law wadd_mod
import lawful-words@0.1.0.0/proof_word.bend as ProofWordimport Base
682law wadd_mod:
683 for +n: Nat
684 for +a: Word(n)
685 for +b: Word(n)
686 {Word.to_nat(n, Word.add(n, a, b)) == Nat.mod(Nat.add(Word.to_nat(n, a), Word.to_nat(n, b)), Nat.pow(2n, n)) : Nat}