topology.algebra.uniform_filter_basis | 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

531db2ef

(last sync)

Changes in mathlib3port

mathlib3

mathlib3port

19cb3751

bump to nightly-2024-04-06-08

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

e34029c9

Diff

@@ -46,8 +46,8 @@ protected theorem uniformAddGroup : @UniformAddGroup G B.UniformSpace _ :=
 #align add_group_filter_basis.uniform_add_group AddGroupFilterBasis.uniformAddGroup
 -/
 
-/- ./././Mathport/Syntax/Translate/Basic.lean:641:2: warning: expanding binder collection (x y «expr ∈ » M) -/
-/- ./././Mathport/Syntax/Translate/Basic.lean:641:2: warning: expanding binder collection (x y «expr ∈ » M) -/
+/- ./././Mathport/Syntax/Translate/Basic.lean:642:2: warning: expanding binder collection (x y «expr ∈ » M) -/
+/- ./././Mathport/Syntax/Translate/Basic.lean:642:2: warning: expanding binder collection (x y «expr ∈ » M) -/
 #print AddGroupFilterBasis.cauchy_iff /-
 theorem cauchy_iff {F : Filter G} :
     @Cauchy G B.UniformSpace F ↔

19cb3751

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) 2021 Patrick Massot. All rights reserved.
 Released under Apache 2.0 license as described in the file LICENSE.
 Authors: Patrick Massot
 -/
-import Mathbin.Topology.Algebra.FilterBasis
-import Mathbin.Topology.Algebra.UniformGroup
+import Topology.Algebra.FilterBasis
+import Topology.Algebra.UniformGroup
 
 #align_import topology.algebra.uniform_filter_basis from "leanprover-community/mathlib"@"19cb3751e5e9b3d97adb51023949c50c13b5fdfd"
 
@@ -46,8 +46,8 @@ protected theorem uniformAddGroup : @UniformAddGroup G B.UniformSpace _ :=
 #align add_group_filter_basis.uniform_add_group AddGroupFilterBasis.uniformAddGroup
 -/
 
-/- ./././Mathport/Syntax/Translate/Basic.lean:635:2: warning: expanding binder collection (x y «expr ∈ » M) -/
-/- ./././Mathport/Syntax/Translate/Basic.lean:635:2: warning: expanding binder collection (x y «expr ∈ » M) -/
+/- ./././Mathport/Syntax/Translate/Basic.lean:641:2: warning: expanding binder collection (x y «expr ∈ » M) -/
+/- ./././Mathport/Syntax/Translate/Basic.lean:641:2: warning: expanding binder collection (x y «expr ∈ » M) -/
 #print AddGroupFilterBasis.cauchy_iff /-
 theorem cauchy_iff {F : Filter G} :
     @Cauchy G B.UniformSpace F ↔

19cb3751

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) 2021 Patrick Massot. All rights reserved.
 Released under Apache 2.0 license as described in the file LICENSE.
 Authors: Patrick Massot
-
-! This file was ported from Lean 3 source module topology.algebra.uniform_filter_basis
-! leanprover-community/mathlib commit 19cb3751e5e9b3d97adb51023949c50c13b5fdfd
-! Please do not edit these lines, except to modify the commit id
-! if you have ported upstream changes.
 -/
 import Mathbin.Topology.Algebra.FilterBasis
 import Mathbin.Topology.Algebra.UniformGroup
 
+#align_import topology.algebra.uniform_filter_basis from "leanprover-community/mathlib"@"19cb3751e5e9b3d97adb51023949c50c13b5fdfd"
+
 /-!
 # Uniform properties of neighborhood bases in topological algebra
 
@@ -49,8 +46,8 @@ protected theorem uniformAddGroup : @UniformAddGroup G B.UniformSpace _ :=
 #align add_group_filter_basis.uniform_add_group AddGroupFilterBasis.uniformAddGroup
 -/
 
