seminorm_lattice_not_distrib | 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

32837559

(last sync)

Changes in mathlib3port

mathlib3

mathlib3port

08b081ea

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) 2022 Pierre-Alexandre Bazin. All rights reserved.
 Released under Apache 2.0 license as described in the file LICENSE.
 Authors: Pierre-Alexandre Bazin
 -/
-import Mathbin.Analysis.Seminorm
+import Analysis.Seminorm
 
 #align_import seminorm_lattice_not_distrib from "leanprover-community/mathlib"@"08b081ea92d80e3a41f899eea36ef6d56e0f1db0"

08b081ea

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) 2022 Pierre-Alexandre Bazin. All rights reserved.
 Released under Apache 2.0 license as described in the file LICENSE.
 Authors: Pierre-Alexandre Bazin
-
-! This file was ported from Lean 3 source module seminorm_lattice_not_distrib
-! leanprover-community/mathlib commit 08b081ea92d80e3a41f899eea36ef6d56e0f1db0
-! Please do not edit these lines, except to modify the commit id
-! if you have ported upstream changes.
 -/
 import Mathbin.Analysis.Seminorm
 
+#align_import seminorm_lattice_not_distrib from "leanprover-community/mathlib"@"08b081ea92d80e3a41f899eea36ef6d56e0f1db0"
+
 /-!
 # The lattice of seminorms is not distributive

08b081ea

bump to nightly-2023-07-17-03

mathlib commit https://github.com/leanprover-community/mathlib/commit/bf2428c9486c407ca38b5b3fb10b87dad0bc99fa

a159b65f

Diff

@@ -4,7 +4,7 @@ Released under Apache 2.0 license as described in the file LICENSE.
 Authors: Pierre-Alexandre Bazin
 
 ! This file was ported from Lean 3 source module seminorm_lattice_not_distrib
-! leanprover-community/mathlib commit 328375597f2c0dd00522d9c2e5a33b6a6128feeb
+! leanprover-community/mathlib commit 08b081ea92d80e3a41f899eea36ef6d56e0f1db0
 ! 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.Seminorm
 /-!
 # The lattice of seminorms is not distributive
 
+> THIS FILE IS SYNCHRONIZED WITH MATHLIB4.
+> Any changes to this file require a corresponding PR to mathlib4.
+
 We provide an example of three seminorms over the ℝ-vector space ℝ×ℝ which don't satisfy the lattice
 distributivity property `(p ⊔ q1) ⊓ (p ⊔ q2) ≤ p ⊔ (q1 ⊓ q2)`.

32837559

bump to nightly-2023-06-09-07

mathlib commit https://github.com/leanprover-community/mathlib/commit/7e5137f579de09a059a5ce98f364a04e221aabf0

16afdc39

Diff

@@ -72,7 +72,6 @@ theorem not_distrib : ¬(p ⊔ q1) ⊓ (p ⊔ q2) ≤ p ⊔ q1 ⊓ q2 :=
         _ = q2 ((1, 1) - x) := rfl
         _ ≤ (p ⊔ q2) ((1, 1) - x) := le_sup_right
         _ ≤ (p ⊔ q1) x + (p ⊔ q2) ((1, 1) - x) := le_add_of_nonneg_left (map_nonneg _ _)
-        
     ·
       calc
         4 / 3 = 2 / 3 + (1 - 1 / 3) := by norm_num
@@ -80,7 +79,6 @@ theorem not_distrib : ¬(p ⊔ q1) ⊓ (p ⊔ q2) ≤ p ⊔ q1 ⊓ q2 :=
         _ ≤ |x.snd| + |1 - x.fst| := (add_le_add (le_abs_self _) (le_abs_self _))
         _ ≤ p x + p ((1, 1) - x) := (add_le_add le_sup_right le_sup_left)
         _ ≤ (p ⊔ q1) x + (p ⊔ q2) ((1, 1) - x) := add_le_add le_sup_left le_sup_left
-        
   ·
     calc
       4 / 3 = 4 * (1 / 3) := by norm_num
@@ -89,7 +87,6 @@ theorem not_distrib : ¬(p ⊔ q1) ⊓ (p ⊔ q2) ≤ p ⊔ q1 ⊓ q2 :=
       _ = q1 x := rfl
       _ ≤ (p ⊔ q1) x := le_sup_right
       _ ≤ (p ⊔ q1) x + (p ⊔ q2) ((1, 1) - x) := le_add_of_nonneg_right (map_nonneg _ _)
-      
 #align counterexample.seminorm_not_distrib.not_distrib Counterexample.SeminormNotDistrib.not_distrib
 
 end SeminormNotDistrib

32837559

bump to nightly-2023-06-07-01

mathlib commit https://github.com/leanprover-community/mathlib/commit/a3209ddf94136d36e5e5c624b10b2a347cc9d090

