PR contents

(last sync)

Changes in mathlib3port

mathlib3

mathlib3port

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) 2018 Chris Hughes. All rights reserved.
 Released under Apache 2.0 license as described in the file LICENSE.
 Authors: Chris Hughes, Abhimanyu Pallavi Sudhir, Jean Lo, Calle Sönne, Benjamin Davidson
 -/
-import Mathbin.Analysis.SpecialFunctions.Trigonometric.Complex
+import Analysis.SpecialFunctions.Trigonometric.Complex
 
 #align_import analysis.special_functions.trigonometric.complex_deriv from "leanprover-community/mathlib"@"c20927220ef87bb4962ba08bf6da2ce3cf50a6dd"

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) 2018 Chris Hughes. All rights reserved.
 Released under Apache 2.0 license as described in the file LICENSE.
 Authors: Chris Hughes, Abhimanyu Pallavi Sudhir, Jean Lo, Calle Sönne, Benjamin Davidson
-
-! This file was ported from Lean 3 source module analysis.special_functions.trigonometric.complex_deriv
-! leanprover-community/mathlib commit c20927220ef87bb4962ba08bf6da2ce3cf50a6dd
-! Please do not edit these lines, except to modify the commit id
-! if you have ported upstream changes.
 -/
 import Mathbin.Analysis.SpecialFunctions.Trigonometric.Complex
 
+#align_import analysis.special_functions.trigonometric.complex_deriv from "leanprover-community/mathlib"@"c20927220ef87bb4962ba08bf6da2ce3cf50a6dd"
+
 /-!
 # Complex trigonometric functions

bump to nightly-2023-06-13-21

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

829520ac

Diff

@@ -28,19 +28,24 @@ open Set Filter
 
 open scoped Real
 
+#print Complex.hasStrictDerivAt_tan /-
 theorem hasStrictDerivAt_tan {x : ℂ} (h : cos x ≠ 0) : HasStrictDerivAt tan (1 / cos x ^ 2) x :=
   by
   convert (has_strict_deriv_at_sin x).div (has_strict_deriv_at_cos x) h
   rw [← sin_sq_add_cos_sq x]
   ring
 #align complex.has_strict_deriv_at_tan Complex.hasStrictDerivAt_tan
+-/
 
+#print Complex.hasDerivAt_tan /-
 theorem hasDerivAt_tan {x : ℂ} (h : cos x ≠ 0) : HasDerivAt tan (1 / cos x ^ 2) x :=
   (hasStrictDerivAt_tan h).HasDerivAt
 #align complex.has_deriv_at_tan Complex.hasDerivAt_tan
+-/
 
 open scoped Topology
 
+#print Complex.tendsto_abs_tan_of_cos_eq_zero /-
 theorem tendsto_abs_tan_of_cos_eq_zero {x : ℂ} (hx : cos x = 0) :
     Tendsto (fun x => abs (tan x)) (𝓝[≠] x) atTop :=
   by
@@ -52,12 +57,16 @@ theorem tendsto_abs_tan_of_cos_eq_zero {x : ℂ} (hx : cos x = 0) :
     continuous_sin.continuous_within_at.norm.mul_at_top (norm_pos_iff.2 A)
       (tendsto_norm_nhds_within_zero.comp B).inv_tendsto_zero
 #align complex.tendsto_abs_tan_of_cos_eq_zero Complex.tendsto_abs_tan_of_cos_eq_zero
+-/
 
+#print Complex.tendsto_abs_tan_atTop /-
 theorem tendsto_abs_tan_atTop (k : ℤ) :
     Tendsto (fun x => abs (tan x)) (𝓝[≠] ((2 * k + 1) * π / 2)) atTop :=
   tendsto_abs_tan_of_cos_eq_zero <| cos_eq_zero_iff.2 ⟨k, rfl⟩
 #align complex.tendsto_abs_tan_at_top Complex.tendsto_abs_tan_atTop
+-/
 
+#print Complex.continuousAt_tan /-
 @[simp]
 theorem continuousAt_tan {x : ℂ} : ContinuousAt tan x ↔ cos x ≠ 0 :=
   by
@@ -66,12 +75,16 @@ theorem continuousAt_tan {x : ℂ} : ContinuousAt tan x ↔ cos x ≠ 0 :=
     not_tendsto_nhds_of_tendsto_atTop (tendsto_abs_tan_of_cos_eq_zero h₀) _
       (hc.norm.tendsto.mono_left inf_le_left)
 #align complex.continuous_at_tan Complex.continuousAt_tan
+-/
 
