measure_theory.function.special_functions.arctanMathlib.MeasureTheory.Function.SpecialFunctions.Arctan

This file has been ported!

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.

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Changes in mathlib3port

mathlib3
mathlib3port
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
 -/
-import Mathbin.Analysis.SpecialFunctions.Trigonometric.Arctan
-import Mathbin.MeasureTheory.Constructions.BorelSpace.Basic
+import Analysis.SpecialFunctions.Trigonometric.Arctan
+import MeasureTheory.Constructions.BorelSpace.Basic
 
 #align_import measure_theory.function.special_functions.arctan from "leanprover-community/mathlib"@"7e5137f579de09a059a5ce98f364a04e221aabf0"
 
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
-
-! This file was ported from Lean 3 source module measure_theory.function.special_functions.arctan
-! leanprover-community/mathlib commit 7e5137f579de09a059a5ce98f364a04e221aabf0
-! Please do not edit these lines, except to modify the commit id
-! if you have ported upstream changes.
 -/
 import Mathbin.Analysis.SpecialFunctions.Trigonometric.Arctan
 import Mathbin.MeasureTheory.Constructions.BorelSpace.Basic
 
+#align_import measure_theory.function.special_functions.arctan from "leanprover-community/mathlib"@"7e5137f579de09a059a5ce98f364a04e221aabf0"
+
 /-!
 # Measurability of arctan
 
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 measure_theory.function.special_functions.arctan
-! leanprover-community/mathlib commit bf6a01357ff5684b1ebcd0f1a13be314fc82c0bf
+! leanprover-community/mathlib commit 7e5137f579de09a059a5ce98f364a04e221aabf0
 ! Please do not edit these lines, except to modify the commit id
 ! if you have ported upstream changes.
 -/
@@ -14,6 +14,9 @@ import Mathbin.MeasureTheory.Constructions.BorelSpace.Basic
 /-!
 # Measurability of arctan
 
+> THIS FILE IS SYNCHRONIZED WITH MATHLIB4.
+> Any changes to this file require a corresponding PR to mathlib4.
+
 -/
 
 
Diff
@@ -19,10 +19,12 @@ import Mathbin.MeasureTheory.Constructions.BorelSpace.Basic
 
 namespace Real
 
+#print Real.measurable_arctan /-
 @[measurability]
 theorem measurable_arctan : Measurable arctan :=
   continuous_arctan.Measurable
 #align real.measurable_arctan Real.measurable_arctan
+-/
 
 end Real
 
@@ -32,10 +34,12 @@ open Real
 
 variable {α : Type _} {m : MeasurableSpace α} {f : α → ℝ} (hf : Measurable f)
 
+#print Measurable.arctan /-
 @[measurability]
 theorem Measurable.arctan : Measurable fun x => arctan (f x) :=
   measurable_arctan.comp hf
 #align measurable.arctan Measurable.arctan
+-/
 
 end RealComposition
 
Diff
@@ -4,12 +4,12 @@ Released under Apache 2.0 license as described in the file LICENSE.
 Authors: Yury Kudryashov
 
 ! This file was ported from Lean 3 source module measure_theory.function.special_functions.arctan
-! leanprover-community/mathlib commit 70fd9563a21e7b963887c9360bd29b2393e6225a
+! leanprover-community/mathlib commit bf6a01357ff5684b1ebcd0f1a13be314fc82c0bf
 ! Please do not edit these lines, except to modify the commit id
 ! if you have ported upstream changes.
 -/
 import Mathbin.Analysis.SpecialFunctions.Trigonometric.Arctan
-import Mathbin.MeasureTheory.Constructions.BorelSpace
+import Mathbin.MeasureTheory.Constructions.BorelSpace.Basic
 
 /-!
 # Measurability of arctan

Changes in mathlib4

mathlib3
mathlib4
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.

Diff
@@ -27,7 +27,7 @@ section RealComposition
 
 open Real
 
-variable {α : Type _} {m : MeasurableSpace α} {f : α → ℝ} (hf : Measurable f)
+variable {α : Type*} {m : MeasurableSpace α} {f : α → ℝ} (hf : Measurable f)
 
 @[measurability]
 theorem Measurable.arctan : Measurable fun x => arctan (f x) :=
chore: script to replace headers with #align_import statements (#5979)

Open in Gitpod

Co-authored-by: Eric Wieser <wieser.eric@gmail.com> Co-authored-by: Scott Morrison <scott.morrison@gmail.com>

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
-
-! This file was ported from Lean 3 source module measure_theory.function.special_functions.arctan
-! leanprover-community/mathlib commit bf6a01357ff5684b1ebcd0f1a13be314fc82c0bf
-! Please do not edit these lines, except to modify the commit id
-! if you have ported upstream changes.
 -/
 import Mathlib.Analysis.SpecialFunctions.Trigonometric.Arctan
 import Mathlib.MeasureTheory.Constructions.BorelSpace.Basic
 
+#align_import measure_theory.function.special_functions.arctan from "leanprover-community/mathlib"@"bf6a01357ff5684b1ebcd0f1a13be314fc82c0bf"
+
 /-!
 # Measurability of arctan
 
feat: port MeasureTheory.Function.SpecialFunctions.Arctan (#4754)

Dependencies 12 + 971

972 files ported (98.8%)
429283 lines ported (98.7%)
Show graph

The unported dependencies are

The following 1 dependencies have changed in mathlib3 since they were ported, which may complicate porting this file