Update to lean v4.3.0

.gitignore

@@ -4,6 +4,7 @@ lakefile.olean
 lake-packages
 _target
 leanpkg.path
+.lake/
 
 # TeX
 *.aux

Bookshelf/Apostol/Chapter_1_11.lean

@@ -50,7 +50,7 @@ theorem exercise_4c (x y : ℝ)
   : ⌊x + y⌋ = ⌊x⌋ + ⌊y⌋ ∨ ⌊x + y⌋ = ⌊x⌋ + ⌊y⌋ + 1 := by
   have hx : x = Int.floor x + Int.fract x := Eq.symm (add_eq_of_eq_sub' rfl)
   have hy : y = Int.floor y + Int.fract y := Eq.symm (add_eq_of_eq_sub' rfl)
-  by_cases Int.fract x + Int.fract y < 1
+  by_cases h : Int.fract x + Int.fract y < 1
   · refine Or.inl ?_
     rw [Int.floor_eq_iff]
     simp only [Int.cast_add]

Bookshelf/Apostol/Chapter_I_03.lean

@@ -1,5 +1,5 @@
 import Common.Set
-import Mathlib.Data.Real.Basic
+import Mathlib.Data.Real.Archimedean
 
 /-! # Apostol.Chapter_I_03
 

Bookshelf/Enderton/Logic/Chapter_1.lean

@@ -481,7 +481,7 @@ theorem exercise_1_2_2b_iii {k : ℕ} (h : Odd k)
       exact absurd hr hk
     unfold σ
     rw [hn₁]
-    simp only [Nat.add_eq, add_zero, not_forall, exists_prop, and_true]
+    simp only [Nat.add_eq, add_zero, imp_false, not_not]
     exact exercise_1_2_2b_i False Q hn₂
 
 end Exercise_1_2_2

Bookshelf/Enderton/Set/Chapter_2.lean

@@ -616,7 +616,7 @@ lemma right_diff_eq_insert_one_three : A \ (B \ C) = {1, 3} := by
       rw [hy] at hz
       unfold Membership.mem Set.instMembershipSet Set.Mem at hz
       unfold singleton Set.instSingletonSet Set.singleton setOf at hz
-      simp only at hz
+      simp at hz
     · intro hy
       refine ⟨Or.inr (Or.inr hy), ?_⟩
       intro hz

Bookshelf/Enderton/Set/Chapter_3.lean

@@ -542,7 +542,7 @@ theorem exercise_3_1 {x y z u v w : ℕ}
   · rw [hx, hy, hz, hu, hv, hw]
     simp
   · rw [hy, hv]
-    simp only
+    simp
 
 /-- ### Exercise 3.2a
 

Bookshelf/Enderton/Set/Chapter_4.lean

@@ -702,7 +702,7 @@ theorem exercise_4_17 (m n p : ℕ)
   | zero => calc m ^ (n + 0)
     _ = m ^ n := rfl
     _ = m ^ n * 1 := by rw [right_mul_id]
-    _ = m ^ n * m ^ 0 := rfl
+    _ = m ^ n * m ^ 0 := by rfl
   | succ p ih => calc m ^ (n + p.succ)
     _ = m ^ (n + p).succ := rfl
     _ = m ^ (n + p) * m := rfl

Bookshelf/Enderton/Set/Chapter_6.lean

@@ -512,7 +512,7 @@ theorem corollary_6d_b
     ]
     refine ⟨1, ?_⟩
     intro x nx
-    simp only [mul_eq_one, false_and] at nx
+    simp only [mul_eq_one, OfNat.ofNat_ne_one, false_and] at nx
 
 /-- ### Corollary 6E
 
@@ -992,7 +992,7 @@ lemma sdiff_size_aux [DecidableEq α] [Nonempty α]
       simp only [Set.diff_empty]
       exact hA
     rw [this]
-    refine ⟨trivial, hB', Set.equinumerous_emptyset_emptyset⟩
+    refine ⟨by simp, hB', Set.equinumerous_emptyset_emptyset⟩
   | succ m ih =>
 /-
 > #### (ii)

