geometry.manifold.metrizable | 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

d1bd9c5d

(last sync)

Changes in mathlib3port

mathlib3

mathlib3port

36938f77

bump to nightly-2024-04-06-08

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

e34029c9

Diff

@@ -4,8 +4,8 @@ Released under Apache 2.0 license as described in the file LICENSE.
 Authors: Yury Kudryashov
 -/
 import Geometry.Manifold.SmoothManifoldWithCorners
-import Topology.Paracompact
-import Topology.MetricSpace.Metrizable
+import Topology.Compactness.Paracompact
+import Topology.Metrizable.Basic
 
 #align_import geometry.manifold.metrizable from "leanprover-community/mathlib"@"36938f775671ff28bea1c0310f1608e4afbb22e0"

36938f77

bump to nightly-2023-09-24-06

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

5655435f

Diff

@@ -3,9 +3,9 @@ Copyright (c) 2022 Yury Kudryashov. All rights reserved.
 Released under Apache 2.0 license as described in the file LICENSE.
 Authors: Yury Kudryashov
 -/
-import Mathbin.Geometry.Manifold.SmoothManifoldWithCorners
-import Mathbin.Topology.Paracompact
-import Mathbin.Topology.MetricSpace.Metrizable
+import Geometry.Manifold.SmoothManifoldWithCorners
+import Topology.Paracompact
+import Topology.MetricSpace.Metrizable
 
 #align_import geometry.manifold.metrizable from "leanprover-community/mathlib"@"36938f775671ff28bea1c0310f1608e4afbb22e0"

36938f77

bump to nightly-2023-09-14-06

mathlib commit https://github.com/leanprover-community/mathlib/commit/001ffdc42920050657fd45bd2b8bfbec8eaaeb29

4e7aae4f

Diff

@@ -30,7 +30,7 @@ theorem ManifoldWithCorners.metrizableSpace {E : Type _} [NormedAddCommGroup E]
     (M : Type _) [TopologicalSpace M] [ChartedSpace H M] [SigmaCompactSpace M] [T2Space M] :
     MetrizableSpace M := by
   haveI := I.locally_compact; haveI := ChartedSpace.locallyCompactSpace H M
-  haveI : NormalSpace M := normal_of_paracompact_t2
+  haveI : NormalSpace M := T4Space.of_paracompactSpace_t2Space
   haveI := I.second_countable_topology
   haveI := ChartedSpace.secondCountable_of_sigma_compact H M
   exact metrizable_space_of_t3_second_countable M

36938f77

bump to nightly-2023-08-25-23

mathlib commit https://github.com/leanprover-community/mathlib/commit/32a7e535287f9c73f2e4d2aef306a39190f0b504

3290f295

Diff

@@ -29,7 +29,7 @@ theorem ManifoldWithCorners.metrizableSpace {E : Type _} [NormedAddCommGroup E]
     [FiniteDimensional ℝ E] {H : Type _} [TopologicalSpace H] (I : ModelWithCorners ℝ E H)
     (M : Type _) [TopologicalSpace M] [ChartedSpace H M] [SigmaCompactSpace M] [T2Space M] :
     MetrizableSpace M := by
-  haveI := I.locally_compact; haveI := ChartedSpace.locallyCompact H M
+  haveI := I.locally_compact; haveI := ChartedSpace.locallyCompactSpace H M
   haveI : NormalSpace M := normal_of_paracompact_t2
   haveI := I.second_countable_topology
   haveI := ChartedSpace.secondCountable_of_sigma_compact H M

36938f77

bump to nightly-2023-07-20-09

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

9c56d0dd

Diff

@@ -2,16 +2,13 @@
 Copyright (c) 2022 Yury Kudryashov. All rights reserved.
 Released under Apache 2.0 license as described in the file LICENSE.
 Authors: Yury Kudryashov
-
-! This file was ported from Lean 3 source module geometry.manifold.metrizable
-! leanprover-community/mathlib commit 36938f775671ff28bea1c0310f1608e4afbb22e0
-! Please do not edit these lines, except to modify the commit id
-! if you have ported upstream changes.
 -/
 import Mathbin.Geometry.Manifold.SmoothManifoldWithCorners
 import Mathbin.Topology.Paracompact
 import Mathbin.Topology.MetricSpace.Metrizable
 
+#align_import geometry.manifold.metrizable from "leanprover-community/mathlib"@"36938f775671ff28bea1c0310f1608e4afbb22e0"
+
 /-!
 # Metrizability of a σ-compact manifold

36938f77

bump to nightly-2023-06-13-21

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

829520ac

Diff

@@ -25,6 +25,7 @@ vector space is metrizable.
 
