZero.toMonoidWithZero.{u2} G₀ _inst_1))))) -> (MeasurableSet.{u1} α _inst_4 (HSMul.hSMul.{u2, u1, u1} G₀ (Set.{u1} α) (Set.{u1} α) (instHSMul.{u2, u1} G₀ (Set.{u1} α) (Set.smulSet.{u2, u1} G₀ α (MulAction.toSMul.{u2, u1} G₀ α (MonoidWithZero.toMonoid.{u2} G₀ (GroupWithZero.toMonoidWithZero.{u2} G₀ _inst_1)) _inst_2))) a s)))
-Case conversion may be inaccurate. Consider using '#align measurable_set.const_smul_of_ne_zero MeasurableSet.const_smul_of_ne_zeroₓ'. -/
 theorem MeasurableSet.const_smul_of_ne_zero {G₀ α : Type _} [GroupWithZero G₀] [MulAction G₀ α]
     [MeasurableSpace G₀] [MeasurableSpace α] [MeasurableSMul G₀ α] {s : Set α}
     (hs : MeasurableSet s) {a : G₀} (ha : a ≠ 0) : MeasurableSet (a • s) :=
@@ -55,12 +43,6 @@ theorem MeasurableSet.const_smul_of_ne_zero {G₀ α : Type _} [GroupWithZero G
   exact measurable_const_smul _ hs
 #align measurable_set.const_smul_of_ne_zero MeasurableSet.const_smul_of_ne_zero
 
-/- warning: measurable_set.const_smul₀ -> MeasurableSet.const_smul₀ is a dubious translation:
-lean 3 declaration is
-  forall {G₀ : Type.{u1}} {α : Type.{u2}} [_inst_1 : GroupWithZero.{u1} G₀] [_inst_2 : Zero.{u2} α] [_inst_3 : MulActionWithZero.{u1, u2} G₀ α (GroupWithZero.toMonoidWithZero.{u1} G₀ _inst_1) _inst_2] [_inst_4 : MeasurableSpace.{u1} G₀] [_inst_5 : MeasurableSpace.{u2} α] [_inst_6 : MeasurableSMul.{u1, u2} G₀ α (SMulZeroClass.toHasSmul.{u1, u2} G₀ α _inst_2 (SMulWithZero.toSmulZeroClass.{u1, u2} G₀ α (MulZeroClass.toHasZero.{u1} G₀ (MulZeroOneClass.toMulZeroClass.{u1} G₀ (MonoidWithZero.toMulZeroOneClass.{u1} G₀ (GroupWithZero.toMonoidWithZero.{u1} G₀ _inst_1)))) _inst_2 (MulActionWithZero.toSMulWithZero.{u1, u2} G₀ α (GroupWithZero.toMonoidWithZero.{u1} G₀ _inst_1) _inst_2 _inst_3))) _inst_4 _inst_5] [_inst_7 : MeasurableSingletonClass.{u2} α _inst_5] {s : Set.{u2} α}, (MeasurableSet.{u2} α _inst_5 s) -> (forall (a : G₀), MeasurableSet.{u2} α _inst_5 (SMul.smul.{u1, u2} G₀ (Set.{u2} α) (Set.smulSet.{u1, u2} G₀ α (SMulZeroClass.toHasSmul.{u1, u2} G₀ α _inst_2 (SMulWithZero.toSmulZeroClass.{u1, u2} G₀ α (MulZeroClass.toHasZero.{u1} G₀ (MulZeroOneClass.toMulZeroClass.{u1} G₀ (MonoidWithZero.toMulZeroOneClass.{u1} G₀ (GroupWithZero.toMonoidWithZero.{u1} G₀ _inst_1)))) _inst_2 (MulActionWithZero.toSMulWithZero.{u1, u2} G₀ α (GroupWithZero.toMonoidWithZero.{u1} G₀ _inst_1) _inst_2 _inst_3)))) a s))
-but is expected to have type
-  forall {G₀ : Type.{u2}} {α : Type.{u1}} [_inst_1 : GroupWithZero.{u2} G₀] [_inst_2 : Zero.{u1} α] [_inst_3 : MulActionWithZero.{u2, u1} G₀ α (GroupWithZero.toMonoidWithZero.{u2} G₀ _inst_1) _inst_2] [_inst_4 : MeasurableSpace.{u2} G₀] [_inst_5 : MeasurableSpace.{u1} α] [_inst_6 : MeasurableSMul.{u2, u1} G₀ α (SMulZeroClass.toSMul.{u2, u1} G₀ α _inst_2 (SMulWithZero.toSMulZeroClass.{u2, u1} G₀ α (MonoidWithZero.toZero.{u2} G₀ (GroupWithZero.toMonoidWithZero.{u2} G₀ _inst_1)) _inst_2 (MulActionWithZero.toSMulWithZero.{u2, u1} G₀ α (GroupWithZero.toMonoidWithZero.{u2} G₀ _inst_1) _inst_2 _inst_3))) _inst_4 _inst_5] [_inst_7 : MeasurableSingletonClass.{u1} α _inst_5] {s : Set.{u1} α}, (MeasurableSet.{u1} α _inst_5 s) -> (forall (a : G₀), MeasurableSet.{u1} α _inst_5 (HSMul.hSMul.{u2, u1, u1} G₀ (Set.{u1} α) (Set.{u1} α) (instHSMul.{u2, u1} G₀ (Set.{u1} α) (Set.smulSet.{u2, u1} G₀ α (SMulZeroClass.toSMul.{u2, u1} G₀ α _inst_2 (SMulWithZero.toSMulZeroClass.{u2, u1} G₀ α (MonoidWithZero.toZero.{u2} G₀ (GroupWithZero.toMonoidWithZero.{u2} G₀ _inst_1)) _inst_2 (MulActionWithZero.toSMulWithZero.{u2, u1} G₀ α (GroupWithZero.toMonoidWithZero.{u2} G₀ _inst_1) _inst_2 _inst_3))))) a s))
-Case conversion may be inaccurate. Consider using '#align measurable_set.const_smul₀ MeasurableSet.const_smul₀ₓ'. -/
 theorem MeasurableSet.const_smul₀ {G₀ α : Type _} [GroupWithZero G₀] [Zero α]
     [MulActionWithZero G₀ α] [MeasurableSpace G₀] [MeasurableSpace α] [MeasurableSMul G₀ α]
     [MeasurableSingletonClass α] {s : Set α} (hs : MeasurableSet s) (a : G₀) :

