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())))))) TDG 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())))))) graph: log#(s(s(X))) -> log#(s(quot(X,s(s(0()))))) -> log#(s(s(X))) -> log#(s(quot(X,s(s(0()))))) log#(s(s(X))) -> log#(s(quot(X,s(s(0()))))) -> log#(s(s(X))) -> quot#(X,s(s(0()))) log#(s(s(X))) -> quot#(X,s(s(0()))) -> quot#(s(X),s(Y)) -> quot#(min(X,Y),s(Y)) log#(s(s(X))) -> quot#(X,s(s(0()))) -> quot#(s(X),s(Y)) -> min#(X,Y) quot#(s(X),s(Y)) -> quot#(min(X,Y),s(Y)) -> quot#(s(X),s(Y)) -> quot#(min(X,Y),s(Y)) quot#(s(X),s(Y)) -> quot#(min(X,Y),s(Y)) -> quot#(s(X),s(Y)) -> min#(X,Y) quot#(s(X),s(Y)) -> min#(X,Y) -> min#(s(X),s(Y)) -> min#(X,Y) min#(s(X),s(Y)) -> min#(X,Y) -> min#(s(X),s(Y)) -> min#(X,Y) SCC Processor: #sccs: 3 #rules: 3 #arcs: 8/25 DPs: 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())))))) Arctic Interpretation Processor: dimension: 1 interpretation: [log#](x0) = x0, [log](x0) = 2x0, [quot](x0, x1) = x0, [s](x0) = 2x0, [min](x0, x1) = x0, [0] = 0 orientation: log#(s(s(X))) = 4X >= 2X = log#(s(quot(X,s(s(0()))))) min(X,0()) = X >= X = X min(s(X),s(Y)) = 2X >= X = min(X,Y) quot(0(),s(Y)) = 0 >= 0 = 0() quot(s(X),s(Y)) = 2X >= 2X = s(quot(min(X,Y),s(Y))) log(s(0())) = 4 >= 0 = 0() log(s(s(X))) = 6X >= 6X = s(log(s(quot(X,s(s(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))) log(s(0())) -> 0() log(s(s(X))) -> s(log(s(quot(X,s(s(0())))))) Qed DPs: quot#(s(X),s(Y)) -> quot#(min(X,Y),s(Y)) 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())))))) Arctic Interpretation Processor: dimension: 1 interpretation: [quot#](x0, x1) = x0, [log](x0) = 2x0 + 0, [quot](x0, x1) = x0, [s](x0) = 2x0 + 0, [min](x0, x1) = x0, [0] = 1 orientation: quot#(s(X),s(Y)) = 2X + 0 >= X = quot#(min(X,Y),s(Y)) min(X,0()) = X >= X = X min(s(X),s(Y)) = 2X + 0 >= X = min(X,Y) quot(0(),s(Y)) = 1 >= 1 = 0() quot(s(X),s(Y)) = 2X + 0 >= 2X + 0 = s(quot(min(X,Y),s(Y))) log(s(0())) = 5 >= 1 = 0() log(s(s(X))) = 6X + 4 >= 6X + 4 = s(log(s(quot(X,s(s(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))) log(s(0())) -> 0() log(s(s(X))) -> s(log(s(quot(X,s(s(0())))))) Qed DPs: min#(s(X),s(Y)) -> min#(X,Y) 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())))))) Subterm Criterion Processor: simple projection: pi(min#) = 1 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))) log(s(0())) -> 0() log(s(s(X))) -> s(log(s(quot(X,s(s(0())))))) Qed