dynamics.fixed_points.topology | 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

d90e4e18

(last sync)

Changes in mathlib3port

mathlib3

mathlib3port

4c19a16e

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) 2020 Yury Kudryashov. All rights reserved.
 Released under Apache 2.0 license as described in the file LICENSE.
 Authors: Yury Kudryashov, Johannes Hölzl
 -/
-import Mathbin.Dynamics.FixedPoints.Basic
-import Mathbin.Topology.Separation
+import Dynamics.FixedPoints.Basic
+import Topology.Separation
 
 #align_import dynamics.fixed_points.topology from "leanprover-community/mathlib"@"4c19a16e4b705bf135cf9a80ac18fcc99c438514"

4c19a16e

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) 2020 Yury Kudryashov. All rights reserved.
 Released under Apache 2.0 license as described in the file LICENSE.
 Authors: Yury Kudryashov, Johannes Hölzl
-
-! This file was ported from Lean 3 source module dynamics.fixed_points.topology
-! leanprover-community/mathlib commit 4c19a16e4b705bf135cf9a80ac18fcc99c438514
-! Please do not edit these lines, except to modify the commit id
-! if you have ported upstream changes.
 -/
 import Mathbin.Dynamics.FixedPoints.Basic
 import Mathbin.Topology.Separation
 
+#align_import dynamics.fixed_points.topology from "leanprover-community/mathlib"@"4c19a16e4b705bf135cf9a80ac18fcc99c438514"
+
 /-!
 # Topological properties of fixed points

4c19a16e

bump to nightly-2023-05-28-18

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

8d353152

Diff

@@ -32,7 +32,7 @@ variable {α : Type _} [TopologicalSpace α] [T2Space α] {f : α → α}
 
 open Function Filter
 
-open Topology
+open scoped Topology
 
 #print isFixedPt_of_tendsto_iterate /-
 /-- If the iterates `f^[n] x` converge to `y` and `f` is continuous at `y`,

4c19a16e

bump to nightly-2023-02-21-16

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

1107b979

Changes in mathlib4

mathlib3

mathlib4

d90e4e18

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

@@ -22,7 +22,7 @@ fixed points, iterates
 -/
 
 
-variable {α : Type _} [TopologicalSpace α] [T2Space α] {f : α → α}
+variable {α : Type*} [TopologicalSpace α] [T2Space α] {f : α → α}
 
 open Function Filter

d90e4e18

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) 2020 Yury Kudryashov. All rights reserved.
 Released under Apache 2.0 license as described in the file LICENSE.
 Authors: Yury Kudryashov, Johannes Hölzl
-
-! This file was ported from Lean 3 source module dynamics.fixed_points.topology
-! leanprover-community/mathlib commit d90e4e186f1d18e375dcd4e5b5f6364b01cb3e46
-! Please do not edit these lines, except to modify the commit id
-! if you have ported upstream changes.
 -/
 import Mathlib.Dynamics.FixedPoints.Basic
 import Mathlib.Topology.Separation
 
+#align_import dynamics.fixed_points.topology from "leanprover-community/mathlib"@"d90e4e186f1d18e375dcd4e5b5f6364b01cb3e46"
+
 /-!
 # Topological properties of fixed points

d90e4e18

fix precedence of Nat.iterate (#5589)

bd2fff86

Diff

@@ -33,7 +33,7 @@ open Topology
 
 /-- If the iterates `f^[n] x` converge to `y` and `f` is continuous at `y`,
 then `y` is a fixed point for `f`. -/
-theorem isFixedPt_of_tendsto_iterate {x y : α} (hy : Tendsto (fun n => (f^[n]) x) atTop (𝓝 y))
+theorem isFixedPt_of_tendsto_iterate {x y : α} (hy : Tendsto (fun n => f^[n] x) atTop (𝓝 y))
     (hf : ContinuousAt f y) : IsFixedPt f y := by
   refine' tendsto_nhds_unique ((tendsto_add_atTop_iff_nat 1).1 _) hy
   simp only [iterate_succ' f]
@@ -44,4 +44,3 @@ theorem isFixedPt_of_tendsto_iterate {x y : α} (hy : Tendsto (fun n => (f^[n])
 theorem isClosed_fixedPoints (hf : Continuous f) : IsClosed (fixedPoints f) :=
   isClosed_eq hf continuous_id
 #align is_closed_fixed_points isClosed_fixedPoints
-

d90e4e18

feat: Port Dynamics.FixedPoints.Topology (#2023)

Only renaming.

d050243d

`dynamics.fixed_points.topology` ⟷ `Mathlib.Dynamics.FixedPoints.Topology`

Changes since the initial port

Changes in mathlib3

Changes in mathlib3port

Changes in mathlib4

Dependencies 8 + 304

dynamics.fixed_points.topology ⟷ Mathlib.Dynamics.FixedPoints.Topology

Changes since the initial port

Changes in mathlib3

Changes in mathlib3port

Changes in mathlib4

Dependencies 8 + 304

`dynamics.fixed_points.topology` ⟷ `Mathlib.Dynamics.FixedPoints.Topology`