+#print Complex.differentiableAt_tan /-
 @[simp]
 theorem differentiableAt_tan {x : ℂ} : DifferentiableAt ℂ tan x ↔ cos x ≠ 0 :=
   ⟨fun h => continuousAt_tan.1 h.ContinuousAt, fun h => (hasDerivAt_tan h).DifferentiableAt⟩
 #align complex.differentiable_at_tan Complex.differentiableAt_tan
+-/
 
+#print Complex.deriv_tan /-
 @[simp]
 theorem deriv_tan (x : ℂ) : deriv tan x = 1 / cos x ^ 2 :=
   if h : cos x = 0 then
@@ -80,11 +93,14 @@ theorem deriv_tan (x : ℂ) : deriv tan x = 1 / cos x ^ 2 :=
     simp [deriv_zero_of_not_differentiableAt this, h, sq]
   else (hasDerivAt_tan h).deriv
 #align complex.deriv_tan Complex.deriv_tan
+-/
 
+#print Complex.contDiffAt_tan /-
 @[simp]
 theorem contDiffAt_tan {x : ℂ} {n : ℕ∞} : ContDiffAt ℂ n tan x ↔ cos x ≠ 0 :=
   ⟨fun h => continuousAt_tan.1 h.ContinuousAt, contDiff_sin.ContDiffAt.div contDiff_cos.ContDiffAt⟩
 #align complex.cont_diff_at_tan Complex.contDiffAt_tan
+-/
 
 end Complex

bump to nightly-2023-06-08-03

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

8f04dc2b

Diff

@@ -4,7 +4,7 @@ Released under Apache 2.0 license as described in the file LICENSE.
 Authors: Chris Hughes, Abhimanyu Pallavi Sudhir, Jean Lo, Calle Sönne, Benjamin Davidson
 
 ! This file was ported from Lean 3 source module analysis.special_functions.trigonometric.complex_deriv
-! leanprover-community/mathlib commit 2c1d8ca2812b64f88992a5294ea3dba144755cd1
+! leanprover-community/mathlib commit c20927220ef87bb4962ba08bf6da2ce3cf50a6dd
 ! Please do not edit these lines, except to modify the commit id
 ! if you have ported upstream changes.
 -/
@@ -13,6 +13,9 @@ import Mathbin.Analysis.SpecialFunctions.Trigonometric.Complex
 /-!
 # Complex trigonometric functions
 
+> THIS FILE IS SYNCHRONIZED WITH MATHLIB4.
+> Any changes to this file require a corresponding PR to mathlib4.
+
 Basic facts and derivatives for the complex trigonometric functions.
 -/

bump to nightly-2023-06-04-18

mathlib commit https://github.com/leanprover-community/mathlib/commit/5f25c089cb34db4db112556f23c50d12da81b297

3fb4268b

Diff

@@ -27,7 +27,7 @@ open scoped Real
 
 theorem hasStrictDerivAt_tan {x : ℂ} (h : cos x ≠ 0) : HasStrictDerivAt tan (1 / cos x ^ 2) x :=
   by
-  convert(has_strict_deriv_at_sin x).div (has_strict_deriv_at_cos x) h
+  convert (has_strict_deriv_at_sin x).div (has_strict_deriv_at_cos x) h
   rw [← sin_sq_add_cos_sq x]
   ring
 #align complex.has_strict_deriv_at_tan Complex.hasStrictDerivAt_tan

bump to nightly-2023-05-28-18

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

8d353152

Diff

@@ -23,7 +23,7 @@ namespace Complex
 
 open Set Filter
 
-open Real
+open scoped Real
 
 theorem hasStrictDerivAt_tan {x : ℂ} (h : cos x ≠ 0) : HasStrictDerivAt tan (1 / cos x ^ 2) x :=
   by
@@ -36,7 +36,7 @@ theorem hasDerivAt_tan {x : ℂ} (h : cos x ≠ 0) : HasDerivAt tan (1 / cos x ^
   (hasStrictDerivAt_tan h).HasDerivAt
 #align complex.has_deriv_at_tan Complex.hasDerivAt_tan
 
-open Topology
+open scoped Topology
 
 theorem tendsto_abs_tan_of_cos_eq_zero {x : ℂ} (hx : cos x = 0) :
     Tendsto (fun x => abs (tan x)) (𝓝[≠] x) atTop :=

bump to nightly-2023-05-03-02

mathlib commit https://github.com/leanprover-community/mathlib/commit/36b8aa61ea7c05727161f96a0532897bd72aedab

5ced3cdd

Diff

@@ -4,12 +4,11 @@ Released under Apache 2.0 license as described in the file LICENSE.
 Authors: Chris Hughes, Abhimanyu Pallavi Sudhir, Jean Lo, Calle Sönne, Benjamin Davidson
 