-/- ./././Mathport/Syntax/Translate/Basic.lean:638:2: warning: expanding binder collection (x y «expr ∈ » M) -/
-/- ./././Mathport/Syntax/Translate/Basic.lean:638:2: warning: expanding binder collection (x y «expr ∈ » M) -/
+/- ./././Mathport/Syntax/Translate/Basic.lean:635:2: warning: expanding binder collection (x y «expr ∈ » M) -/
+/- ./././Mathport/Syntax/Translate/Basic.lean:635:2: warning: expanding binder collection (x y «expr ∈ » M) -/
 #print AddGroupFilterBasis.cauchy_iff /-
 theorem cauchy_iff {F : Filter G} :
     @Cauchy G B.UniformSpace F ↔

19cb3751

bump to nightly-2023-06-13-21

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

829520ac

Diff

@@ -51,6 +51,7 @@ protected theorem uniformAddGroup : @UniformAddGroup G B.UniformSpace _ :=
 
 /- ./././Mathport/Syntax/Translate/Basic.lean:638:2: warning: expanding binder collection (x y «expr ∈ » M) -/
 /- ./././Mathport/Syntax/Translate/Basic.lean:638:2: warning: expanding binder collection (x y «expr ∈ » M) -/
+#print AddGroupFilterBasis.cauchy_iff /-
 theorem cauchy_iff {F : Filter G} :
     @Cauchy G B.UniformSpace F ↔
       F.ne_bot ∧ ∀ U ∈ B, ∃ M ∈ F, ∀ (x) (_ : x ∈ M) (y) (_ : y ∈ M), y - x ∈ U :=
@@ -63,6 +64,7 @@ theorem cauchy_iff {F : Filter G} :
   change tendsto _ _ _ ↔ _
   simp [(basis_sets F).prod_self.tendsto_iffₓ B.nhds_zero_has_basis, @forall_swap (_ ∈ _) G]
 #align add_group_filter_basis.cauchy_iff AddGroupFilterBasis.cauchy_iff
+-/
 
 end AddGroupFilterBasis

19cb3751

bump to nightly-2023-06-08-23

mathlib commit https://github.com/leanprover-community/mathlib/commit/31c24aa72e7b3e5ed97a8412470e904f82b81004

d3cfe2e3

Diff

@@ -49,8 +49,8 @@ protected theorem uniformAddGroup : @UniformAddGroup G B.UniformSpace _ :=
 #align add_group_filter_basis.uniform_add_group AddGroupFilterBasis.uniformAddGroup
 -/
 
-/- ./././Mathport/Syntax/Translate/Basic.lean:635:2: warning: expanding binder collection (x y «expr ∈ » M) -/
-/- ./././Mathport/Syntax/Translate/Basic.lean:635:2: warning: expanding binder collection (x y «expr ∈ » M) -/
+/- ./././Mathport/Syntax/Translate/Basic.lean:638:2: warning: expanding binder collection (x y «expr ∈ » M) -/
+/- ./././Mathport/Syntax/Translate/Basic.lean:638:2: warning: expanding binder collection (x y «expr ∈ » M) -/
 theorem cauchy_iff {F : Filter G} :
     @Cauchy G B.UniformSpace F ↔
       F.ne_bot ∧ ∀ U ∈ B, ∃ M ∈ F, ∀ (x) (_ : x ∈ M) (y) (_ : y ∈ M), y - x ∈ U :=

19cb3751

bump to nightly-2023-06-01-16

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

b9c87c70

Diff

@@ -58,7 +58,7 @@ theorem cauchy_iff {F : Filter G} :
   letI := B.uniform_space
   haveI := B.uniform_add_group
   suffices F ×ᶠ F ≤ 𝓤 G ↔ ∀ U ∈ B, ∃ M ∈ F, ∀ (x) (_ : x ∈ M) (y) (_ : y ∈ M), y - x ∈ U by
-    constructor <;> rintro ⟨h', h⟩ <;> refine' ⟨h', _⟩ <;> [rwa [← this];rwa [this]]
+    constructor <;> rintro ⟨h', h⟩ <;> refine' ⟨h', _⟩ <;> [rwa [← this]; rwa [this]]
   rw [uniformity_eq_comap_nhds_zero G, ← map_le_iff_le_comap]
   change tendsto _ _ _ ↔ _
   simp [(basis_sets F).prod_self.tendsto_iffₓ B.nhds_zero_has_basis, @forall_swap (_ ∈ _) G]