176da745

Changes in mathlib4

mathlib3

mathlib4

32837559

chore(NonnegHomClass): rename map_nonneg to apply_nonneg (#10507)

... to avoid conflict with _root_.map_nonneg, see Zulip.

2ee70d2c

Diff

@@ -65,7 +65,7 @@ theorem not_distrib : ¬(p ⊔ q1) ⊓ (p ⊔ q2) ≤ p ⊔ q1 ⊓ q2 := by
         _ ≤ 4 * |1 - x.snd| := by gcongr; apply le_abs_self
         _ = q2 ((1, 1) - x) := by simp; rfl
         _ ≤ (p ⊔ q2) ((1, 1) - x) := le_sup_right
-        _ ≤ (p ⊔ q1) x + (p ⊔ q2) ((1, 1) - x) := le_add_of_nonneg_left (map_nonneg _ _)
+        _ ≤ (p ⊔ q1) x + (p ⊔ q2) ((1, 1) - x) := le_add_of_nonneg_left (apply_nonneg _ _)
     · calc
         4 / 3 = 2 / 3 + (1 - 1 / 3) := by norm_num
         _ ≤ x.snd + (1 - x.fst) := by gcongr
@@ -78,7 +78,7 @@ theorem not_distrib : ¬(p ⊔ q1) ⊓ (p ⊔ q2) ≤ p ⊔ q1 ⊓ q2 := by
       _ ≤ 4 * |x.fst| := by gcongr; apply le_abs_self
       _ = q1 x := rfl
       _ ≤ (p ⊔ q1) x := le_sup_right
-      _ ≤ (p ⊔ q1) x + (p ⊔ q2) ((1, 1) - x) := le_add_of_nonneg_right (map_nonneg _ _)
+      _ ≤ (p ⊔ q1) x + (p ⊔ q2) ((1, 1) - x) := le_add_of_nonneg_right (apply_nonneg _ _)
 #align counterexample.seminorm_not_distrib.not_distrib Counterexample.SeminormNotDistrib.not_distrib
 
 end SeminormNotDistrib

32837559

chore(*): golf, mostly using gcongr/positivity (#9546)

b2daba4a

Diff

@@ -61,21 +61,21 @@ theorem not_distrib : ¬(p ⊔ q1) ⊓ (p ⊔ q2) ≤ p ⊔ q1 ⊓ q2 := by
   · rcases le_or_lt x.snd (2 / 3) with h2 | h2
     · calc
         4 / 3 = 4 * (1 - 2 / 3) := by norm_num
-        _ ≤ 4 * (1 - x.snd) := (mul_le_mul_left zero_lt_four).mpr (sub_le_sub_left h2 _)
-        _ ≤ 4 * |1 - x.snd| := (mul_le_mul_left zero_lt_four).mpr (le_abs_self _)
+        _ ≤ 4 * (1 - x.snd) := by gcongr
+        _ ≤ 4 * |1 - x.snd| := by gcongr; apply le_abs_self
         _ = q2 ((1, 1) - x) := by simp; rfl
         _ ≤ (p ⊔ q2) ((1, 1) - x) := le_sup_right
         _ ≤ (p ⊔ q1) x + (p ⊔ q2) ((1, 1) - x) := le_add_of_nonneg_left (map_nonneg _ _)
     · calc
         4 / 3 = 2 / 3 + (1 - 1 / 3) := by norm_num
-        _ ≤ x.snd + (1 - x.fst) := add_le_add (le_of_lt h2) (sub_le_sub_left h1 _)
+        _ ≤ x.snd + (1 - x.fst) := by gcongr
         _ ≤ |x.snd| + |1 - x.fst| := add_le_add (le_abs_self _) (le_abs_self _)
         _ ≤ p x + p ((1, 1) - x) := by exact add_le_add le_sup_right le_sup_left
         _ ≤ (p ⊔ q1) x + (p ⊔ q2) ((1, 1) - x) := add_le_add le_sup_left le_sup_left
   · calc
       4 / 3 = 4 * (1 / 3) := by norm_num
-      _ ≤ 4 * x.fst := (mul_le_mul_left zero_lt_four).mpr (le_of_lt h1)
-      _ ≤ 4 * |x.fst| := (mul_le_mul_left zero_lt_four).mpr (le_abs_self _)
+      _ ≤ 4 * x.fst := by gcongr
+      _ ≤ 4 * |x.fst| := by gcongr; apply le_abs_self
       _ = q1 x := rfl
       _ ≤ (p ⊔ q1) x := le_sup_right
       _ ≤ (p ⊔ q1) x + (p ⊔ q2) ((1, 1) - x) := le_add_of_nonneg_right (map_nonneg _ _)

