fix(tests/lean/*): fix tests
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11 changed files with 16 additions and 18 deletions
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@ -528,7 +528,7 @@ begin
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{rewrite add.comm4}
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end
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protected theorem mul_right_distrib (a b c : ℤ) : (a + b) * c = a * c + b * c :=
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protected theorem right_distrib (a b c : ℤ) : (a + b) * c = a * c + b * c :=
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eq_of_repr_equiv_repr
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(calc
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repr ((a + b) * c) = pmul (repr (a + b)) (repr c) : repr_mul
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@ -538,10 +538,10 @@ eq_of_repr_equiv_repr
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... = padd (repr (a * c)) (repr (b * c)) : repr_mul
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... ≡ repr (a * c + b * c) : repr_add)
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protected theorem mul_left_distrib (a b c : ℤ) : a * (b + c) = a * b + a * c :=
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protected theorem left_distrib (a b c : ℤ) : a * (b + c) = a * b + a * c :=
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calc
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a * (b + c) = (b + c) * a : int.mul_comm
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... = b * a + c * a : int.mul_right_distrib
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... = b * a + c * a : int.right_distrib
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... = a * b + c * a : int.mul_comm
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... = a * b + a * c : int.mul_comm
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@ -567,8 +567,8 @@ protected definition integral_domain [reducible] [trans_instance] : algebra.inte
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one := 1,
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one_mul := int.one_mul,
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mul_one := int.mul_one,
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left_distrib := int.mul_left_distrib,
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right_distrib := int.mul_right_distrib,
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left_distrib := int.left_distrib,
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right_distrib := int.right_distrib,
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mul_comm := int.mul_comm,
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zero_ne_one := int.zero_ne_one,
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eq_zero_or_eq_zero_of_mul_eq_zero := @int.eq_zero_or_eq_zero_of_mul_eq_zero⦄
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@ -406,7 +406,7 @@ calc
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a * b div (a * c) = a * (b div c * c + b mod c) div (a * c) : eq_div_mul_add_mod
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... = (a * (b mod c) + a * c * (b div c)) div (a * c) :
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by rewrite [!add.comm, int.mul_left_distrib, mul.comm _ c, -!mul.assoc]
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by rewrite [!add.comm, int.left_distrib, mul.comm _ c, -!mul.assoc]
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... = a * (b mod c) div (a * c) + b div c : !int.add_mul_div_self_left H3
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... = 0 + b div c : {!div_eq_zero_of_lt H5 H4}
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... = b div c : zero_add
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@ -9,7 +9,6 @@ false.rec_on|Π (C : Type), false → C
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false.cases_on|Π (C : Type), false → C
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false.induction_on|∀ (C : Prop), false → C
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true_ne_false|¬true = false
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nat.lt_self_iff_false|∀ (n : ℕ), n < n ↔ false
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not_of_is_false|is_false ?c → ¬?c
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not_of_iff_false|(?a ↔ false) → ¬?a
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is_false|Π (c : Prop) [H : decidable c], Prop
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@ -78,8 +78,8 @@ nat.case_strong_induction_on m
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take z,
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assume Hzx : measure z < measure x,
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calc
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f' m z = restrict default measure f m z : IH m !le.refl z
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... = f z : !restrict_lt_eq (lt_of_lt_of_le Hzx (le_of_lt_succ H1))
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f' m z = restrict default measure f m z : IH m !nat.le_refl z
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... = f z : !restrict_lt_eq (nat.lt_of_lt_of_le Hzx (le_of_lt_succ H1))
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∎,
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have H2 : f' (succ m) x = rec_val x f,
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proof
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@ -4,7 +4,7 @@ open nat well_founded decidable prod eq.ops
