law bitw
import lawful-words@0.1.0.0/proof_u32.bend as ProofU32import Base
import lawful-words@0.1.0.0/proof_word.bend as W
import lawful-words@0.1.0.0/defs.bend as D
1255law bitw:
1256 for +w: Word(32n)
1257 for +k: Nat
1258 {D.bit(U32{w}, k) == W.wbit(32n, w, k) : Bool}