bd15ff41

bump to nightly-2023-05-13-02

mathlib commit https://github.com/leanprover-community/mathlib/commit/403190b5419b3f03f1a2893ad9352ca7f7d8bff6

d312d6d5

Diff

@@ -4,7 +4,7 @@ Released under Apache 2.0 license as described in the file LICENSE.
 Authors: Yury G. Kudryashov, Alex J. Best
 
 ! This file was ported from Lean 3 source module measure_theory.group.pointwise
-! leanprover-community/mathlib commit 66f7114a1d5cba41c47d417a034bbb2e96cf564a
+! leanprover-community/mathlib commit bd15ff41b70f5e2cc210f26f25a8d5c53b20d3de
 ! Please do not edit these lines, except to modify the commit id
 ! if you have ported upstream changes.
 -/
@@ -13,6 +13,9 @@ import Mathbin.MeasureTheory.Group.Arithmetic
 /-!
 # Pointwise set operations on `measurable_set`s
 
+> THIS FILE IS SYNCHRONIZED WITH MATHLIB4.
+> Any changes to this file require a corresponding PR to mathlib4.
+
 In this file we prove several versions of the following fact: if `s` is a measurable set, then so is
 `a • s`. Note that the pointwise product of two measurable sets need not be measurable, so there is
 no `measurable_set.mul` etc.