19cb3751

bump to nightly-2023-05-28-18

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

8d353152

Diff

@@ -25,7 +25,7 @@ The only result so far is a characterization of Cauchy filters in topological gr
 -/
 
 
-open uniformity Filter
+open scoped uniformity Filter
 
 open Filter

19cb3751

bump to nightly-2023-05-28-06

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

ba5d8b97

Diff

@@ -49,12 +49,6 @@ protected theorem uniformAddGroup : @UniformAddGroup G B.UniformSpace _ :=
 #align add_group_filter_basis.uniform_add_group AddGroupFilterBasis.uniformAddGroup
 -/
 
-/- warning: add_group_filter_basis.cauchy_iff -> AddGroupFilterBasis.cauchy_iff is a dubious translation:
-lean 3 declaration is
-  forall {G : Type.{u1}} [_inst_1 : AddCommGroup.{u1} G] (B : AddGroupFilterBasis.{u1} G (AddCommGroup.toAddGroup.{u1} G _inst_1)) {F : Filter.{u1} G}, Iff (Cauchy.{u1} G (AddGroupFilterBasis.uniformSpace.{u1} G _inst_1 B) F) (And (Filter.NeBot.{u1} G F) (forall (U : Set.{u1} G), (Membership.Mem.{u1, u1} (Set.{u1} G) (AddGroupFilterBasis.{u1} G (AddCommGroup.toAddGroup.{u1} G _inst_1)) (AddGroupFilterBasis.hasMem.{u1} G (AddCommGroup.toAddGroup.{u1} G _inst_1)) U B) -> (Exists.{succ u1} (Set.{u1} G) (fun (M : Set.{u1} G) => Exists.{0} (Membership.Mem.{u1, u1} (Set.{u1} G) (Filter.{u1} G) (Filter.hasMem.{u1} G) M F) (fun (H : Membership.Mem.{u1, u1} (Set.{u1} G) (Filter.{u1} G) (Filter.hasMem.{u1} G) M F) => forall (x : G), (Membership.Mem.{u1, u1} G (Set.{u1} G) (Set.hasMem.{u1} G) x M) -> (forall (y : G), (Membership.Mem.{u1, u1} G (Set.{u1} G) (Set.hasMem.{u1} G) y M) -> (Membership.Mem.{u1, u1} G (Set.{u1} G) (Set.hasMem.{u1} G) (HSub.hSub.{u1, u1, u1} G G G (instHSub.{u1} G (SubNegMonoid.toHasSub.{u1} G (AddGroup.toSubNegMonoid.{u1} G (AddCommGroup.toAddGroup.{u1} G _inst_1)))) y x) U)))))))
-but is expected to have type
-  forall {G : Type.{u1}} [_inst_1 : AddCommGroup.{u1} G] (B : AddGroupFilterBasis.{u1} G (AddCommGroup.toAddGroup.{u1} G _inst_1)) {F : Filter.{u1} G}, Iff (Cauchy.{u1} G (AddGroupFilterBasis.uniformSpace.{u1} G _inst_1 B) F) (And (Filter.NeBot.{u1} G F) (forall (U : Set.{u1} G), (Membership.mem.{u1, u1} (Set.{u1} G) (AddGroupFilterBasis.{u1} G (AddCommGroup.toAddGroup.{u1} G _inst_1)) (AddGroupFilterBasis.instMembershipSetAddGroupFilterBasis.{u1} G (AddCommGroup.toAddGroup.{u1} G _inst_1)) U B) -> (Exists.{succ u1} (Set.{u1} G) (fun (M : Set.{u1} G) => And (Membership.mem.{u1, u1} (Set.{u1} G) (Filter.{u1} G) (instMembershipSetFilter.{u1} G) M F) (forall (x : G), (Membership.mem.{u1, u1} G (Set.{u1} G) (Set.instMembershipSet.{u1} G) x M) -> (forall (y : G), (Membership.mem.{u1, u1} G (Set.{u1} G) (Set.instMembershipSet.{u1} G) y M) -> (Membership.mem.{u1, u1} G (Set.{u1} G) (Set.instMembershipSet.{u1} G) (HSub.hSub.{u1, u1, u1} G G G (instHSub.{u1} G (SubNegMonoid.toSub.{u1} G (AddGroup.toSubNegMonoid.{u1} G (AddCommGroup.toAddGroup.{u1} G _inst_1)))) y x) U)))))))
-Case conversion may be inaccurate. Consider using '#align add_group_filter_basis.cauchy_iff AddGroupFilterBasis.cauchy_iffₓ'. -/
 /- ./././Mathport/Syntax/Translate/Basic.lean:635:2: warning: expanding binder collection (x y «expr ∈ » M) -/
 /- ./././Mathport/Syntax/Translate/Basic.lean:635:2: warning: expanding binder collection (x y «expr ∈ » M) -/
 theorem cauchy_iff {F : Filter G} :

