YES TRS: b(x,y) -> c(a(c(y),a(0(),x))) a(y,x) -> y a(y,c(b(a(0(),x),0()))) -> b(a(c(b(0(),y)),x),0()) max/plus interpretations on N: b_A(x1,x2) = max{93, 27 + x1, -16 + x2} b#_A(x1,x2) = max{91, 18 + x1, 1 + x2} c_A(x1) = max{28, -11 + x1} c#_A(x1) = max{17, 2} a_A(x1,x2) = max{88, 6 + x1, 15 + x2} a#_A(x1,x2) = max{3, 4 + x1, 2 + x2} 0_A = 63 0#_A = 0 precedence: a > b > c > 0