66f7114a

bump to nightly-2023-05-11-12

mathlib commit https://github.com/leanprover-community/mathlib/commit/28b2a92f2996d28e580450863c130955de0ed398

a36e0ba2

Diff

@@ -23,6 +23,12 @@ open Pointwise
 
 open Set
 
+/- warning: measurable_set.const_smul -> MeasurableSet.const_smul is a dubious translation:
+lean 3 declaration is
+  forall {G : Type.{u1}} {α : Type.{u2}} [_inst_1 : Group.{u1} G] [_inst_2 : MulAction.{u1, u2} G α (DivInvMonoid.toMonoid.{u1} G (Group.toDivInvMonoid.{u1} G _inst_1))] [_inst_3 : MeasurableSpace.{u1} G] [_inst_4 : MeasurableSpace.{u2} α] [_inst_5 : MeasurableSMul.{u1, u2} G α (MulAction.toHasSmul.{u1, u2} G α (DivInvMonoid.toMonoid.{u1} G (Group.toDivInvMonoid.{u1} G _inst_1)) _inst_2) _inst_3 _inst_4] {s : Set.{u2} α}, (MeasurableSet.{u2} α _inst_4 s) -> (forall (a : G), MeasurableSet.{u2} α _inst_4 (SMul.smul.{u1, u2} G (Set.{u2} α) (Set.smulSet.{u1, u2} G α (MulAction.toHasSmul.{u1, u2} G α (DivInvMonoid.toMonoid.{u1} G (Group.toDivInvMonoid.{u1} G _inst_1)) _inst_2)) a s))
+but is expected to have type
+  forall {G : Type.{u2}} {α : Type.{u1}} [_inst_1 : Group.{u2} G] [_inst_2 : MulAction.{u2, u1} G α (DivInvMonoid.toMonoid.{u2} G (Group.toDivInvMonoid.{u2} G _inst_1))] [_inst_3 : MeasurableSpace.{u2} G] [_inst_4 : MeasurableSpace.{u1} α] [_inst_5 : MeasurableSMul.{u2, u1} G α (MulAction.toSMul.{u2, u1} G α (DivInvMonoid.toMonoid.{u2} G (Group.toDivInvMonoid.{u2} G _inst_1)) _inst_2) _inst_3 _inst_4] {s : Set.{u1} α}, (MeasurableSet.{u1} α _inst_4 s) -> (forall (a : G), MeasurableSet.{u1} α _inst_4 (HSMul.hSMul.{u2, u1, u1} G (Set.{u1} α) (Set.{u1} α) (instHSMul.{u2, u1} G (Set.{u1} α) (Set.smulSet.{u2, u1} G α (MulAction.toSMul.{u2, u1} G α (DivInvMonoid.toMonoid.{u2} G (Group.toDivInvMonoid.{u2} G _inst_1)) _inst_2))) a s))
+Case conversion may be inaccurate. Consider using '#align measurable_set.const_smul MeasurableSet.const_smulₓ'. -/
 @[to_additive]
 theorem MeasurableSet.const_smul {G α : Type _} [Group G] [MulAction G α] [MeasurableSpace G]
     [MeasurableSpace α] [MeasurableSMul G α] {s : Set α} (hs : MeasurableSet s) (a : G) :
@@ -32,6 +38,12 @@ theorem MeasurableSet.const_smul {G α : Type _} [Group G] [MulAction G α] [Mea
 #align measurable_set.const_smul MeasurableSet.const_smul
 #align measurable_set.const_vadd MeasurableSet.const_vadd
 