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-- Auxiliary lemma used to justify recursive call
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private definition lt_aux {x y : nat} (H : 0 < y ∧ y ≤ x) : x - y < x :=
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and.rec_on H (λ ypos ylex,
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sub_lt (lt_of_lt_of_le ypos ylex) ypos)
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sub_lt (nat.lt_of_lt_of_le ypos ylex) ypos)
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definition wdiv.F (x : nat) (f : Π x₁, x₁ < x → nat → nat) (y : nat) : nat :=
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if H : 0 < y ∧ y ≤ x then f (x - y) (lt_aux H) y + 1 else zero
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@ -1,5 +1,5 @@
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open nat
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definition lt_of_succ : ∀ {a b : nat}, succ a < b → a < b
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| lt_of_succ (lt.base (succ a)) := lt.trans (lt.base a) (lt.base (succ a))
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| lt_of_succ (lt.base (succ a)) := nat.lt_trans (lt.base a) (lt.base (succ a))
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| lt_of_succ (lt.step h) := lt.step (lt_of_succ h)
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@ -8,7 +8,7 @@ nat.cases_on n
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(λ (f : Π (m : nat), m < (succ zero) → nat), succ zero)
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(λ (n₂ : nat) (f : Π (m : nat), m < (succ (succ n₂)) → nat),
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have l₁ : succ n₂ < succ (succ n₂), from lt.base (succ n₂),
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have l₂ : n₂ < succ (succ n₂), from lt.trans (lt.base n₂) l₁,
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have l₂ : n₂ < succ (succ n₂), from nat.lt_trans (lt.base n₂) l₁,
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f (succ n₂) l₁ + f n₂ l₂))
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definition fib (n : nat) :=
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@ -5,13 +5,13 @@ open nat prod sigma
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-- g (succ x) := g (g x)
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definition g.F (x : nat) : (Π y, y < x → Σ r : nat, r ≤ y) → Σ r : nat, r ≤ x :=
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nat.cases_on x
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(λ f, ⟨zero, le.refl zero⟩)
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(λ f, ⟨zero, nat.le_refl zero⟩)
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(λ x₁ (f : Π y, y < succ x₁ → Σ r : nat, r ≤ y),
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let p₁ := f x₁ (lt.base x₁) in
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let gx₁ := pr₁ p₁ in
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let p₂ := f gx₁ (lt_of_le_of_lt (pr₂ p₁) (lt.base x₁)) in
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let p₂ := f gx₁ (nat.lt_of_le_of_lt (pr₂ p₁) (lt.base x₁)) in
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let ggx₁ := pr₁ p₂ in
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⟨ggx₁, le_succ_of_le (le.trans (pr₂ p₂) (pr₂ p₁))⟩)
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⟨ggx₁, le_succ_of_le (nat.le_trans (pr₂ p₂) (pr₂ p₁))⟩)
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definition g (x : nat) : nat :=
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pr₁ (well_founded.fix g.F x)
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@ -10,4 +10,4 @@ by rewrite ^sub -- unfold sub
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definition double (x : int) := x + x
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theorem double_zero (x : int) : double (0 + x) = (1 + 1)*x :=
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by rewrite [↑double, zero_add, mul.right_distrib, one_mul]
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by rewrite [↑double, int.zero_add, int.right_distrib, int.one_mul]
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@ -25,7 +25,7 @@ theorem height_lt.node_right {A : Type} (t₁ t₂ : tree A) : height_lt t₂ (n
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lt_succ_of_le (le_max_right (height t₁) (height t₂))
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theorem height_lt.trans {A : Type} : transitive (@height_lt A) :=
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inv_image.trans lt height @lt.trans
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inv_image.trans lt height @nat.lt_trans
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example : height_lt (leaf (2:nat)) (node (leaf 1) (leaf 2)) :=
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!height_lt.node_right
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@ -7,7 +7,6 @@ simplification rules for iff
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#2, ?M_1 - ?M_2 < succ ?M_1 ↦ true
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#1, ?M_1 < 0 ↦ false
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#1, ?M_1 < succ ?M_1 ↦ true
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#1, ?M_1 < ?M_1 ↦ false
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#1, 0 < succ ?M_1 ↦ true
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simplification rules for eq
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#1, g ?M_1 ↦ f ?M_1 + 1
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