def Word.inc
import Base1338def Word.inc(n: Nat, w: Word(n)) -> Word(n):
1339 match n:
1340 case 0n:
1341 WNil{}
1342 case 1n+p:
1343 match w:
1344 case WCon{False{}, t}:
1345 WCon{True{}, t}
1346 case WCon{True{}, t}:
1347 WCon{False{}, Word.inc(p, t)}