 open TopologicalSpace
 
+#print ManifoldWithCorners.metrizableSpace /-
 /-- A σ-compact Hausdorff topological manifold over a finite dimensional real vector space is
 metrizable. -/
 theorem ManifoldWithCorners.metrizableSpace {E : Type _} [NormedAddCommGroup E] [NormedSpace ℝ E]
@@ -37,4 +38,5 @@ theorem ManifoldWithCorners.metrizableSpace {E : Type _} [NormedAddCommGroup E]
   haveI := ChartedSpace.secondCountable_of_sigma_compact H M
   exact metrizable_space_of_t3_second_countable M
 #align manifold_with_corners.metrizable_space ManifoldWithCorners.metrizableSpace
+-/

36938f77

bump to nightly-2023-06-07-03

mathlib commit https://github.com/leanprover-community/mathlib/commit/58a272265b5e05f258161260dd2c5d247213cbd3

831e78ce

Diff

@@ -4,7 +4,7 @@ Released under Apache 2.0 license as described in the file LICENSE.
 Authors: Yury Kudryashov
 
 ! This file was ported from Lean 3 source module geometry.manifold.metrizable
-! leanprover-community/mathlib commit d1bd9c5df2867c1cb463bc6364446d57bdd9f7f1
+! leanprover-community/mathlib commit 36938f775671ff28bea1c0310f1608e4afbb22e0
 ! Please do not edit these lines, except to modify the commit id
 ! if you have ported upstream changes.
 -/
@@ -15,6 +15,9 @@ import Mathbin.Topology.MetricSpace.Metrizable
 /-!
 # Metrizability of a σ-compact manifold
 
+> THIS FILE IS SYNCHRONIZED WITH MATHLIB4.
+> Any changes to this file require a corresponding PR to mathlib4.
+
 In this file we show that a σ-compact Hausdorff topological manifold over a finite dimensional real
 vector space is metrizable.
 -/

d1bd9c5d

bump to nightly-2023-04-11-14

mathlib commit https://github.com/leanprover-community/mathlib/commit/c9236f47f5b9df573443aa499c0d3968769628b7

34188197

Diff

@@ -28,10 +28,10 @@ theorem ManifoldWithCorners.metrizableSpace {E : Type _} [NormedAddCommGroup E]
     [FiniteDimensional ℝ E] {H : Type _} [TopologicalSpace H] (I : ModelWithCorners ℝ E H)
     (M : Type _) [TopologicalSpace M] [ChartedSpace H M] [SigmaCompactSpace M] [T2Space M] :
     MetrizableSpace M := by
-  haveI := I.locally_compact; haveI := ChartedSpace.locally_compact H M
+  haveI := I.locally_compact; haveI := ChartedSpace.locallyCompact H M
   haveI : NormalSpace M := normal_of_paracompact_t2
   haveI := I.second_countable_topology
-  haveI := ChartedSpace.second_countable_of_sigma_compact H M
+  haveI := ChartedSpace.secondCountable_of_sigma_compact H M
   exact metrizable_space_of_t3_second_countable M
 #align manifold_with_corners.metrizable_space ManifoldWithCorners.metrizableSpace

d1bd9c5d

bump to nightly-2023-02-21-16

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

1107b979

Changes in mathlib4

mathlib3

mathlib4

d1bd9c5d

chore: split Topology.MetricSpace.Metrizable* (#7912)

Move

basic definitions to Topology.Metrizable.Basic,
Urysohn's metrization theorem to `Topology.Metrizable.Urysohns', and
metrizability of a uniform space with countably generated uniformity to Topology.Metrizable.Uniform.

The next step is to redefine Metrizable as "uniformizable with countably generated uniformity" and make this definition available much earlier.

442eef6f

Diff

@@ -5,7 +5,7 @@ Authors: Yury Kudryashov
 -/
 import Mathlib.Geometry.Manifold.SmoothManifoldWithCorners
 import Mathlib.Topology.Compactness.Paracompact
-import Mathlib.Topology.MetricSpace.Metrizable
+import Mathlib.Topology.Metrizable.Urysohn
 
 #align_import geometry.manifold.metrizable from "leanprover-community/mathlib"@"d1bd9c5df2867c1cb463bc6364446d57bdd9f7f1"

d1bd9c5d

chore(Topology/SubsetProperties): Refactor SubsetProperties.lean (#7628)

Split up the 2000-line Topology/SubsetProperties.lean into several smaller files. Not only is it too huge, but the name is very unhelpful, since actually about 90% of the file is about compactness; I've moved this material into various files inside a new subdirectory Topology/Compactness/.