Common/List/Basic.lean

@@ -162,7 +162,7 @@ theorem length_zipWith_self_tail_eq_length_sub_one
   rw [length_zipWith]
   simp only [length_cons, ge_iff_le, min_eq_right_iff]
   show length as ≤ length as + 1
-  simp only [le_add_iff_nonneg_right]
+  simp only [le_add_iff_nonneg_right, zero_le]
 
 /--
 The output `List` of a `zipWith` is nonempty **iff** both of its inputs are

Common/Nat/Basic.lean

@@ -9,23 +9,4 @@ If `n < m⁺`, then `n < m` or `n = m`.
 theorem lt_or_eq_of_lt {n m : Nat} (h : n < m.succ) : n < m ∨ n = m :=
   lt_or_eq_of_le (lt_succ.mp h)
 
-/--
-The following cancellation law holds for `m`, `n`, and `p` in `ω`:
-```
-m ⬝ p = n ⬝ p ∧ p ≠ 0 → m = n
-```
--/
-theorem mul_right_cancel (m n p : ℕ) (hp : 0 < p) : m * p = n * p → m = n := by
-  intro hmn
-  match @trichotomous ℕ LT.lt _ m n with
-  | Or.inl h =>
-    have : m * p < n * p := Nat.mul_lt_mul_of_pos_right h hp
-    rw [hmn] at this
-    simp at this
-  | Or.inr (Or.inl h) => exact h
-  | Or.inr (Or.inr h) =>
-    have : n * p < m * p := Nat.mul_lt_mul_of_pos_right h hp
-    rw [hmn] at this
-    simp at this
-
 end Nat

Common/Real/Floor.lean

@@ -1,6 +1,5 @@
 import Mathlib.Algebra.BigOperators.Basic
-import Mathlib.Data.Real.Basic
+import Mathlib.Data.Real.Archimedean
-import Mathlib.Data.Finset.Basic
 
