data.fin.succ_pred | 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

7c523cb7

(last sync)

Changes in mathlib3port

mathlib3

mathlib3port

f2f413b9

bump to nightly-2024-03-17-08

mathlib commit https://github.com/leanprover-community/mathlib/commit/65a1391a0106c9204fe45bc73a039f056558cb83

22f01ce4

Diff

@@ -29,12 +29,12 @@ instance : ∀ {n : ℕ}, SuccOrder (Fin n)
     SuccOrder.ofCore (fun i => if i < Fin.last n then i + 1 else i)
       (by
         intro a ha b
-        rw [isMax_iff_eq_top, eq_top_iff, not_le, top_eq_last] at ha 
+        rw [isMax_iff_eq_top, eq_top_iff, not_le, top_eq_last] at ha
         rw [if_pos ha, lt_iff_coe_lt_coe, le_iff_coe_le_coe, coe_add_one_of_lt ha]
         exact Nat.lt_iff_add_one_le)
       (by
         intro a ha
-        rw [isMax_iff_eq_top, top_eq_last] at ha 
+        rw [isMax_iff_eq_top, top_eq_last] at ha
         rw [if_neg ha.not_lt])
 
 #print Fin.succ_eq /-
@@ -57,14 +57,14 @@ instance : ∀ {n : ℕ}, PredOrder (Fin n)
     PredOrder.ofCore (fun x => if x = 0 then 0 else x - 1)
       (by
         intro a ha b
-        rw [isMin_iff_eq_bot, eq_bot_iff, not_le, bot_eq_zero] at ha 
+        rw [isMin_iff_eq_bot, eq_bot_iff, not_le, bot_eq_zero] at ha
         rw [if_neg ha.ne', lt_iff_coe_lt_coe, le_iff_coe_le_coe, coe_sub_one, if_neg ha.ne',
           le_tsub_iff_right, Iff.comm]
         exact Nat.lt_iff_add_one_le
         exact ha)
       (by
         intro a ha
-        rw [isMin_iff_eq_bot, bot_eq_zero] at ha 
+        rw [isMin_iff_eq_bot, bot_eq_zero] at ha
         rwa [if_pos ha, eq_comm])
 
 #print Fin.pred_eq /-

f2f413b9

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) 2022 Eric Rodriguez. All rights reserved.
 Released under Apache 2.0 license as described in the file LICENSE.
 Authors: Eric Rodriguez
 -/
-import Mathbin.Data.Fin.Basic
-import Mathbin.Order.SuccPred.Basic
+import Data.Fin.Basic
+import Order.SuccPred.Basic
 
 #align_import data.fin.succ_pred from "leanprover-community/mathlib"@"f2f413b9d4be3a02840d0663dace76e8fe3da053"

f2f413b9

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) 2022 Eric Rodriguez. All rights reserved.
 Released under Apache 2.0 license as described in the file LICENSE.
 Authors: Eric Rodriguez
-
-! This file was ported from Lean 3 source module data.fin.succ_pred
-! leanprover-community/mathlib commit f2f413b9d4be3a02840d0663dace76e8fe3da053
-! Please do not edit these lines, except to modify the commit id
-! if you have ported upstream changes.
 -/
 import Mathbin.Data.Fin.Basic
 import Mathbin.Order.SuccPred.Basic
 
+#align_import data.fin.succ_pred from "leanprover-community/mathlib"@"f2f413b9d4be3a02840d0663dace76e8fe3da053"
+
 /-!
 # Successors and predecessors of `fin n`

f2f413b9

bump to nightly-2023-06-13-21

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

829520ac

Diff

@@ -40,15 +40,19 @@ instance : ∀ {n : ℕ}, SuccOrder (Fin n)
         rw [isMax_iff_eq_top, top_eq_last] at ha 
         rw [if_neg ha.not_lt])
 
+#print Fin.succ_eq /-
 @[simp]
 theorem succ_eq {n : ℕ} : SuccOrder.succ = fun a => if a < Fin.last n then a + 1 else a :=
   rfl
 #align fin.succ_eq Fin.succ_eq
+-/
 
+#print Fin.succ_apply /-
 @[simp]
 theorem succ_apply {n : ℕ} (a) : SuccOrder.succ a = if a < Fin.last n then a + 1 else a :=
   rfl
 #align fin.succ_apply Fin.succ_apply
+-/
 
 instance : ∀ {n : ℕ}, PredOrder (Fin n)
   | 0 => by constructor <;> exact elim0
@@ -66,15 +70,19 @@ instance : ∀ {n : ℕ}, PredOrder (Fin n)
         rw [isMin_iff_eq_bot, bot_eq_zero] at ha 
         rwa [if_pos ha, eq_comm])
 
