data.fintype.array | 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

78314d08

(last sync)

Changes in mathlib3port

mathlib3

mathlib3port

2fe465de

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) 2017 Mario Carneiro. All rights reserved.
 Released under Apache 2.0 license as described in the file LICENSE.
 Authors: Mario Carneiro
 -/
-import Mathbin.Data.Fintype.Pi
-import Mathbin.Logic.Equiv.Array
+import Data.Fintype.Pi
+import Logic.Equiv.Array
 
 #align_import data.fintype.array from "leanprover-community/mathlib"@"2fe465deb81bcd7ccafa065bb686888a82f15372"

2fe465de

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) 2017 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.fintype.array
-! leanprover-community/mathlib commit 2fe465deb81bcd7ccafa065bb686888a82f15372
-! Please do not edit these lines, except to modify the commit id
-! if you have ported upstream changes.
 -/
 import Mathbin.Data.Fintype.Pi
 import Mathbin.Logic.Equiv.Array
 
+#align_import data.fintype.array from "leanprover-community/mathlib"@"2fe465deb81bcd7ccafa065bb686888a82f15372"
+
 /-!
 # `array n α` is a fintype when `α` is.

2fe465de

bump to nightly-2023-07-16-03

mathlib commit https://github.com/leanprover-community/mathlib/commit/2fe465deb81bcd7ccafa065bb686888a82f15372

bb547586

Diff

@@ -4,7 +4,7 @@ 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.fintype.array
-! leanprover-community/mathlib commit 78314d08d707a6338079f00094bbdb90bf11fc41
+! leanprover-community/mathlib commit 2fe465deb81bcd7ccafa065bb686888a82f15372
 ! Please do not edit these lines, except to modify the commit id
 ! if you have ported upstream changes.
 -/
@@ -13,6 +13,9 @@ import Mathbin.Logic.Equiv.Array
 
 /-!
 # `array n α` is a fintype when `α` is.
+
+> THIS FILE IS SYNCHRONIZED WITH MATHLIB4.
+> Any changes to this file require a corresponding PR to mathlib4.
 -/

78314d08

bump to nightly-2023-07-10-13

mathlib commit https://github.com/leanprover-community/mathlib/commit/1a51edf13debfcbe223fa06b1cb353b9ed9751cc

c08b0455

Diff

@@ -22,7 +22,7 @@ instance DArray.fintype {n : ℕ} {α : Fin n → Type _} [∀ n, Fintype (α n)
   Fintype.ofEquiv _ (Equiv.dArrayEquivFin _).symm
 #align d_array.fintype DArray.fintype
 
-instance Array'.fintype {n : ℕ} {α : Type _} [Fintype α] : Fintype (Array' n α) :=
+instance Vector.fintype {n : ℕ} {α : Type _} [Fintype α] : Fintype (Array' n α) :=
   DArray.fintype
-#align array.fintype Array'.fintype
+#align array.fintype Vector.fintypeₓ

78314d08

bump to nightly-2023-02-21-16

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

1107b979

Changes in mathlib4

mathlib3

mathlib4

78314d08

style: homogenise porting notes (#11145)

Homogenises porting notes via capitalisation and addition of whitespace.

It makes the following changes:

converts "--porting note" into "-- Porting note";
converts "porting note" into "Porting note".

8be0b69c

Diff

@@ -16,13 +16,13 @@ import Mathlib.Logic.Equiv.Array
 
 variable {α : Type*}
 
--- porting note: `DArray` does not exist in std4/mathlib4
+-- Porting note: `DArray` does not exist in std4/mathlib4
 -- instance DArray.fintype {n : ℕ} {α : Fin n → Type*} [∀ n, Fintype (α n)] :
 --     Fintype (DArray n α) :=
 --   Fintype.ofEquiv _ (Equiv.dArrayEquivFin _).symm
 #noalign d_array.fintype
 
--- porting note: The closest thing to `Array' n α` is `Vector n α`, for which we already have this
+-- Porting note: The closest thing to `Array' n α` is `Vector n α`, for which we already have this
 -- intance elsewhere.
 -- instance Array'.fintype {n : ℕ} {α : Type*} [Fintype α] : Fintype (Array' n α) :=
 --   DArray.fintype

78314d08

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

@@ -14,16 +14,16 @@ import Mathlib.Logic.Equiv.Array
 -/
 
 
-variable {α : Type _}
+variable {α : Type*}
 
 -- porting note: `DArray` does not exist in std4/mathlib4
--- instance DArray.fintype {n : ℕ} {α : Fin n → Type _} [∀ n, Fintype (α n)] :
+-- instance DArray.fintype {n : ℕ} {α : Fin n → Type*} [∀ n, Fintype (α n)] :
 --     Fintype (DArray n α) :=
 --   Fintype.ofEquiv _ (Equiv.dArrayEquivFin _).symm
 #noalign d_array.fintype
 
 -- porting note: The closest thing to `Array' n α` is `Vector n α`, for which we already have this
 -- intance elsewhere.
--- instance Array'.fintype {n : ℕ} {α : Type _} [Fintype α] : Fintype (Array' n α) :=
+-- instance Array'.fintype {n : ℕ} {α : Type*} [Fintype α] : Fintype (Array' n α) :=
 --   DArray.fintype
 #align array.fintype Vector.fintypeₓ

78314d08

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

@@ -2,16 +2,13 @@
 Copyright (c) 2017 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.fintype.array
-! leanprover-community/mathlib commit 78314d08d707a6338079f00094bbdb90bf11fc41
-! Please do not edit these lines, except to modify the commit id
-! if you have ported upstream changes.
 -/
 import Mathlib.Data.Fintype.Pi
 import Mathlib.Data.Fintype.Vector
 import Mathlib.Logic.Equiv.Array
 
+#align_import data.fintype.array from "leanprover-community/mathlib"@"78314d08d707a6338079f00094bbdb90bf11fc41"
+
 /-!
 # `align` information for `Fintype` declarations around mathlib3's `array` (now `Vector`)
 -/

78314d08

feat: port Data.Fintype.Array (#5792)

The dashboard says

port, but completely rewrite in terms of the new array

However, the new Array T isn't finite like array n T was, so the rewrite amounts to just deleting everything in the file.

Co-authored-by: Jeremy Tan Jie Rui <reddeloostw@gmail.com>

ddfe2a50

`data.fintype.array` ⟷ `Mathlib.Data.Fintype.Array`

Changes since the initial port

Changes in mathlib3

Changes in mathlib3port

Changes in mathlib4

Dependencies 6 + 214

data.fintype.array ⟷ Mathlib.Data.Fintype.Array

Changes since the initial port

Changes in mathlib3

Changes in mathlib3port

Changes in mathlib4

Dependencies 6 + 214

`data.fintype.array` ⟷ `Mathlib.Data.Fintype.Array`