32837559

chore: remove uses of cases' (#9171)

I literally went through and regex'd some uses of cases', replacing them with rcases; this is meant to be a low effort PR as I hope that tools can do this in the future.

rcases is an easier replacement than cases, though with better tools we could in future do a second pass converting simple rcases added here (and existing ones) to cases.

3fca282c

Diff

@@ -57,8 +57,8 @@ theorem not_distrib : ¬(p ⊔ q1) ⊓ (p ⊔ q2) ≤ p ⊔ q1 ⊓ q2 := by
   apply c; nth_rw 1 [← eq_one]
   apply le_trans _ (le_sup_inf _)
   apply le_ciInf; intro x
-  cases' le_or_lt x.fst (1 / 3) with h1 h1
-  · cases' le_or_lt x.snd (2 / 3) with h2 h2
+  rcases le_or_lt x.fst (1 / 3) with h1 | h1
+  · rcases le_or_lt x.snd (2 / 3) with h2 | h2
     · calc
         4 / 3 = 4 * (1 - 2 / 3) := by norm_num
         _ ≤ 4 * (1 - x.snd) := (mul_le_mul_left zero_lt_four).mpr (sub_le_sub_left h2 _)

32837559

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) 2022 Pierre-Alexandre Bazin. All rights reserved.
 Released under Apache 2.0 license as described in the file LICENSE.
 Authors: Pierre-Alexandre Bazin
-
-! This file was ported from Lean 3 source module seminorm_lattice_not_distrib
-! leanprover-community/mathlib commit 328375597f2c0dd00522d9c2e5a33b6a6128feeb
-! Please do not edit these lines, except to modify the commit id
-! if you have ported upstream changes.
 -/
 import Mathlib.Analysis.Seminorm
 
+#align_import seminorm_lattice_not_distrib from "leanprover-community/mathlib"@"328375597f2c0dd00522d9c2e5a33b6a6128feeb"
+
 /-!
 # The lattice of seminorms is not distributive

32837559

fix: precedences of ⨆⋃⋂⨅ (#5614)

e3c8f983

Diff

@@ -48,7 +48,7 @@ noncomputable def q2 : Seminorm ℝ (ℝ × ℝ) :=
 #align counterexample.seminorm_not_distrib.q2 Counterexample.SeminormNotDistrib.q2
 
 theorem eq_one : (p ⊔ q1 ⊓ q2) (1, 1) = 1 := by
-  suffices (⨅ x : ℝ × ℝ, q1 x + q2 (1 - x)) ≤ 1 by simpa
+  suffices ⨅ x : ℝ × ℝ, q1 x + q2 (1 - x) ≤ 1 by simpa
   apply ciInf_le_of_le bddBelow_range_add ((0, 1) : ℝ × ℝ); dsimp [q1, q2]
   simp only [abs_zero, smul_zero, sub_self, add_zero, zero_le_one]
 #align counterexample.seminorm_not_distrib.eq_one Counterexample.SeminormNotDistrib.eq_one

32837559

feat: port NumberTheory.DiophantineApproximation (#5126)

851314e3

`seminorm_lattice_not_distrib` ⟷ `Counterexamples.SeminormLatticeNotDistrib`

Changes since the initial port

Changes in mathlib3

Changes in mathlib3port

Changes in mathlib4

Dependencies 10 + 626

seminorm_lattice_not_distrib ⟷ Counterexamples.SeminormLatticeNotDistrib

Changes since the initial port

Changes in mathlib3

Changes in mathlib3port

Changes in mathlib4

Dependencies 10 + 626

`seminorm_lattice_not_distrib` ⟷ `Counterexamples.SeminormLatticeNotDistrib`