NO 0.08/0.18 NO 0.08/0.19 0.08/0.19 Problem: 0.08/0.19 2nd(cons(X)) -> head(XS) 0.08/0.19 sel(s(N),cons(X)) -> sel(N,XS) 0.08/0.19 from(X) -> cons(X) 0.08/0.19 head(cons(X)) -> X 0.08/0.19 take(0(),XS) -> nil() 0.08/0.19 take(s(N),cons(X)) -> cons(X) 0.08/0.19 sel(0(),cons(X)) -> X 0.08/0.19 0.08/0.19 Proof: 0.08/0.19 Fresh Variable Processor: 0.08/0.19 loop length: 1 0.08/0.19 terms: 0.08/0.19 2nd(cons(X)) 0.08/0.19 context: head([]) 0.08/0.19 substitution: 0.08/0.19 XS -> 2nd(cons(X)) 0.08/0.19 Qed 0.08/0.19 EOF