def un.topc
import bend-osdev-u32@0.1.0.0/PROOF.bend as PROOFimport Base
1323def un.topc(n: Nat, c: Bool, w: Word(n)) -> Bool:
1324 match n:
1325 case 0n:
1326 c
1327 case 1n+ +p:
1328 match w:
1329 case WCon{b, t}:
1330 un.topc(p, b, t)