law to_nat_byte
import lawful-words@0.1.0.0/proof_bytes.bend as ProofBytesimport Base
import lawful-words@0.1.0.0/defs.bend as D
545law to_nat_byte:
546 for +w: U32
547 for +j: Nat
548 {U32.to_nat(D.byte(w, j)) == Nat.mod(Nat.div(U32.to_nat(w), Nat.pow(2n, Nat.mul(8n, j))), Nat.pow(2n, 8n)) : Nat}