algebra.order.ring.char_zero | 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

655994e2

(last sync)

Changes in mathlib3port

mathlib3

mathlib3port

448144f7

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) 2016 Jeremy Avigad. All rights reserved.
 Released under Apache 2.0 license as described in the file LICENSE.
 Authors: Jeremy Avigad, Leonardo de Moura, Mario Carneiro
 -/
-import Mathbin.Algebra.CharZero.Defs
-import Mathbin.Algebra.Order.Ring.Defs
+import Algebra.CharZero.Defs
+import Algebra.Order.Ring.Defs
 
 #align_import algebra.order.ring.char_zero from "leanprover-community/mathlib"@"448144f7ae193a8990cb7473c9e9a01990f64ac7"

448144f7

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) 2016 Jeremy Avigad. All rights reserved.
 Released under Apache 2.0 license as described in the file LICENSE.
 Authors: Jeremy Avigad, Leonardo de Moura, Mario Carneiro
-
-! This file was ported from Lean 3 source module algebra.order.ring.char_zero
-! leanprover-community/mathlib commit 448144f7ae193a8990cb7473c9e9a01990f64ac7
-! Please do not edit these lines, except to modify the commit id
-! if you have ported upstream changes.
 -/
 import Mathbin.Algebra.CharZero.Defs
 import Mathbin.Algebra.Order.Ring.Defs
 
+#align_import algebra.order.ring.char_zero from "leanprover-community/mathlib"@"448144f7ae193a8990cb7473c9e9a01990f64ac7"
+
 /-!
 # Strict ordered semiring have characteristic zero

448144f7

bump to nightly-2023-05-28-04

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

6797a637

Diff

@@ -26,9 +26,7 @@ variable {α : Type _}
 instance (priority := 100) StrictOrderedSemiring.to_charZero [StrictOrderedSemiring α] :
     CharZero α :=
   ⟨StrictMono.injective <|
-      strictMono_nat_of_lt_succ fun n => by
-        rw [Nat.cast_succ]
-        apply lt_add_one⟩
+      strictMono_nat_of_lt_succ fun n => by rw [Nat.cast_succ]; apply lt_add_one⟩
 #align strict_ordered_semiring.to_char_zero StrictOrderedSemiring.to_charZero
 -/

448144f7

bump to nightly-2023-02-21-16

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

1107b979

Changes in mathlib4

mathlib3

mathlib4

655994e2

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

@@ -13,7 +13,7 @@ import Mathlib.Algebra.Order.Ring.Defs
 -/
 
 
-variable {α : Type _}
+variable {α : Type*}
 
 -- see Note [lower instance priority]
 instance (priority := 100) StrictOrderedSemiring.to_charZero [StrictOrderedSemiring α] :

655994e2

chore: remove 'Ported by' headers (#6018)

Briefly during the port we were adding "Ported by" headers, but only ~60 / 3000 files ended up with such a header.

I propose deleting them.

We could consider adding these uniformly via a script, as part of the great history rewrite...?

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

e8318a88

Diff

@@ -2,7 +2,6 @@
 Copyright (c) 2016 Jeremy Avigad. All rights reserved.
 Released under Apache 2.0 license as described in the file LICENSE.
 Authors: Jeremy Avigad, Leonardo de Moura, Mario Carneiro
-Ported by: Scott Morrison
 -/
 import Mathlib.Algebra.CharZero.Defs
 import Mathlib.Algebra.Order.Ring.Defs

655994e2

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

@@ -3,15 +3,12 @@ Copyright (c) 2016 Jeremy Avigad. All rights reserved.
 Released under Apache 2.0 license as described in the file LICENSE.
 Authors: Jeremy Avigad, Leonardo de Moura, Mario Carneiro
 Ported by: Scott Morrison
-
-! This file was ported from Lean 3 source module algebra.order.ring.char_zero
-! leanprover-community/mathlib commit 655994e298904d7e5bbd1e18c95defd7b543eb94
-! Please do not edit these lines, except to modify the commit id
-! if you have ported upstream changes.
 -/
 import Mathlib.Algebra.CharZero.Defs
 import Mathlib.Algebra.Order.Ring.Defs
 
+#align_import algebra.order.ring.char_zero from "leanprover-community/mathlib"@"655994e298904d7e5bbd1e18c95defd7b543eb94"
+
 /-!
 # Strict ordered semiring have characteristic zero
 -/

655994e2

chore: fix more casing errors per naming scheme (#1232)

I've avoided anything under Tactic or test.

In correcting the names, I found Option.isNone_iff_eq_none duplicated between Std and Mathlib, so the Mathlib one has been removed.

Co-authored-by: Reid Barton <rwbarton@gmail.com>

31a56f75

Diff

@@ -20,10 +20,10 @@ import Mathlib.Algebra.Order.Ring.Defs
 variable {α : Type _}
 
 -- see Note [lower instance priority]
-instance (priority := 100) StrictOrderedSemiring.to_char_zero [StrictOrderedSemiring α] :
+instance (priority := 100) StrictOrderedSemiring.to_charZero [StrictOrderedSemiring α] :
     CharZero α :=
   ⟨StrictMono.injective <|
       strictMono_nat_of_lt_succ fun n => by
         rw [Nat.cast_succ]
         apply lt_add_one⟩
-#align strict_ordered_semiring.to_char_zero StrictOrderedSemiring.to_char_zero
+#align strict_ordered_semiring.to_char_zero StrictOrderedSemiring.to_charZero

655994e2

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

@@ -3,6 +3,11 @@ Copyright (c) 2016 Jeremy Avigad. All rights reserved.
 Released under Apache 2.0 license as described in the file LICENSE.
 Authors: Jeremy Avigad, Leonardo de Moura, Mario Carneiro
 Ported by: Scott Morrison
+
+! This file was ported from Lean 3 source module algebra.order.ring.char_zero
+! leanprover-community/mathlib commit 655994e298904d7e5bbd1e18c95defd7b543eb94
+! Please do not edit these lines, except to modify the commit id
+! if you have ported upstream changes.
 -/
 import Mathlib.Algebra.CharZero.Defs
 import Mathlib.Algebra.Order.Ring.Defs

`algebra.order.ring.char_zero` ⟷ `Mathlib.Algebra.Order.Ring.CharZero`

Changes since the initial port

Changes in mathlib3

Changes in mathlib3port

Changes in mathlib4

Dependencies 1 + 59

algebra.order.ring.char_zero ⟷ Mathlib.Algebra.Order.Ring.CharZero

Changes since the initial port

Changes in mathlib3

Changes in mathlib3port

Changes in mathlib4

Dependencies 1 + 59

`algebra.order.ring.char_zero` ⟷ `Mathlib.Algebra.Order.Ring.CharZero`