@@ -49,7 +49,7 @@ power base (S exp) = mult base $ power base exp
49--------------------------------------------------------------------------------
49--------------------------------------------------------------------------------
51instance Eq Nat where
51instance Eq Nat where
52− Z == Z = True
52+ O == O = True
53 (S l) == (S r) = l == r
53 (S l) == (S r) = l == r
54 _ == _ = False
54 _ == _ = False