13444d80

Diff

@@ -4,7 +4,7 @@ Released under Apache 2.0 license as described in the file LICENSE.
 Authors: Yury Kudryashov
 -/
 import Mathlib.Geometry.Manifold.SmoothManifoldWithCorners
-import Mathlib.Topology.Paracompact
+import Mathlib.Topology.Compactness.Paracompact
 import Mathlib.Topology.MetricSpace.Metrizable
 
 #align_import geometry.manifold.metrizable from "leanprover-community/mathlib"@"d1bd9c5df2867c1cb463bc6364446d57bdd9f7f1"

d1bd9c5d

refactor: split NormalSpace into NormalSpace and T4Space (#7072)

Rename NormalSpace to T4Space.
Add NormalSpace, a version without the T1Space assumption.
Adjust some theorems.
Supersedes thus closes #6892.
Add some instance cycles, see #2030

bf815bd5

Diff

@@ -26,7 +26,6 @@ theorem ManifoldWithCorners.metrizableSpace {E : Type*} [NormedAddCommGroup E] [
     (M : Type*) [TopologicalSpace M] [ChartedSpace H M] [SigmaCompactSpace M] [T2Space M] :
     MetrizableSpace M := by
   haveI := I.locallyCompactSpace; haveI := ChartedSpace.locallyCompactSpace H M
-  haveI : NormalSpace M := normal_of_paracompact_t2
   haveI := I.secondCountableTopology
   haveI := ChartedSpace.secondCountable_of_sigma_compact H M
   exact metrizableSpace_of_t3_second_countable M

d1bd9c5d

chore: rename 2 lemmas (#6767)

ChartedSpace.locallyCompact → ChartedSpace.locallyCompactSpace
ModelWithCorners.locally_compact → ModelWithCorners.locallyCompactSpace

2deb01ba

Diff

@@ -25,7 +25,7 @@ theorem ManifoldWithCorners.metrizableSpace {E : Type*} [NormedAddCommGroup E] [
     [FiniteDimensional ℝ E] {H : Type*} [TopologicalSpace H] (I : ModelWithCorners ℝ E H)
     (M : Type*) [TopologicalSpace M] [ChartedSpace H M] [SigmaCompactSpace M] [T2Space M] :
     MetrizableSpace M := by
-  haveI := I.locally_compact; haveI := ChartedSpace.locallyCompact H M
+  haveI := I.locallyCompactSpace; haveI := ChartedSpace.locallyCompactSpace H M
   haveI : NormalSpace M := normal_of_paracompact_t2
   haveI := I.secondCountableTopology
   haveI := ChartedSpace.secondCountable_of_sigma_compact H M

d1bd9c5d

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

@@ -21,9 +21,9 @@ open TopologicalSpace
 
 /-- A σ-compact Hausdorff topological manifold over a finite dimensional real vector space is
 metrizable. -/
-theorem ManifoldWithCorners.metrizableSpace {E : Type _} [NormedAddCommGroup E] [NormedSpace ℝ E]
-    [FiniteDimensional ℝ E] {H : Type _} [TopologicalSpace H] (I : ModelWithCorners ℝ E H)
-    (M : Type _) [TopologicalSpace M] [ChartedSpace H M] [SigmaCompactSpace M] [T2Space M] :
+theorem ManifoldWithCorners.metrizableSpace {E : Type*} [NormedAddCommGroup E] [NormedSpace ℝ E]
+    [FiniteDimensional ℝ E] {H : Type*} [TopologicalSpace H] (I : ModelWithCorners ℝ E H)
+    (M : Type*) [TopologicalSpace M] [ChartedSpace H M] [SigmaCompactSpace M] [T2Space M] :
     MetrizableSpace M := by
   haveI := I.locally_compact; haveI := ChartedSpace.locallyCompact H M
   haveI : NormalSpace M := normal_of_paracompact_t2

d1bd9c5d

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

@@ -2,16 +2,13 @@
 Copyright (c) 2022 Yury Kudryashov. All rights reserved.
 Released under Apache 2.0 license as described in the file LICENSE.
 Authors: Yury Kudryashov
-
-! This file was ported from Lean 3 source module geometry.manifold.metrizable
-! leanprover-community/mathlib commit d1bd9c5df2867c1cb463bc6364446d57bdd9f7f1
-! Please do not edit these lines, except to modify the commit id
-! if you have ported upstream changes.
 -/
 import Mathlib.Geometry.Manifold.SmoothManifoldWithCorners
 import Mathlib.Topology.Paracompact
 import Mathlib.Topology.MetricSpace.Metrizable
 
+#align_import geometry.manifold.metrizable from "leanprover-community/mathlib"@"d1bd9c5df2867c1cb463bc6364446d57bdd9f7f1"
+
 /-!
 # Metrizability of a σ-compact manifold

d1bd9c5d

feat: port Geometry.Manifold.Metrizable (#4679)

89d74aba

`geometry.manifold.metrizable` ⟷ `Mathlib.Geometry.Manifold.Metrizable`

Changes since the initial port

Changes in mathlib3

Changes in mathlib3port

Changes in mathlib4

Dependencies 12 + 887

geometry.manifold.metrizable ⟷ Mathlib.Geometry.Manifold.Metrizable

Changes since the initial port

Changes in mathlib3

Changes in mathlib3port

Changes in mathlib4

Dependencies 12 + 887

`geometry.manifold.metrizable` ⟷ `Mathlib.Geometry.Manifold.Metrizable`