 ! This file was ported from Lean 3 source module analysis.special_functions.trigonometric.complex_deriv
-! leanprover-community/mathlib commit f2ce6086713c78a7f880485f7917ea547a215982
+! leanprover-community/mathlib commit 2c1d8ca2812b64f88992a5294ea3dba144755cd1
 ! Please do not edit these lines, except to modify the commit id
 ! if you have ported upstream changes.
 -/
 import Mathbin.Analysis.SpecialFunctions.Trigonometric.Complex
-import Mathbin.Analysis.SpecialFunctions.Trigonometric.Deriv
 
 /-!
 # Complex trigonometric functions

bump to nightly-2023-03-17-00

mathlib commit https://github.com/leanprover-community/mathlib/commit/ce7e9d53d4bbc38065db3b595cd5bd73c323bc1d

c85864d4

Diff

@@ -28,7 +28,7 @@ open Real
 
 theorem hasStrictDerivAt_tan {x : ℂ} (h : cos x ≠ 0) : HasStrictDerivAt tan (1 / cos x ^ 2) x :=
   by
-  convert (has_strict_deriv_at_sin x).div (has_strict_deriv_at_cos x) h
+  convert(has_strict_deriv_at_sin x).div (has_strict_deriv_at_cos x) h
   rw [← sin_sq_add_cos_sq x]
   ring
 #align complex.has_strict_deriv_at_tan Complex.hasStrictDerivAt_tan

bump to nightly-2023-03-13-14

mathlib commit https://github.com/leanprover-community/mathlib/commit/2af0836443b4cfb5feda0df0051acdb398304931

a0c9db6f

Diff

@@ -40,7 +40,7 @@ theorem hasDerivAt_tan {x : ℂ} (h : cos x ≠ 0) : HasDerivAt tan (1 / cos x ^
 open Topology
 
 theorem tendsto_abs_tan_of_cos_eq_zero {x : ℂ} (hx : cos x = 0) :
-    Tendsto (fun x => Complex.AbsTheory.Complex.abs (tan x)) (𝓝[≠] x) atTop :=
+    Tendsto (fun x => abs (tan x)) (𝓝[≠] x) atTop :=
   by
   simp only [tan_eq_sin_div_cos, ← norm_eq_abs, norm_div]
   have A : sin x ≠ 0 := fun h => by simpa [*, sq] using sin_sq_add_cos_sq x
@@ -52,7 +52,7 @@ theorem tendsto_abs_tan_of_cos_eq_zero {x : ℂ} (hx : cos x = 0) :
 #align complex.tendsto_abs_tan_of_cos_eq_zero Complex.tendsto_abs_tan_of_cos_eq_zero
 
 theorem tendsto_abs_tan_atTop (k : ℤ) :
-    Tendsto (fun x => Complex.AbsTheory.Complex.abs (tan x)) (𝓝[≠] ((2 * k + 1) * π / 2)) atTop :=
+    Tendsto (fun x => abs (tan x)) (𝓝[≠] ((2 * k + 1) * π / 2)) atTop :=
   tendsto_abs_tan_of_cos_eq_zero <| cos_eq_zero_iff.2 ⟨k, rfl⟩
 #align complex.tendsto_abs_tan_at_top Complex.tendsto_abs_tan_atTop

bump to nightly-2023-03-10-14

mathlib commit https://github.com/leanprover-community/mathlib/commit/ddec54a71a0dd025c05445d467f1a2b7d586a3ba

24f14899

Diff

@@ -40,7 +40,7 @@ theorem hasDerivAt_tan {x : ℂ} (h : cos x ≠ 0) : HasDerivAt tan (1 / cos x ^
 open Topology
 
 theorem tendsto_abs_tan_of_cos_eq_zero {x : ℂ} (hx : cos x = 0) :
-    Tendsto (fun x => abs (tan x)) (𝓝[≠] x) atTop :=
+    Tendsto (fun x => Complex.AbsTheory.Complex.abs (tan x)) (𝓝[≠] x) atTop :=
   by
   simp only [tan_eq_sin_div_cos, ← norm_eq_abs, norm_div]
   have A : sin x ≠ 0 := fun h => by simpa [*, sq] using sin_sq_add_cos_sq x
@@ -52,7 +52,7 @@ theorem tendsto_abs_tan_of_cos_eq_zero {x : ℂ} (hx : cos x = 0) :
 #align complex.tendsto_abs_tan_of_cos_eq_zero Complex.tendsto_abs_tan_of_cos_eq_zero
 
 theorem tendsto_abs_tan_atTop (k : ℤ) :
-    Tendsto (fun x => abs (tan x)) (𝓝[≠] ((2 * k + 1) * π / 2)) atTop :=
+    Tendsto (fun x => Complex.AbsTheory.Complex.abs (tan x)) (𝓝[≠] ((2 * k + 1) * π / 2)) atTop :=
   tendsto_abs_tan_of_cos_eq_zero <| cos_eq_zero_iff.2 ⟨k, rfl⟩
 #align complex.tendsto_abs_tan_at_top Complex.tendsto_abs_tan_atTop

bump to nightly-2023-02-21-16

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

1107b979

Changes in mathlib4

mathlib3

mathlib4

chore: bump to v4.3.0-rc2 (#8366)