19cb3751

bump to nightly-2023-05-24-06

mathlib commit https://github.com/leanprover-community/mathlib/commit/8d33f09cd7089ecf074b4791907588245aec5d1b

fbc7b476

Diff

@@ -64,7 +64,7 @@ theorem cauchy_iff {F : Filter G} :
   letI := B.uniform_space
   haveI := B.uniform_add_group
   suffices F ×ᶠ F ≤ 𝓤 G ↔ ∀ U ∈ B, ∃ M ∈ F, ∀ (x) (_ : x ∈ M) (y) (_ : y ∈ M), y - x ∈ U by
-    constructor <;> rintro ⟨h', h⟩ <;> refine' ⟨h', _⟩ <;> [rwa [← this], rwa [this]]
+    constructor <;> rintro ⟨h', h⟩ <;> refine' ⟨h', _⟩ <;> [rwa [← this];rwa [this]]
   rw [uniformity_eq_comap_nhds_zero G, ← map_le_iff_le_comap]
   change tendsto _ _ _ ↔ _
   simp [(basis_sets F).prod_self.tendsto_iffₓ B.nhds_zero_has_basis, @forall_swap (_ ∈ _) G]

19cb3751

bump to nightly-2023-04-09-02

mathlib commit https://github.com/leanprover-community/mathlib/commit/284fdd2962e67d2932fa3a79ce19fcf92d38e228

32290448

Diff

@@ -4,7 +4,7 @@ Released under Apache 2.0 license as described in the file LICENSE.
 Authors: Patrick Massot
 
 ! This file was ported from Lean 3 source module topology.algebra.uniform_filter_basis
-! leanprover-community/mathlib commit 531db2ef0fdddf8b3c8dcdcd87138fe969e1a81a
+! leanprover-community/mathlib commit 19cb3751e5e9b3d97adb51023949c50c13b5fdfd
 ! Please do not edit these lines, except to modify the commit id
 ! if you have ported upstream changes.
 -/
@@ -14,6 +14,9 @@ import Mathbin.Topology.Algebra.UniformGroup
 /-!
 # Uniform properties of neighborhood bases in topological algebra
 
+> THIS FILE IS SYNCHRONIZED WITH MATHLIB4.
+> Any changes to this file require a corresponding PR to mathlib4.
+
 This files contains properties of filter bases on algebraic structures that also require the theory
 of uniform spaces.

