law mod_two_eq_zero_or_one
import bend-mathlib@0.8.1.0/nat.bend as Natimport Base
3514# A remainder modulo two is zero or one.
3515law mod_two_eq_zero_or_one:
3516 for n: Nat
3517 {Bool.or(Nat.is_eq(Nat.mod(n, 2n), 0n), Nat.is_eq(Nat.mod(n, 2n), 1n)) == True{} : Bool}