YES Problem: plus(0(),Y) -> Y plus(s(X),Y) -> s(plus(X,Y)) min(X,0()) -> X min(s(X),s(Y)) -> min(X,Y) min(min(X,Y),Z()) -> min(X,plus(Y,Z())) quot(0(),s(Y)) -> 0() quot(s(X),s(Y)) -> s(quot(min(X,Y),s(Y))) Proof: DP Processor: DPs: plus#(s(X),Y) -> plus#(X,Y) min#(s(X),s(Y)) -> min#(X,Y) min#(min(X,Y),Z()) -> plus#(Y,Z()) min#(min(X,Y),Z()) -> min#(X,plus(Y,Z())) quot#(s(X),s(Y)) -> min#(X,Y) quot#(s(X),s(Y)) -> quot#(min(X,Y),s(Y)) TRS: plus(0(),Y) -> Y plus(s(X),Y) -> s(plus(X,Y)) min(X,0()) -> X min(s(X),s(Y)) -> min(X,Y) min(min(X,Y),Z()) -> min(X,plus(Y,Z())) quot(0(),s(Y)) -> 0() quot(s(X),s(Y)) -> s(quot(min(X,Y),s(Y))) EDG Processor: DPs: plus#(s(X),Y) -> plus#(X,Y) min#(s(X),s(Y)) -> min#(X,Y) min#(min(X,Y),Z()) -> plus#(Y,Z()) min#(min(X,Y),Z()) -> min#(X,plus(Y,Z())) quot#(s(X),s(Y)) -> min#(X,Y) quot#(s(X),s(Y)) -> quot#(min(X,Y),s(Y)) TRS: plus(0(),Y) -> Y plus(s(X),Y) -> s(plus(X,Y)) min(X,0()) -> X min(s(X),s(Y)) -> min(X,Y) min(min(X,Y),Z()) -> min(X,plus(Y,Z())) quot(0(),s(Y)) -> 0() quot(s(X),s(Y)) -> s(quot(min(X,Y),s(Y))) graph: quot#(s(X),s(Y)) -> quot#(min(X,Y),s(Y)) -> 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)) -> min#(X,Y) -> min#(s(X),s(Y)) -> min#(X,Y) quot#(s(X),s(Y)) -> min#(X,Y) -> min#(min(X,Y),Z()) -> plus#(Y,Z()) quot#(s(X),s(Y)) -> min#(X,Y) -> min#(min(X,Y),Z()) -> min#(X,plus(Y,Z())) min#(min(X,Y),Z()) -> min#(X,plus(Y,Z())) -> min#(s(X),s(Y)) -> min#(X,Y) min#(min(X,Y),Z()) -> min#(X,plus(Y,Z())) -> min#(min(X,Y),Z()) -> plus#(Y,Z()) min#(min(X,Y),Z()) -> min#(X,plus(Y,Z())) -> min#(min(X,Y),Z()) -> min#(X,plus(Y,Z())) min#(min(X,Y),Z()) -> plus#(Y,Z()) -> plus#(s(X),Y) -> plus#(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) -> min#(min(X,Y),Z()) -> plus#(Y,Z()) min#(s(X),s(Y)) -> min#(X,Y) -> min#(min(X,Y),Z()) -> min#(X,plus(Y,Z())) plus#(s(X),Y) -> plus#(X,Y) -> plus#(s(X),Y) -> plus#(X,Y) SCC Processor: #sccs: 3 #rules: 4 #arcs: 13/36 DPs: quot#(s(X),s(Y)) -> quot#(min(X,Y),s(Y)) TRS: plus(0(),Y) -> Y plus(s(X),Y) -> s(plus(X,Y)) min(X,0()) -> X min(s(X),s(Y)) -> min(X,Y) min(min(X,Y),Z()) -> min(X,plus(Y,Z())) quot(0(),s(Y)) -> 0() quot(s(X),s(Y)) -> s(quot(min(X,Y),s(Y))) Matrix Interpretation Processor: dimension: 1 interpretation: [quot#](x0, x1) = x0, [quot](x0, x1) = x0, [Z] = 1, [min](x0, x1) = x0, [s](x0) = x0 + 1, [plus](x0, x1) = x0 + x1 + 1, [0] = 1 orientation: quot#(s(X),s(Y)) = X + 1 >= X = quot#(min(X,Y),s(Y)) plus(0(),Y) = Y + 2 >= Y = Y plus(s(X),Y) = X + Y + 2 >= X + Y + 2 = s(plus(X,Y)) min(X,0()) = X >= X = X min(s(X),s(Y)) = X + 1 >= X = min(X,Y) min(min(X,Y),Z()) = X >= X = min(X,plus(Y,Z())) quot(0(),s(Y)) = 1 >= 1 = 0() quot(s(X),s(Y)) = X + 1 >= X + 1 = s(quot(min(X,Y),s(Y))) problem: DPs: TRS: plus(0(),Y) -> Y plus(s(X),Y) -> s(plus(X,Y)) min(X,0()) -> X min(s(X),s(Y)) -> min(X,Y) min(min(X,Y),Z()) -> min(X,plus(Y,Z())) quot(0(),s(Y)) -> 0() quot(s(X),s(Y)) -> s(quot(min(X,Y),s(Y))) Qed DPs: min#(min(X,Y),Z()) -> min#(X,plus(Y,Z())) min#(s(X),s(Y)) -> min#(X,Y) TRS: plus(0(),Y) -> Y plus(s(X),Y) -> s(plus(X,Y)) min(X,0()) -> X min(s(X),s(Y)) -> min(X,Y) min(min(X,Y),Z()) -> min(X,plus(Y,Z())) quot(0(),s(Y)) -> 0() quot(s(X),s(Y)) -> s(quot(min(X,Y),s(Y))) Subterm Criterion Processor: simple projection: pi(min#) = 0 problem: DPs: TRS: plus(0(),Y) -> Y plus(s(X),Y) -> s(plus(X,Y)) min(X,0()) -> X min(s(X),s(Y)) -> min(X,Y) min(min(X,Y),Z()) -> min(X,plus(Y,Z())) quot(0(),s(Y)) -> 0() quot(s(X),s(Y)) -> s(quot(min(X,Y),s(Y))) Qed DPs: plus#(s(X),Y) -> plus#(X,Y) TRS: plus(0(),Y) -> Y plus(s(X),Y) -> s(plus(X,Y)) min(X,0()) -> X min(s(X),s(Y)) -> min(X,Y) min(min(X,Y),Z()) -> min(X,plus(Y,Z())) quot(0(),s(Y)) -> 0() quot(s(X),s(Y)) -> s(quot(min(X,Y),s(Y))) Subterm Criterion Processor: simple projection: pi(plus#) = 0 problem: DPs: TRS: plus(0(),Y) -> Y plus(s(X),Y) -> s(plus(X,Y)) min(X,0()) -> X min(s(X),s(Y)) -> min(X,Y) min(min(X,Y),Z()) -> min(X,plus(Y,Z())) quot(0(),s(Y)) -> 0() quot(s(X),s(Y)) -> s(quot(min(X,Y),s(Y))) Qed