def sign_threshold

import bend-collections-laws-math@1.0.0.0/proofs/lib/lemmas/spec/numeric.bend as Numeric

import Base
import bend-collections-laws-math@1.0.0.0/spec/lib/numeric.bend as W

15def sign_threshold(n: Nat) -> Word(1n+n):
16  W.sign_threshold(n)

Uses (3)