 /-! # Common.Real.Floor
 

lake-manifest.json

@@ -1,76 +1,86 @@
-{"version": 6,
+{"version": 7,
- "packagesDir": "lake-packages",
+ "packagesDir": ".lake/packages",
  "packages":
- [{"git":
+ [{"url": "https://github.com/mhuisi/lean4-cli",
-   {"url": "https://github.com/mhuisi/lean4-cli",
+   "type": "git",
-    "subDir?": null,
+   "subDir": null,
    "rev": "39229f3630d734af7d9cfb5937ddc6b41d3aa6aa",
-    "opts": {},
    "name": "Cli",
-    "inputRev?": "nightly",
+   "manifestFile": "lake-manifest.json",
-    "inherited": false}},
+   "inputRev": "nightly",
-  {"git":
+   "inherited": false,
+   "configFile": "lakefile.lean"},
   {"url": "https://github.com/xubaiw/CMark.lean",
-    "subDir?": null,
+   "type": "git",
+   "subDir": null,
    "rev": "0077cbbaa92abf855fc1c0413e158ffd8195ec77",
-    "opts": {},
    "name": "CMark",
-    "inputRev?": "main",
+   "manifestFile": "lake-manifest.json",
-    "inherited": false}},
+   "inputRev": "main",
-  {"git":
+   "inherited": false,
+   "configFile": "lakefile.lean"},
   {"url": "https://github.com/fgdorais/lean4-unicode-basic",
-    "subDir?": null,
+   "type": "git",
-    "rev": "280d75fdfe7be8eb337be7f1bf8479b4aac09f71",
+   "subDir": null,
-    "opts": {},
+   "rev": "dc62b29a26fcc3da545472ab8ad2c98ef3433634",
    "name": "UnicodeBasic",
-    "inputRev?": "main",
+   "manifestFile": "lake-manifest.json",
-    "inherited": false}},
+   "inputRev": "main",
-  {"git":
+   "inherited": false,
+   "configFile": "lakefile.lean"},
   {"url": "https://github.com/hargonix/LeanInk",
-    "subDir?": null,
+   "type": "git",
+   "subDir": null,
    "rev": "2447df5cc6e48eb965c3c3fba87e46d353b5e9f1",
-    "opts": {},
    "name": "leanInk",
-    "inputRev?": "doc-gen",
+   "manifestFile": "lake-manifest.json",
-    "inherited": false}},
+   "inputRev": "doc-gen",
-  {"git":
+   "inherited": false,
-   {"url": "https://github.com/leanprover-community/mathlib4.git",
+   "configFile": "lakefile.lean"},
-    "subDir?": null,
-    "rev": "c97b9b00802c2ed343d9ac73e59be287428dbcf0",
-    "opts": {},
-    "name": "mathlib",
-    "inputRev?": "master",
-    "inherited": false}},
-  {"git":
   {"url": "https://github.com/leanprover/std4.git",
-    "subDir?": null,
+   "type": "git",
-    "rev": "87b0742b01e45c6cc53cd3043fe3c7cdbf87a56f",
+   "subDir": null,
-    "opts": {},
+   "rev": "2e4a3586a8f16713f16b2d2b3af3d8e65f3af087",
    "name": "std",
-    "inputRev?": "main",
+   "manifestFile": "lake-manifest.json",
-    "inherited": false}},
+   "inputRev": "v4.3.0",
-  {"git":
+   "inherited": false,
+   "configFile": "lakefile.lean"},
   {"url": "https://github.com/leanprover-community/quote4",
-    "subDir?": null,
+   "type": "git",
-    "rev": "511eb96eca98a7474683b8ae55193a7e7c51bc39",
+   "subDir": null,
-    "opts": {},
+   "rev": "d3a1d25f3eba0d93a58d5d3d027ffa78ece07755",
    "name": "Qq",
-    "inputRev?": "master",
+   "manifestFile": "lake-manifest.json",
-    "inherited": true}},
+   "inputRev": "master",
-  {"git":
+   "inherited": true,
+   "configFile": "lakefile.lean"},
   {"url": "https://github.com/leanprover-community/aesop",
-    "subDir?": null,
+   "type": "git",
-    "rev": "cb87803274405db79ec578fc07c4730c093efb90",
+   "subDir": null,
-    "opts": {},
+   "rev": "c7cff4551258d31c0d2d453b3f9cbca757d445f1",
    "name": "aesop",
-    "inputRev?": "master",
+   "manifestFile": "lake-manifest.json",
-    "inherited": true}},
+   "inputRev": "master",
-  {"git":
+   "inherited": true,
+   "configFile": "lakefile.lean"},
   {"url": "https://github.com/leanprover-community/ProofWidgets4",
-    "subDir?": null,
+   "type": "git",
-    "rev": "f1a5c7808b001305ba07d8626f45ee054282f589",
+   "subDir": null,
-    "opts": {},
+   "rev": "909febc72b4f64628f8d35cd0554f8a90b6e0749",
    "name": "proofwidgets",
-    "inputRev?": "v0.0.21",
+   "manifestFile": "lake-manifest.json",
-    "inherited": true}}],
+   "inputRev": "v0.0.23",
- "name": "bookshelf"}
+   "inherited": true,
+   "configFile": "lakefile.lean"},
+  {"url": "https://github.com/leanprover-community/mathlib4.git",
+   "type": "git",
+   "subDir": null,
+   "rev": "f04afed5ac9fea0e1355bc6f6bee2bd01f4a888d",
+   "name": "mathlib",
+   "manifestFile": "lake-manifest.json",
+   "inputRev": "v4.3.0",
+   "inherited": false,
+   "configFile": "lakefile.lean"}],
+ "name": "bookshelf",
+ "lakeDir": ".lake"}

lakefile.lean

@@ -22,10 +22,10 @@ require leanInk from git
     "doc-gen"
 require mathlib from git
   "https://github.com/leanprover-community/mathlib4.git" @
-    "master"
+    "v4.3.0"
 require std from git
   "https://github.com/leanprover/std4.git" @
-    "main"
+    "v4.3.0"
 
 -- ========================================
 -- Documentation Generator

lean-toolchain

@@ -1 +1 @@
-leanprover/lean4:v4.3.0-rc1
+leanprover/lean4:v4.3.0