+/- warning: measurable_set.const_smul_of_ne_zero -> MeasurableSet.const_smul_of_ne_zero is a dubious translation:
+lean 3 declaration is
+  forall {G₀ : Type.{u1}} {α : Type.{u2}} [_inst_1 : GroupWithZero.{u1} G₀] [_inst_2 : MulAction.{u1, u2} G₀ α (MonoidWithZero.toMonoid.{u1} G₀ (GroupWithZero.toMonoidWithZero.{u1} G₀ _inst_1))] [_inst_3 : MeasurableSpace.{u1} G₀] [_inst_4 : MeasurableSpace.{u2} α] [_inst_5 : MeasurableSMul.{u1, u2} G₀ α (MulAction.toHasSmul.{u1, u2} G₀ α (MonoidWithZero.toMonoid.{u1} G₀ (GroupWithZero.toMonoidWithZero.{u1} G₀ _inst_1)) _inst_2) _inst_3 _inst_4] {s : Set.{u2} α}, (MeasurableSet.{u2} α _inst_4 s) -> (forall {a : G₀}, (Ne.{succ u1} G₀ a (OfNat.ofNat.{u1} G₀ 0 (OfNat.mk.{u1} G₀ 0 (Zero.zero.{u1} G₀ (MulZeroClass.toHasZero.{u1} G₀ (MulZeroOneClass.toMulZeroClass.{u1} G₀ (MonoidWithZero.toMulZeroOneClass.{u1} G₀ (GroupWithZero.toMonoidWithZero.{u1} G₀ _inst_1)))))))) -> (MeasurableSet.{u2} α _inst_4 (SMul.smul.{u1, u2} G₀ (Set.{u2} α) (Set.smulSet.{u1, u2} G₀ α (MulAction.toHasSmul.{u1, u2} G₀ α (MonoidWithZero.toMonoid.{u1} G₀ (GroupWithZero.toMonoidWithZero.{u1} G₀ _inst_1)) _inst_2)) a s)))
+but is expected to have type
+  forall {G₀ : Type.{u2}} {α : Type.{u1}} [_inst_1 : GroupWithZero.{u2} G₀] [_inst_2 : MulAction.{u2, u1} G₀ α (MonoidWithZero.toMonoid.{u2} G₀ (GroupWithZero.toMonoidWithZero.{u2} G₀ _inst_1))] [_inst_3 : MeasurableSpace.{u2} G₀] [_inst_4 : MeasurableSpace.{u1} α] [_inst_5 : MeasurableSMul.{u2, u1} G₀ α (MulAction.toSMul.{u2, u1} G₀ α (MonoidWithZero.toMonoid.{u2} G₀ (GroupWithZero.toMonoidWithZero.{u2} G₀ _inst_1)) _inst_2) _inst_3 _inst_4] {s : Set.{u1} α}, (MeasurableSet.{u1} α _inst_4 s) -> (forall {a : G₀}, (Ne.{succ u2} G₀ a (OfNat.ofNat.{u2} G₀ 0 (Zero.toOfNat0.{u2} G₀ (MonoidWithZero.toZero.{u2} G₀ (GroupWithZero.toMonoidWithZero.{u2} G₀ _inst_1))))) -> (MeasurableSet.{u1} α _inst_4 (HSMul.hSMul.{u2, u1, u1} G₀ (Set.{u1} α) (Set.{u1} α) (instHSMul.{u2, u1} G₀ (Set.{u1} α) (Set.smulSet.{u2, u1} G₀ α (MulAction.toSMul.{u2, u1} G₀ α (MonoidWithZero.toMonoid.{u2} G₀ (GroupWithZero.toMonoidWithZero.{u2} G₀ _inst_1)) _inst_2))) a s)))
+Case conversion may be inaccurate. Consider using '#align measurable_set.const_smul_of_ne_zero MeasurableSet.const_smul_of_ne_zeroₓ'. -/
 theorem MeasurableSet.const_smul_of_ne_zero {G₀ α : Type _} [GroupWithZero G₀] [MulAction G₀ α]
     [MeasurableSpace G₀] [MeasurableSpace α] [MeasurableSMul G₀ α] {s : Set α}
     (hs : MeasurableSet s) {a : G₀} (ha : a ≠ 0) : MeasurableSet (a • s) :=
@@ -40,6 +52,12 @@ theorem MeasurableSet.const_smul_of_ne_zero {G₀ α : Type _} [GroupWithZero G
   exact measurable_const_smul _ hs
 #align measurable_set.const_smul_of_ne_zero MeasurableSet.const_smul_of_ne_zero
 
