data.char | 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

c4658a64

(last sync)

Changes in mathlib3port

mathlib3

mathlib3port

448144f7

bump to nightly-2023-07-20-09

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

9c56d0dd

Diff

@@ -2,13 +2,10 @@
 Copyright (c) 2018 Mario Carneiro. All rights reserved.
 Released under Apache 2.0 license as described in the file LICENSE.
 Authors: Mario Carneiro
-
-! This file was ported from Lean 3 source module data.char
-! leanprover-community/mathlib commit 448144f7ae193a8990cb7473c9e9a01990f64ac7
-! Please do not edit these lines, except to modify the commit id
-! if you have ported upstream changes.
 -/
 
+#align_import data.char from "leanprover-community/mathlib"@"448144f7ae193a8990cb7473c9e9a01990f64ac7"
+
 /-!
 # More `char` instances

448144f7

bump to nightly-2023-02-21-16

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

1107b979

Changes in mathlib4

mathlib3

mathlib4

c4658a64

chore: cleanup in Mathlib.Init (#6977)

Co-authored-by: Scott Morrison <scott.morrison@gmail.com>

8f46576d

Diff

@@ -4,7 +4,7 @@ Released under Apache 2.0 license as described in the file LICENSE.
 Authors: Mario Carneiro
 -/
 import Mathlib.Data.UInt
-import Mathlib.Init.Algebra.Order
+import Mathlib.Init.Order.Defs
 
 #align_import data.char from "leanprover-community/mathlib"@"c4658a649d216f57e99621708b09dcb3dcccbd23"

c4658a64

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) 2018 Mario Carneiro. All rights reserved.
 Released under Apache 2.0 license as described in the file LICENSE.
 Authors: Mario Carneiro
-
-! This file was ported from Lean 3 source module data.char
-! leanprover-community/mathlib commit c4658a649d216f57e99621708b09dcb3dcccbd23
-! Please do not edit these lines, except to modify the commit id
-! if you have ported upstream changes.
 -/
 import Mathlib.Data.UInt
 import Mathlib.Init.Algebra.Order
 
+#align_import data.char from "leanprover-community/mathlib"@"c4658a649d216f57e99621708b09dcb3dcccbd23"
+
 /-!
 # More `Char` instances

c4658a64

chore: cleanup whitespace (#5988)

Grepping for [^ .:{-] [^ :] and reviewing the results. Once I started I couldn't stop. :-)

Co-authored-by: Scott Morrison <scott.morrison@gmail.com>

12343aa5

Diff

@@ -32,7 +32,7 @@ Provides a `LinearOrder` instance on `Char`. `Char` is the type of Unicode scala
 -/
 instance : LinearOrder Char where
   le_refl := fun _ => @le_refl ℕ _ _
-  le_trans := fun _ _ _  => @le_trans ℕ _ _ _ _
+  le_trans := fun _ _ _ => @le_trans ℕ _ _ _ _
   le_antisymm := fun _ _ h₁ h₂ => Char.eq_of_val_eq <| UInt32.eq_of_val_eq <| Fin.ext <|
     @le_antisymm ℕ _ _ _ h₁ h₂
   lt_iff_le_not_le := fun _ _ => @lt_iff_le_not_le ℕ _ _ _

c4658a64

chore: bump dependencies (#4012)

This just bumps the Std dependency, to get access to Mario's new "Try this:" implementation.

Co-authored-by: Bulhwi Cha <chabulhwi@semmalgil.com> Co-authored-by: Kyle Miller <kmill31415@gmail.com> Co-authored-by: Scott Morrison <scott.morrison@anu.edu.au> Co-authored-by: Scott Morrison <scott.morrison@gmail.com> Co-authored-by: Mario Carneiro <di.gama@gmail.com>

f513eb6d

Diff

@@ -27,8 +27,6 @@ theorem Char.utf8Size_pos (c : Char) : 0 < c.utf8Size := by
   repeat (split; decide)
   decide
 
-theorem String.csize_pos : (c : Char) → 0 < String.csize c := Char.utf8Size_pos
-
 /--
 Provides a `LinearOrder` instance on `Char`. `Char` is the type of Unicode scalar values.
 -/

c4658a64

fix: correct names of LinearOrder decidable fields (#4006)

This renames

decidable_eq to decidableEq
decidable_lt to decidableLT
decidable_le to decidableLE
decidableLT_of_decidableLE to decidableLTOfDecidableLE
decidableEq_of_decidableLE to decidableEqOfDecidableLE

These fields are data not proofs, so they should be lowerCamelCased.

e7280432

Diff

@@ -41,7 +41,7 @@ instance : LinearOrder Char where
   le_total := fun _ _ => @le_total ℕ _ _ _
   min := fun a b => if a ≤ b then a else b
   max := fun a b => if a ≤ b then b else a
-  decidable_le := inferInstance
+  decidableLE := inferInstance
 
 theorem Char.ofNat_toNat {c : Char} (h : isValidCharNat c.toNat) : Char.ofNat c.toNat = c := by
   rw [Char.ofNat, dif_pos h]

c4658a64

chore: add source headers to ported theory files (#1094)

The script used to do this is included. The yaml file was obtained from https://raw.githubusercontent.com/wiki/leanprover-community/mathlib/mathlib4-port-status.md

f168625e

Diff

@@ -2,6 +2,11 @@
 Copyright (c) 2018 Mario Carneiro. All rights reserved.
 Released under Apache 2.0 license as described in the file LICENSE.
 Authors: Mario Carneiro
+
+! This file was ported from Lean 3 source module data.char
+! leanprover-community/mathlib commit c4658a649d216f57e99621708b09dcb3dcccbd23
+! Please do not edit these lines, except to modify the commit id
+! if you have ported upstream changes.
 -/
 import Mathlib.Data.UInt
 import Mathlib.Init.Algebra.Order

`data.char` ⟷ `Mathlib.Data.Char`

Changes since the initial port

Changes in mathlib3

Changes in mathlib3port

Changes in mathlib4

Dependencies

data.char ⟷ Mathlib.Data.Char

Changes since the initial port

Changes in mathlib3

Changes in mathlib3port

Changes in mathlib4

Dependencies

`data.char` ⟷ `Mathlib.Data.Char`