MAYBE Problem: +(1(),x) -> +(+(0(),1()),x) +(0(),x) -> x Proof: RT Transformation Processor: strict: +(1(),x) -> +(+(0(),1()),x) +(0(),x) -> x weak: Matrix Interpretation Processor: dimension: 1 interpretation: [0] = 15, [+](x0, x1) = x0 + x1 + 14, [1] = 20 orientation: +(1(),x) = x + 34 >= x + 63 = +(+(0(),1()),x) +(0(),x) = x + 29 >= x = x problem: strict: +(1(),x) -> +(+(0(),1()),x) weak: +(0(),x) -> x Open