+#print Fin.pred_eq /-
 @[simp]
 theorem pred_eq {n} : PredOrder.pred = fun a : Fin (n + 1) => if a = 0 then 0 else a - 1 :=
   rfl
 #align fin.pred_eq Fin.pred_eq
+-/
 
+#print Fin.pred_apply /-
 @[simp]
 theorem pred_apply {n : ℕ} (a : Fin (n + 1)) : PredOrder.pred a = if a = 0 then 0 else a - 1 :=
   rfl
 #align fin.pred_apply Fin.pred_apply
+-/
 
 end Fin

f2f413b9

bump to nightly-2023-06-01-16

mathlib commit https://github.com/leanprover-community/mathlib/commit/cca40788df1b8755d5baf17ab2f27dacc2e17acb

b9c87c70

Diff

@@ -32,12 +32,12 @@ instance : ∀ {n : ℕ}, SuccOrder (Fin n)
     SuccOrder.ofCore (fun i => if i < Fin.last n then i + 1 else i)
       (by
         intro a ha b
-        rw [isMax_iff_eq_top, eq_top_iff, not_le, top_eq_last] at ha
+        rw [isMax_iff_eq_top, eq_top_iff, not_le, top_eq_last] at ha 
         rw [if_pos ha, lt_iff_coe_lt_coe, le_iff_coe_le_coe, coe_add_one_of_lt ha]
         exact Nat.lt_iff_add_one_le)
       (by
         intro a ha
-        rw [isMax_iff_eq_top, top_eq_last] at ha
+        rw [isMax_iff_eq_top, top_eq_last] at ha 
         rw [if_neg ha.not_lt])
 
 @[simp]
@@ -56,14 +56,14 @@ instance : ∀ {n : ℕ}, PredOrder (Fin n)
     PredOrder.ofCore (fun x => if x = 0 then 0 else x - 1)
       (by
         intro a ha b
-        rw [isMin_iff_eq_bot, eq_bot_iff, not_le, bot_eq_zero] at ha
+        rw [isMin_iff_eq_bot, eq_bot_iff, not_le, bot_eq_zero] at ha 
         rw [if_neg ha.ne', lt_iff_coe_lt_coe, le_iff_coe_le_coe, coe_sub_one, if_neg ha.ne',
           le_tsub_iff_right, Iff.comm]
         exact Nat.lt_iff_add_one_le
         exact ha)
       (by
         intro a ha
-        rw [isMin_iff_eq_bot, bot_eq_zero] at ha
+        rw [isMin_iff_eq_bot, bot_eq_zero] at ha 
         rwa [if_pos ha, eq_comm])
 
 @[simp]

f2f413b9

bump to nightly-2023-05-28-06

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

ba5d8b97

Diff

@@ -40,23 +40,11 @@ instance : ∀ {n : ℕ}, SuccOrder (Fin n)
         rw [isMax_iff_eq_top, top_eq_last] at ha
         rw [if_neg ha.not_lt])
 
-/- warning: fin.succ_eq -> Fin.succ_eq is a dubious translation:
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-Case conversion may be inaccurate. Consider using '#align fin.succ_eq Fin.succ_eqₓ'. -/
 @[simp]
 theorem succ_eq {n : ℕ} : SuccOrder.succ = fun a => if a < Fin.last n then a + 1 else a :=
   rfl
 #align fin.succ_eq Fin.succ_eq
 
-/- warning: fin.succ_apply -> Fin.succ_apply is a dubious translation:
-lean 3 declaration is
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-Case conversion may be inaccurate. Consider using '#align fin.succ_apply Fin.succ_applyₓ'. -/
 @[simp]
 theorem succ_apply {n : ℕ} (a) : SuccOrder.succ a = if a < Fin.last n then a + 1 else a :=
   rfl
@@ -78,23 +66,11 @@ instance : ∀ {n : ℕ}, PredOrder (Fin n)
         rw [isMin_iff_eq_bot, bot_eq_zero] at ha
         rwa [if_pos ha, eq_comm])
 
-/- warning: fin.pred_eq -> Fin.pred_eq is a dubious translation:
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-Case conversion may be inaccurate. Consider using '#align fin.pred_eq Fin.pred_eqₓ'. -/
 @[simp]
 theorem pred_eq {n} : PredOrder.pred = fun a : Fin (n + 1) => if a = 0 then 0 else a - 1 :=
   rfl
 #align fin.pred_eq Fin.pred_eq
 
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-Case conversion may be inaccurate. Consider using '#align fin.pred_apply Fin.pred_applyₓ'. -/
 @[simp]
 theorem pred_apply {n : ℕ} (a : Fin (n + 1)) : PredOrder.pred a = if a = 0 then 0 else a - 1 :=
   rfl

f2f413b9

bump to nightly-2023-02-21-16

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

1107b979

Changes in mathlib4

mathlib3

mathlib4

7c523cb7

chore: remove tactics (#11365)

More tactics that are not used, found using the linter at #11308.

