YES Problem: 0(0(*(*(x1)))) -> *(*(1(1(x1)))) 1(1(*(*(x1)))) -> 0(0(#(#(x1)))) #(#(0(0(x1)))) -> 0(0(#(#(x1)))) #(#(1(1(x1)))) -> 1(1(#(#(x1)))) #(#($($(x1)))) -> *(*($($(x1)))) #(#(#(#(x1)))) -> #(#(x1)) #(#(*(*(x1)))) -> *(*(x1)) Proof: Arctic Interpretation Processor: dimension: 1 interpretation: [$](x0) = 8x0, [#](x0) = 1x0, [1](x0) = x0, [0](x0) = x0, [*](x0) = 1x0 orientation: 0(0(*(*(x1)))) = 2x1 >= 2x1 = *(*(1(1(x1)))) 1(1(*(*(x1)))) = 2x1 >= 2x1 = 0(0(#(#(x1)))) #(#(0(0(x1)))) = 2x1 >= 2x1 = 0(0(#(#(x1)))) #(#(1(1(x1)))) = 2x1 >= 2x1 = 1(1(#(#(x1)))) #(#($($(x1)))) = 18x1 >= 18x1 = *(*($($(x1)))) #(#(#(#(x1)))) = 4x1 >= 2x1 = #(#(x1)) #(#(*(*(x1)))) = 4x1 >= 2x1 = *(*(x1)) problem: 0(0(*(*(x1)))) -> *(*(1(1(x1)))) 1(1(*(*(x1)))) -> 0(0(#(#(x1)))) #(#(0(0(x1)))) -> 0(0(#(#(x1)))) #(#(1(1(x1)))) -> 1(1(#(#(x1)))) #(#($($(x1)))) -> *(*($($(x1)))) KBO Processor: weight function: w0 = 1 w($) = w(#) = w(1) = w(0) = w(*) = 1 precedence: # > 1 > 0 > $ ~ * problem: Qed