+/- warning: measurable_set.const_smul₀ -> MeasurableSet.const_smul₀ is a dubious translation:
+lean 3 declaration is
+  forall {G₀ : Type.{u1}} {α : Type.{u2}} [_inst_1 : GroupWithZero.{u1} G₀] [_inst_2 : Zero.{u2} α] [_inst_3 : MulActionWithZero.{u1, u2} G₀ α (GroupWithZero.toMonoidWithZero.{u1} G₀ _inst_1) _inst_2] [_inst_4 : MeasurableSpace.{u1} G₀] [_inst_5 : MeasurableSpace.{u2} α] [_inst_6 : MeasurableSMul.{u1, u2} G₀ α (SMulZeroClass.toHasSmul.{u1, u2} G₀ α _inst_2 (SMulWithZero.toSmulZeroClass.{u1, u2} G₀ α (MulZeroClass.toHasZero.{u1} G₀ (MulZeroOneClass.toMulZeroClass.{u1} G₀ (MonoidWithZero.toMulZeroOneClass.{u1} G₀ (GroupWithZero.toMonoidWithZero.{u1} G₀ _inst_1)))) _inst_2 (MulActionWithZero.toSMulWithZero.{u1, u2} G₀ α (GroupWithZero.toMonoidWithZero.{u1} G₀ _inst_1) _inst_2 _inst_3))) _inst_4 _inst_5] [_inst_7 : MeasurableSingletonClass.{u2} α _inst_5] {s : Set.{u2} α}, (MeasurableSet.{u2} α _inst_5 s) -> (forall (a : G₀), MeasurableSet.{u2} α _inst_5 (SMul.smul.{u1, u2} G₀ (Set.{u2} α) (Set.smulSet.{u1, u2} G₀ α (SMulZeroClass.toHasSmul.{u1, u2} G₀ α _inst_2 (SMulWithZero.toSmulZeroClass.{u1, u2} G₀ α (MulZeroClass.toHasZero.{u1} G₀ (MulZeroOneClass.toMulZeroClass.{u1} G₀ (MonoidWithZero.toMulZeroOneClass.{u1} G₀ (GroupWithZero.toMonoidWithZero.{u1} G₀ _inst_1)))) _inst_2 (MulActionWithZero.toSMulWithZero.{u1, u2} G₀ α (GroupWithZero.toMonoidWithZero.{u1} G₀ _inst_1) _inst_2 _inst_3)))) a s))
+but is expected to have type
+  forall {G₀ : Type.{u2}} {α : Type.{u1}} [_inst_1 : GroupWithZero.{u2} G₀] [_inst_2 : Zero.{u1} α] [_inst_3 : MulActionWithZero.{u2, u1} G₀ α (GroupWithZero.toMonoidWithZero.{u2} G₀ _inst_1) _inst_2] [_inst_4 : MeasurableSpace.{u2} G₀] [_inst_5 : MeasurableSpace.{u1} α] [_inst_6 : MeasurableSMul.{u2, u1} G₀ α (SMulZeroClass.toSMul.{u2, u1} G₀ α _inst_2 (SMulWithZero.toSMulZeroClass.{u2, u1} G₀ α (MonoidWithZero.toZero.{u2} G₀ (GroupWithZero.toMonoidWithZero.{u2} G₀ _inst_1)) _inst_2 (MulActionWithZero.toSMulWithZero.{u2, u1} G₀ α (GroupWithZero.toMonoidWithZero.{u2} G₀ _inst_1) _inst_2 _inst_3))) _inst_4 _inst_5] [_inst_7 : MeasurableSingletonClass.{u1} α _inst_5] {s : Set.{u1} α}, (MeasurableSet.{u1} α _inst_5 s) -> (forall (a : G₀), MeasurableSet.{u1} α _inst_5 (HSMul.hSMul.{u2, u1, u1} G₀ (Set.{u1} α) (Set.{u1} α) (instHSMul.{u2, u1} G₀ (Set.{u1} α) (Set.smulSet.{u2, u1} G₀ α (SMulZeroClass.toSMul.{u2, u1} G₀ α _inst_2 (SMulWithZero.toSMulZeroClass.{u2, u1} G₀ α (MonoidWithZero.toZero.{u2} G₀ (GroupWithZero.toMonoidWithZero.{u2} G₀ _inst_1)) _inst_2 (MulActionWithZero.toSMulWithZero.{u2, u1} G₀ α (GroupWithZero.toMonoidWithZero.{u2} G₀ _inst_1) _inst_2 _inst_3))))) a s))
+Case conversion may be inaccurate. Consider using '#align measurable_set.const_smul₀ MeasurableSet.const_smul₀ₓ'. -/
 theorem MeasurableSet.const_smul₀ {G₀ α : Type _} [GroupWithZero G₀] [Zero α]
     [MulActionWithZero G₀ α] [MeasurableSpace G₀] [MeasurableSpace α] [MeasurableSMul G₀ α]
     [MeasurableSingletonClass α] {s : Set α} (hs : MeasurableSet s) (a : G₀) :