The PR consists of tactic removals, whitespace changes and replacing a porting note by an explanation.

c33c2724

Diff

@@ -21,7 +21,7 @@ to a specific `Fin` instance.
 namespace Fin
 
 instance : ∀ {n : ℕ}, SuccOrder (Fin n)
-  | 0 => by constructor <;> first | assumption | intro a; exact elim0 a
+  | 0 => by constructor <;> intro a <;> exact elim0 a
   | n + 1 =>
     SuccOrder.ofCore (fun i => if i < Fin.last n then i + 1 else i)
       (by
@@ -47,7 +47,7 @@ theorem succ_apply {n : ℕ} (a) : SuccOrder.succ a = if a < Fin.last n then a +
 #align fin.succ_apply Fin.succ_apply
 
 instance : ∀ {n : ℕ}, PredOrder (Fin n)
-  | 0 => by constructor <;> first | assumption | intro a; exact elim0 a
+  | 0 => by constructor <;> first | intro a; exact elim0 a
   | n + 1 =>
     PredOrder.ofCore (fun x => if x = 0 then 0 else x - 1)
       (by

7c523cb7

chore(Data/Fin/Basic): drop an import (#10467)

This removes the following files from the import closure of Data.Fin.Basic:

Mathlib.Algebra.Group.Equiv.Basic
Mathlib.Algebra.Group.Hom.Basic
Mathlib.Algebra.Group.InjSurj
Mathlib.Algebra.Group.OrderSynonym
Mathlib.Algebra.Group.Units.Equiv
Mathlib.Algebra.Group.Units.Hom
Mathlib.Algebra.GroupWithZero.Basic
Mathlib.Algebra.GroupWithZero.InjSurj
Mathlib.Algebra.GroupWithZero.Units.Basic
Mathlib.Algebra.GroupWithZero.Units.Equiv
Mathlib.Algebra.Order.Group.Units
Mathlib.Algebra.Order.Monoid.Basic
Mathlib.Algebra.Order.Monoid.OrderDual
Mathlib.Algebra.Order.Monoid.TypeTags
Mathlib.Algebra.Order.Monoid.Units
Mathlib.Algebra.Order.WithZero
Mathlib.Data.Int.Cast.Basic

583592fb

Diff

@@ -55,8 +55,7 @@ instance : ∀ {n : ℕ}, PredOrder (Fin n)
         rw [isMin_iff_eq_bot, eq_bot_iff, not_le, bot_eq_zero] at ha
         dsimp
         rw [if_neg ha.ne', lt_iff_val_lt_val, le_iff_val_le_val, coe_sub_one, if_neg ha.ne',
-          le_tsub_iff_right, Iff.comm]
-        exact Nat.lt_iff_add_one_le
+          Nat.lt_iff_add_one_le, Nat.le_sub_iff_add_le]
         exact ha)
       (by
         intro a ha

7c523cb7

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) 2022 Eric Rodriguez. All rights reserved.
 Released under Apache 2.0 license as described in the file LICENSE.
 Authors: Eric Rodriguez
-
-! This file was ported from Lean 3 source module data.fin.succ_pred
-! leanprover-community/mathlib commit 7c523cb78f4153682c2929e3006c863bfef463d0
-! Please do not edit these lines, except to modify the commit id
-! if you have ported upstream changes.
 -/
 import Mathlib.Data.Fin.Basic
 import Mathlib.Order.SuccPred.Basic
 
+#align_import data.fin.succ_pred from "leanprover-community/mathlib"@"7c523cb78f4153682c2929e3006c863bfef463d0"
+
 /-!
 # Successors and predecessors of `Fin n`

7c523cb7

Feat: Port/data.fin.succ_pred (#1511)

Port of data.fin.succ_pred to Data.Fin.SuccPred

6d0f7fe0

`data.fin.succ_pred` ⟷ `Mathlib.Data.Fin.SuccPred`

Changes since the initial port

Changes in mathlib3

Changes in mathlib3port

Changes in mathlib4

Dependencies 1 + 118

data.fin.succ_pred ⟷ Mathlib.Data.Fin.SuccPred

Changes since the initial port

Changes in mathlib3

Changes in mathlib3port

Changes in mathlib4

Dependencies 1 + 118

`data.fin.succ_pred` ⟷ `Mathlib.Data.Fin.SuccPred`