531db2ef

bump to nightly-2023-04-06-18

mathlib commit https://github.com/leanprover-community/mathlib/commit/06a655b5fcfbda03502f9158bbf6c0f1400886f9

2687d71c

Diff

@@ -30,18 +30,28 @@ namespace AddGroupFilterBasis
 
 variable {G : Type _} [AddCommGroup G] (B : AddGroupFilterBasis G)
 
+#print AddGroupFilterBasis.uniformSpace /-
 /-- The uniform space structure associated to an abelian group filter basis via the associated
 topological abelian group structure. -/
 protected def uniformSpace : UniformSpace G :=
   @TopologicalAddGroup.toUniformSpace G _ B.topology B.isTopologicalAddGroup
 #align add_group_filter_basis.uniform_space AddGroupFilterBasis.uniformSpace
+-/
 
+#print AddGroupFilterBasis.uniformAddGroup /-
 /-- The uniform space structure associated to an abelian group filter basis via the associated
 topological abelian group structure is compatible with its group structure. -/
 protected theorem uniformAddGroup : @UniformAddGroup G B.UniformSpace _ :=
   @comm_topologicalAddGroup_is_uniform G _ B.topology B.isTopologicalAddGroup
 #align add_group_filter_basis.uniform_add_group AddGroupFilterBasis.uniformAddGroup
+-/
 
+/- warning: add_group_filter_basis.cauchy_iff -> AddGroupFilterBasis.cauchy_iff is a dubious translation:
+lean 3 declaration is
+  forall {G : Type.{u1}} [_inst_1 : AddCommGroup.{u1} G] (B : AddGroupFilterBasis.{u1} G (AddCommGroup.toAddGroup.{u1} G _inst_1)) {F : Filter.{u1} G}, Iff (Cauchy.{u1} G (AddGroupFilterBasis.uniformSpace.{u1} G _inst_1 B) F) (And (Filter.NeBot.{u1} G F) (forall (U : Set.{u1} G), (Membership.Mem.{u1, u1} (Set.{u1} G) (AddGroupFilterBasis.{u1} G (AddCommGroup.toAddGroup.{u1} G _inst_1)) (AddGroupFilterBasis.hasMem.{u1} G (AddCommGroup.toAddGroup.{u1} G _inst_1)) U B) -> (Exists.{succ u1} (Set.{u1} G) (fun (M : Set.{u1} G) => Exists.{0} (Membership.Mem.{u1, u1} (Set.{u1} G) (Filter.{u1} G) (Filter.hasMem.{u1} G) M F) (fun (H : Membership.Mem.{u1, u1} (Set.{u1} G) (Filter.{u1} G) (Filter.hasMem.{u1} G) M F) => forall (x : G), (Membership.Mem.{u1, u1} G (Set.{u1} G) (Set.hasMem.{u1} G) x M) -> (forall (y : G), (Membership.Mem.{u1, u1} G (Set.{u1} G) (Set.hasMem.{u1} G) y M) -> (Membership.Mem.{u1, u1} G (Set.{u1} G) (Set.hasMem.{u1} G) (HSub.hSub.{u1, u1, u1} G G G (instHSub.{u1} G (SubNegMonoid.toHasSub.{u1} G (AddGroup.toSubNegMonoid.{u1} G (AddCommGroup.toAddGroup.{u1} G _inst_1)))) y x) U)))))))
+but is expected to have type
+  forall {G : Type.{u1}} [_inst_1 : AddCommGroup.{u1} G] (B : AddGroupFilterBasis.{u1} G (AddCommGroup.toAddGroup.{u1} G _inst_1)) {F : Filter.{u1} G}, Iff (Cauchy.{u1} G (AddGroupFilterBasis.uniformSpace.{u1} G _inst_1 B) F) (And (Filter.NeBot.{u1} G F) (forall (U : Set.{u1} G), (Membership.mem.{u1, u1} (Set.{u1} G) (AddGroupFilterBasis.{u1} G (AddCommGroup.toAddGroup.{u1} G _inst_1)) (AddGroupFilterBasis.instMembershipSetAddGroupFilterBasis.{u1} G (AddCommGroup.toAddGroup.{u1} G _inst_1)) U B) -> (Exists.{succ u1} (Set.{u1} G) (fun (M : Set.{u1} G) => And (Membership.mem.{u1, u1} (Set.{u1} G) (Filter.{u1} G) (instMembershipSetFilter.{u1} G) M F) (forall (x : G), (Membership.mem.{u1, u1} G (Set.{u1} G) (Set.instMembershipSet.{u1} G) x M) -> (forall (y : G), (Membership.mem.{u1, u1} G (Set.{u1} G) (Set.instMembershipSet.{u1} G) y M) -> (Membership.mem.{u1, u1} G (Set.{u1} G) (Set.instMembershipSet.{u1} G) (HSub.hSub.{u1, u1, u1} G G G (instHSub.{u1} G (SubNegMonoid.toSub.{u1} G (AddGroup.toSubNegMonoid.{u1} G (AddCommGroup.toAddGroup.{u1} G _inst_1)))) y x) U)))))))
+Case conversion may be inaccurate. Consider using '#align add_group_filter_basis.cauchy_iff AddGroupFilterBasis.cauchy_iffₓ'. -/
 /- ./././Mathport/Syntax/Translate/Basic.lean:635:2: warning: expanding binder collection (x y «expr ∈ » M) -/
 /- ./././Mathport/Syntax/Translate/Basic.lean:635:2: warning: expanding binder collection (x y «expr ∈ » M) -/
 theorem cauchy_iff {F : Filter G} :

