lean4-htt/old_tests/tests/lean/bad_inaccessible.lean
2018-04-10 12:56:55 -07:00

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-- These definitions can be processed by the new equation compiler without producing errors.
universe variables u
definition f1 : nat → nat → nat
| a .(a) := a
definition f2 : ∀ (a b c : nat), a = c → c = a
| a b .(b) rfl := rfl
inductive vec (A : Type u) : nat → Type (max 1 u)
| nil {} : vec 0
| cons : Π {n}, A → vec n → vec (n+1)
definition foo (A : Type u) (f : A → A → A) : Π {n}, vec A n → vec A n → vec A n
| ._ vec.nil vec.nil := vec.nil
| ._ (vec.cons a₁ l₁) (vec.cons a₂ l₂) := vec.cons (f a₁ a₂) (foo l₁ l₂)