PR contents

This is the supremum of

#8284
#8056
#8023
#8332
#8226 (already approved)
#7834 (already approved)

along with some minor fixes from failures on nightly-testing as Mathlib master is merged into it.

Note that some PRs for changes that are already compatible with the current toolchain and will be necessary have already been split out: #8380.

I am hopeful that in future we will be able to progressively merge adaptation PRs into a bump/v4.X.0 branch, so we never end up with a "big merge" like this. However one of these adaptation PRs (#8056) predates my new scheme for combined CI, and it wasn't possible to keep that PR viable in the meantime.

Lean PRs involved in this bump

In particular this includes adjustments for the Lean PRs

leanprover/lean4#2778

We can get rid of all the

local macro_rules | `($x ^ $y) => `(HPow.hPow $x $y) -- Porting note: See issue [lean4#2220](https://github.com/leanprover/lean4/pull/2220)

macros across Mathlib (and in any projects that want to write natural number powers of reals).

leanprover/lean4#2722

Changes the default behaviour of simp to (config := {decide := false}). This makes simp (and consequentially norm_num) less powerful, but also more consistent, and less likely to blow up in long failures. This requires a variety of changes: changing some previously by simp or norm_num to decide or rfl, or adding (config := {decide := true}).

leanprover/lean4#2783

This changed the behaviour of simp so that simp [f] will only unfold "fully applied" occurrences of f. The old behaviour can be recovered with simp (config := { unfoldPartialApp := true }). We may in future add a syntax for this, e.g. simp [!f]; please provide feedback! In the meantime, we have made the following changes:

switching to using explicit lemmas that have the intended level of application
(config := { unfoldPartialApp := true }) in some places, to recover the old behaviour
Using @[eqns] to manually adjust the equation lemmas for a particular definition, recovering the old behaviour just for that definition. See #8371, where we do this for Function.comp and Function.flip.

This change in Lean may require further changes down the line (e.g. adding the !f syntax, and/or upstreaming the special treatment for Function.comp and Function.flip, and/or removing this special treatment). Please keep an open and skeptical mind about these changes!

Co-authored-by: leanprover-community-mathlib4-bot <leanprover-community-mathlib4-bot@users.noreply.github.com> Co-authored-by: Scott Morrison <scott.morrison@gmail.com> Co-authored-by: Eric Wieser <wieser.eric@gmail.com> Co-authored-by: Mauricio Collares <mauricio@collares.org>

40b64f79

Diff

@@ -16,8 +16,6 @@ Basic facts and derivatives for the complex trigonometric functions.
 
 noncomputable section
 
-local macro_rules | `($x ^ $y) => `(HPow.hPow $x $y) -- Porting note: See issue lean4#2220
-
 namespace Complex
 
 open Set Filter

chore: regularize HPow.hPow porting notes (#6465)

0f85d19f

Diff

@@ -16,7 +16,7 @@ Basic facts and derivatives for the complex trigonometric functions.
 
 noncomputable section
 
-local macro_rules | `($x ^ $y) => `(HPow.hPow $x $y) -- Porting note: See issue #2220
+local macro_rules | `($x ^ $y) => `(HPow.hPow $x $y) -- Porting note: See issue lean4#2220
 
 namespace Complex

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) 2018 Chris Hughes. All rights reserved.
 Released under Apache 2.0 license as described in the file LICENSE.
 Authors: Chris Hughes, Abhimanyu Pallavi Sudhir, Jean Lo, Calle Sönne, Benjamin Davidson
-
-! This file was ported from Lean 3 source module analysis.special_functions.trigonometric.complex_deriv
-! leanprover-community/mathlib commit 2c1d8ca2812b64f88992a5294ea3dba144755cd1
-! Please do not edit these lines, except to modify the commit id
-! if you have ported upstream changes.
 -/
 import Mathlib.Analysis.SpecialFunctions.Trigonometric.Complex
 
+#align_import analysis.special_functions.trigonometric.complex_deriv from "leanprover-community/mathlib"@"2c1d8ca2812b64f88992a5294ea3dba144755cd1"
+
 /-!
 # Complex trigonometric functions