531db2ef

bump to nightly-2023-04-06-10

mathlib commit https://github.com/leanprover-community/mathlib/commit/06a655b5fcfbda03502f9158bbf6c0f1400886f9

678d4ff3

Diff

@@ -33,13 +33,13 @@ variable {G : Type _} [AddCommGroup G] (B : AddGroupFilterBasis G)
 /-- The uniform space structure associated to an abelian group filter basis via the associated
 topological abelian group structure. -/
 protected def uniformSpace : UniformSpace G :=
-  @TopologicalAddGroup.toUniformSpace G _ B.topology B.is_topological_add_group
+  @TopologicalAddGroup.toUniformSpace G _ B.topology B.isTopologicalAddGroup
 #align add_group_filter_basis.uniform_space AddGroupFilterBasis.uniformSpace
 
 /-- The uniform space structure associated to an abelian group filter basis via the associated
 topological abelian group structure is compatible with its group structure. -/
 protected theorem uniformAddGroup : @UniformAddGroup G B.UniformSpace _ :=
-  @comm_topologicalAddGroup_is_uniform G _ B.topology B.is_topological_add_group
+  @comm_topologicalAddGroup_is_uniform G _ B.topology B.isTopologicalAddGroup
 #align add_group_filter_basis.uniform_add_group AddGroupFilterBasis.uniformAddGroup
 
 /- ./././Mathport/Syntax/Translate/Basic.lean:635:2: warning: expanding binder collection (x y «expr ∈ » M) -/

531db2ef

bump to nightly-2023-03-01-20

mathlib commit https://github.com/leanprover-community/mathlib/commit/4c586d291f189eecb9d00581aeb3dd998ac34442

20cadee0

Diff

@@ -42,8 +42,8 @@ protected theorem uniformAddGroup : @UniformAddGroup G B.UniformSpace _ :=
   @comm_topologicalAddGroup_is_uniform G _ B.topology B.is_topological_add_group
 #align add_group_filter_basis.uniform_add_group AddGroupFilterBasis.uniformAddGroup
 
-/- ./././Mathport/Syntax/Translate/Basic.lean:628:2: warning: expanding binder collection (x y «expr ∈ » M) -/
-/- ./././Mathport/Syntax/Translate/Basic.lean:628:2: warning: expanding binder collection (x y «expr ∈ » M) -/
+/- ./././Mathport/Syntax/Translate/Basic.lean:635:2: warning: expanding binder collection (x y «expr ∈ » M) -/
+/- ./././Mathport/Syntax/Translate/Basic.lean:635:2: warning: expanding binder collection (x y «expr ∈ » M) -/
 theorem cauchy_iff {F : Filter G} :
     @Cauchy G B.UniformSpace F ↔
       F.ne_bot ∧ ∀ U ∈ B, ∃ M ∈ F, ∀ (x) (_ : x ∈ M) (y) (_ : y ∈ M), y - x ∈ U :=

