Input TRS: 1: average(s(x),y) -> average(x,s(y)) 2: average(x,s(s(s(y)))) -> s(average(s(x),y)) 3: average(|0|(),|0|()) -> |0|() 4: average(|0|(),s(|0|())) -> |0|() 5: average(|0|(),s(s(|0|()))) -> s(|0|()) Number of strict rules: 5 Direct Order(PosReal,>,Poly) ... removes: 4 3 5 2 |0|() weight: 0 s(x1) weight: (/ 17711 2) + x1 average(x1,x2) weight: (/ 1 2) + x1 + x2 Number of strict rules: 1 Direct Order(PosReal,>,Poly) ... removes: 1 |0|() weight: 0 s(x1) weight: (/ 1 16) + x1 average(x1,x2) weight: (/ 1 16) + 2 * x1 + x2 Number of strict rules: 0 YES