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feat: add LawfulBEq Int instance

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Leonardo de Moura 2022-04-20 14:52:41 -07:00
parent 73076b855c
commit bb3fc358c9
1 changed files with 4 additions and 0 deletions
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4
src/Init/Data/Int/Basic.lean
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@ -170,4 +170,8 @@ protected def pow (m : Int) : Nat → Int
instance : HPow Int Nat Int where
hPow := Int.pow
instance : LawfulBEq Int where
eq_of_beq a b h := by simp [BEq.beq] at h; assumption
rfl a := by simp [BEq.beq]
end Int