9 lines
164 B
Text
9 lines
164 B
Text
import data.int
|
||
open int
|
||
|
||
protected theorem has_decidable_eq₁ [instance] : decidable_eq ℤ :=
|
||
take (a b : ℤ), _
|
||
|
||
constant n : nat
|
||
constant i : int
|
||
check n + i
|