531db2ef

bump to nightly-2023-02-27-16

mathlib commit https://github.com/leanprover-community/mathlib/commit/eb0cb4511aaef0da2462207b67358a0e1fe1e2ee

feafc24f

Diff

@@ -39,7 +39,7 @@ protected def uniformSpace : UniformSpace G :=
 /-- The uniform space structure associated to an abelian group filter basis via the associated
 topological abelian group structure is compatible with its group structure. -/
 protected theorem uniformAddGroup : @UniformAddGroup G B.UniformSpace _ :=
-  @topological_add_commGroup_is_uniform G _ B.topology B.is_topological_add_group
+  @comm_topologicalAddGroup_is_uniform G _ B.topology B.is_topological_add_group
 #align add_group_filter_basis.uniform_add_group AddGroupFilterBasis.uniformAddGroup
 
 /- ./././Mathport/Syntax/Translate/Basic.lean:628:2: warning: expanding binder collection (x y «expr ∈ » M) -/

531db2ef

bump to nightly-2023-02-21-16

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

1107b979

Changes in mathlib4

mathlib3

mathlib4

531db2ef

chore(*): use ∃ x ∈ s, _ instead of ∃ (x) (_ : x ∈ s), _ (#9184)

Search for [∀∃].*(_ and manually replace some occurrences with more readable versions. In case of ∀, the new expressions are defeq to the old ones. In case of ∃, they differ by exists_prop.

In some rare cases, golf proofs that needed fixing.

14c72960

Diff

@@ -41,10 +41,10 @@ protected theorem uniformAddGroup : @UniformAddGroup G B.uniformSpace _ :=
 
 theorem cauchy_iff {F : Filter G} :
     @Cauchy G B.uniformSpace F ↔
-      F.NeBot ∧ ∀ U ∈ B, ∃ M ∈ F, ∀ (x) (_ : x ∈ M) (y) (_ : y ∈ M), y - x ∈ U := by
+      F.NeBot ∧ ∀ U ∈ B, ∃ M ∈ F, ∀ᵉ (x ∈ M) (y ∈ M), y - x ∈ U := by
   letI := B.uniformSpace
   haveI := B.uniformAddGroup
-  suffices F ×ˢ F ≤ uniformity G ↔ ∀ U ∈ B, ∃ M ∈ F, ∀ (x) (_ : x ∈ M) (y) (_ : y ∈ M), y - x ∈ U by
+  suffices F ×ˢ F ≤ uniformity G ↔ ∀ U ∈ B, ∃ M ∈ F, ∀ᵉ (x ∈ M) (y ∈ M), y - x ∈ U by
     constructor <;> rintro ⟨h', h⟩ <;> refine' ⟨h', _⟩ <;> [rwa [← this]; rwa [this]]
   rw [uniformity_eq_comap_nhds_zero G, ← map_le_iff_le_comap]
   change Tendsto _ _ _ ↔ _

531db2ef

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 @@ open Filter
 
 namespace AddGroupFilterBasis
 
-variable {G : Type _} [AddCommGroup G] (B : AddGroupFilterBasis G)
+variable {G : Type*} [AddCommGroup G] (B : AddGroupFilterBasis G)
 
 /-- The uniform space structure associated to an abelian group filter basis via the associated
 topological abelian group structure. -/

531db2ef

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) 2021 Patrick Massot. All rights reserved.
 Released under Apache 2.0 license as described in the file LICENSE.
 Authors: Patrick Massot
-
-! This file was ported from Lean 3 source module topology.algebra.uniform_filter_basis
-! leanprover-community/mathlib commit 531db2ef0fdddf8b3c8dcdcd87138fe969e1a81a
-! Please do not edit these lines, except to modify the commit id
-! if you have ported upstream changes.
 -/
 import Mathlib.Topology.Algebra.FilterBasis
 import Mathlib.Topology.Algebra.UniformGroup
 
