law mul_low

bend-osdev-word64@0.1.1.0 · LAWS_mul.bend:23

import Base
import bend-osdev-u32@0.1.0.0/u32.bend as U
import bend-osdev-word64@0.1.1.0/word64.bend as W

23law mul_low:
24  for +a: W.W64
25  for +b: W.W64
26  {W.W64.to_nat(W.W64.mul(a, b)) == U.U32Nat.low(64n, Nat.mul(W.W64.to_nat(a), W.W64.to_nat(b))) : Nat}