law word_mask_value

bend-osdev-u32@0.1.0.0 · LAWS.bend:565

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

565law word_mask_value:
566  for +n: Nat
567  for +k: Nat
568  for h: {Nat.is_le(k, n) == True{} : Bool}
569  {1n+Word.to_nat(n, U.U32Word.mask(n, k)) == U.U32Nat.dbl(k, 1n) : Nat}