66f7114a

bump to nightly-2023-05-10-10

mathlib commit https://github.com/leanprover-community/mathlib/commit/cc5dd6244981976cc9da7afc4eee5682b037a013

d51144ae

Diff

@@ -25,7 +25,7 @@ open Set
 
 @[to_additive]
 theorem MeasurableSet.const_smul {G α : Type _} [Group G] [MulAction G α] [MeasurableSpace G]
-    [MeasurableSpace α] [HasMeasurableSmul G α] {s : Set α} (hs : MeasurableSet s) (a : G) :
+    [MeasurableSpace α] [MeasurableSMul G α] {s : Set α} (hs : MeasurableSet s) (a : G) :
     MeasurableSet (a • s) := by
   rw [← preimage_smul_inv]
   exact measurable_const_smul _ hs
@@ -33,7 +33,7 @@ theorem MeasurableSet.const_smul {G α : Type _} [Group G] [MulAction G α] [Mea
 #align measurable_set.const_vadd MeasurableSet.const_vadd
 
 theorem MeasurableSet.const_smul_of_ne_zero {G₀ α : Type _} [GroupWithZero G₀] [MulAction G₀ α]
-    [MeasurableSpace G₀] [MeasurableSpace α] [HasMeasurableSmul G₀ α] {s : Set α}
+    [MeasurableSpace G₀] [MeasurableSpace α] [MeasurableSMul G₀ α] {s : Set α}
     (hs : MeasurableSet s) {a : G₀} (ha : a ≠ 0) : MeasurableSet (a • s) :=
   by
   rw [← preimage_smul_inv₀ ha]
@@ -41,7 +41,7 @@ theorem MeasurableSet.const_smul_of_ne_zero {G₀ α : Type _} [GroupWithZero G
 #align measurable_set.const_smul_of_ne_zero MeasurableSet.const_smul_of_ne_zero
 
 theorem MeasurableSet.const_smul₀ {G₀ α : Type _} [GroupWithZero G₀] [Zero α]
-    [MulActionWithZero G₀ α] [MeasurableSpace G₀] [MeasurableSpace α] [HasMeasurableSmul G₀ α]
+    [MulActionWithZero G₀ α] [MeasurableSpace G₀] [MeasurableSpace α] [MeasurableSMul G₀ α]
     [MeasurableSingletonClass α] {s : Set α} (hs : MeasurableSet s) (a : G₀) :
     MeasurableSet (a • s) := by
   rcases eq_or_ne a 0 with (rfl | ha)

66f7114a

bump to nightly-2023-02-21-16

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

1107b979

Changes in mathlib4

mathlib3

mathlib4

66f7114a

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

@@ -21,7 +21,7 @@ open Pointwise
 open Set
 
 @[to_additive]
-theorem MeasurableSet.const_smul {G α : Type _} [Group G] [MulAction G α] [MeasurableSpace G]
+theorem MeasurableSet.const_smul {G α : Type*} [Group G] [MulAction G α] [MeasurableSpace G]
     [MeasurableSpace α] [MeasurableSMul G α] {s : Set α} (hs : MeasurableSet s) (a : G) :
     MeasurableSet (a • s) := by
   rw [← preimage_smul_inv]
@@ -29,14 +29,14 @@ theorem MeasurableSet.const_smul {G α : Type _} [Group G] [MulAction G α] [Mea
 #align measurable_set.const_smul MeasurableSet.const_smul
 #align measurable_set.const_vadd MeasurableSet.const_vadd
 
