def un.vc
import bend-osdev-u32@0.1.0.0/PROOF.bend as PROOFimport Base
338def un.vc(-p: Nat, b: Bool, -t: Word(p)) -> {un.bv(b, Word.to_nat(p, t)) == Word.to_nat(1n+p, WCon{b, t}) : Nat}:
339 match b:
340 case False{}:
341 {==}
342 case True{}:
343 {==}