YES Problem: min(X,0()) -> X min(s(X),s(Y)) -> min(X,Y) quot(0(),s(Y)) -> 0() quot(s(X),s(Y)) -> s(quot(min(X,Y),s(Y))) log(s(0())) -> 0() log(s(s(X))) -> s(log(s(quot(X,s(s(0())))))) Proof: DP Processor: DPs: min#(s(X),s(Y)) -> min#(X,Y) quot#(s(X),s(Y)) -> min#(X,Y) quot#(s(X),s(Y)) -> quot#(min(X,Y),s(Y)) log#(s(s(X))) -> quot#(X,s(s(0()))) log#(s(s(X))) -> log#(s(quot(X,s(s(0()))))) TRS: min(X,0()) -> X min(s(X),s(Y)) -> min(X,Y) quot(0(),s(Y)) -> 0() quot(s(X),s(Y)) -> s(quot(min(X,Y),s(Y))) log(s(0())) -> 0() log(s(s(X))) -> s(log(s(quot(X,s(s(0())))))) Usable Rule Processor: DPs: min#(s(X),s(Y)) -> min#(X,Y) quot#(s(X),s(Y)) -> min#(X,Y) quot#(s(X),s(Y)) -> quot#(min(X,Y),s(Y)) log#(s(s(X))) -> quot#(X,s(s(0()))) log#(s(s(X))) -> log#(s(quot(X,s(s(0()))))) TRS: min(X,0()) -> X min(s(X),s(Y)) -> min(X,Y) quot(0(),s(Y)) -> 0() quot(s(X),s(Y)) -> s(quot(min(X,Y),s(Y))) KBO Processor: argument filtering: pi(0) = [] pi(min) = 0 pi(s) = [0] pi(quot) = 0 pi(min#) = 0 pi(quot#) = 0 pi(log#) = 0 usable rules: min(X,0()) -> X min(s(X),s(Y)) -> min(X,Y) quot(0(),s(Y)) -> 0() quot(s(X),s(Y)) -> s(quot(min(X,Y),s(Y))) weight function: w0 = 1 w(log#) = w(min) = w(0) = 1 w(quot#) = w(min#) = w(quot) = w(s) = 0 precedence: log# ~ quot# ~ min# ~ quot ~ s ~ min ~ 0 problem: DPs: TRS: min(X,0()) -> X min(s(X),s(Y)) -> min(X,Y) quot(0(),s(Y)) -> 0() quot(s(X),s(Y)) -> s(quot(min(X,Y),s(Y))) Qed