-theorem MeasurableSet.const_smul_of_ne_zero {G₀ α : Type _} [GroupWithZero G₀] [MulAction G₀ α]
+theorem MeasurableSet.const_smul_of_ne_zero {G₀ α : Type*} [GroupWithZero G₀] [MulAction G₀ α]
     [MeasurableSpace G₀] [MeasurableSpace α] [MeasurableSMul G₀ α] {s : Set α}
     (hs : MeasurableSet s) {a : G₀} (ha : a ≠ 0) : MeasurableSet (a • s) := by
   rw [← preimage_smul_inv₀ ha]
   exact measurable_const_smul _ hs
 #align measurable_set.const_smul_of_ne_zero MeasurableSet.const_smul_of_ne_zero
 
-theorem MeasurableSet.const_smul₀ {G₀ α : Type _} [GroupWithZero G₀] [Zero α]
+theorem MeasurableSet.const_smul₀ {G₀ α : Type*} [GroupWithZero G₀] [Zero α]
     [MulActionWithZero G₀ α] [MeasurableSpace G₀] [MeasurableSpace α] [MeasurableSMul G₀ α]
     [MeasurableSingletonClass α] {s : Set α} (hs : MeasurableSet s) (a : G₀) :
     MeasurableSet (a • s) := by

66f7114a

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) 2021 Yury G. Kudryashov. All rights reserved.
 Released under Apache 2.0 license as described in the file LICENSE.
 Authors: Yury G. Kudryashov, Alex J. Best
-
-! This file was ported from Lean 3 source module measure_theory.group.pointwise
-! leanprover-community/mathlib commit 66f7114a1d5cba41c47d417a034bbb2e96cf564a
-! Please do not edit these lines, except to modify the commit id
-! if you have ported upstream changes.
 -/
 import Mathlib.MeasureTheory.Group.Arithmetic
 
+#align_import measure_theory.group.pointwise from "leanprover-community/mathlib"@"66f7114a1d5cba41c47d417a034bbb2e96cf564a"
+
 /-!
 # Pointwise set operations on `MeasurableSet`s

66f7114a

chore: add space after exacts (#4945)

Too often tempted to change these during other PRs, so doing a mass edit here.

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

bf799bb9

Diff

@@ -44,5 +44,5 @@ theorem MeasurableSet.const_smul₀ {G₀ α : Type _} [GroupWithZero G₀] [Zer
     [MeasurableSingletonClass α] {s : Set α} (hs : MeasurableSet s) (a : G₀) :
     MeasurableSet (a • s) := by
   rcases eq_or_ne a 0 with (rfl | ha)
-  exacts[(subsingleton_zero_smul_set s).measurableSet, hs.const_smul_of_ne_zero ha]
+  exacts [(subsingleton_zero_smul_set s).measurableSet, hs.const_smul_of_ne_zero ha]
 #align measurable_set.const_smul₀ MeasurableSet.const_smul₀

66f7114a

feat: port MeasureTheory.Group.Pointwise (#3914)

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

739f7dd5

`measure_theory.group.pointwise` ⟷ `Mathlib.MeasureTheory.Group.Pointwise`

Changes since the initial port

Changes in mathlib3

Changes in mathlib3port

Changes in mathlib4

Dependencies 10 + 611

measure_theory.group.pointwise ⟷ Mathlib.MeasureTheory.Group.Pointwise

Changes since the initial port

Changes in mathlib3

Changes in mathlib3port

Changes in mathlib4

Dependencies 10 + 611

`measure_theory.group.pointwise` ⟷ `Mathlib.MeasureTheory.Group.Pointwise`