law from_nat_add.m
import lawful-words@0.1.0.0/proof_u32.bend as ProofU32import Base
437law from_nat_add.m:
438 for +x: Nat
439 for +y: Nat
440 for +m: Nat
441 for +hm: {Nat.pow(2n, 32n) == m : Nat}
442 {U32.from_nat(Nat.add(x, y)) == U32.add(U32.from_nat(x), U32.from_nat(y)) : U32}