+#align_import topology.algebra.uniform_filter_basis from "leanprover-community/mathlib"@"531db2ef0fdddf8b3c8dcdcd87138fe969e1a81a"
+
 /-!
 # Uniform properties of neighborhood bases in topological algebra

531db2ef

refactor: use the typeclass SProd to implement overloaded notation · ×ˢ · (#4200)

Currently, the following notations are changed from · ×ˢ · because Lean 4 can't deal with ambiguous notations. | Definition | Notation | | :

Co-authored-by: Jeremy Tan Jie Rui <reddeloostw@gmail.com> Co-authored-by: Kyle Miller <kmill31415@gmail.com> Co-authored-by: Chris Hughes <chrishughes24@gmail.com>

6c01dc6e

Diff

@@ -47,7 +47,7 @@ theorem cauchy_iff {F : Filter G} :
       F.NeBot ∧ ∀ U ∈ B, ∃ M ∈ F, ∀ (x) (_ : x ∈ M) (y) (_ : y ∈ M), y - x ∈ U := by
   letI := B.uniformSpace
   haveI := B.uniformAddGroup
-  suffices F ×ᶠ F ≤ uniformity G ↔ ∀ U ∈ B, ∃ M ∈ F, ∀ (x) (_ : x ∈ M) (y) (_ : y ∈ M), y - x ∈ U by
+  suffices F ×ˢ F ≤ uniformity G ↔ ∀ U ∈ B, ∃ M ∈ F, ∀ (x) (_ : x ∈ M) (y) (_ : y ∈ M), y - x ∈ U by
     constructor <;> rintro ⟨h', h⟩ <;> refine' ⟨h', _⟩ <;> [rwa [← this]; rwa [this]]
   rw [uniformity_eq_comap_nhds_zero G, ← map_le_iff_le_comap]
   change Tendsto _ _ _ ↔ _

531db2ef

chore: update std 05-22 (#4248)

The main breaking change is that tac <;> [t1, t2] is now written tac <;> [t1; t2], to avoid clashing with tactics like cases and use that take comma-separated lists.

ac36b28e

Diff

@@ -48,7 +48,7 @@ theorem cauchy_iff {F : Filter G} :
   letI := B.uniformSpace
   haveI := B.uniformAddGroup
   suffices F ×ᶠ F ≤ uniformity G ↔ ∀ U ∈ B, ∃ M ∈ F, ∀ (x) (_ : x ∈ M) (y) (_ : y ∈ M), y - x ∈ U by
-    constructor <;> rintro ⟨h', h⟩ <;> refine' ⟨h', _⟩ <;> [rwa [← this], rwa [this]]
+    constructor <;> rintro ⟨h', h⟩ <;> refine' ⟨h', _⟩ <;> [rwa [← this]; rwa [this]]
   rw [uniformity_eq_comap_nhds_zero G, ← map_le_iff_le_comap]
   change Tendsto _ _ _ ↔ _
   simp [(basis_sets F).prod_self.tendsto_iff B.nhds_zero_hasBasis, @forall_swap (_ ∈ _) G]

531db2ef

feat: port Topology.Algebra.UniformFilterBasis (#3310)

Co-authored-by: Parcly Taxel <reddeloostw@gmail.com>

c90b557c

`topology.algebra.uniform_filter_basis` ⟷ `Mathlib.Topology.Algebra.UniformFilterBasis`

Changes since the initial port

Changes in mathlib3

Changes in mathlib3port

Changes in mathlib4

Dependencies 9 + 467

topology.algebra.uniform_filter_basis ⟷ Mathlib.Topology.Algebra.UniformFilterBasis

Changes since the initial port

Changes in mathlib3

Changes in mathlib3port

Changes in mathlib4

Dependencies 9 + 467

`topology.algebra.uniform_filter_basis` ⟷ `Mathlib.Topology.Algebra.UniformFilterBasis`