law zb_none

lawful-bytes@0.1.1.0 · proof_fast_word.bend:60

import Base
import lawful-bytes@0.1.1.0/fast.bend as FA

60# The zero-byte flags are all clear exactly when no byte is zero.
61law zb_none:
62  for +v: U32
63  {U32.is_zero(FA.zb(v)) == Nat.is_eq(P0(v), 4n) : Bool}