MAYBE Problem: a(a(a(b(b(x1))))) -> b(b(a(b(b(a(a(a(x1)))))))) b(b(a(x1))) -> x1 a(x1) -> b(b(b(x1))) a(x1) -> b(x1) Proof: DP Processor: DPs: a#(a(a(b(b(x1))))) -> a#(x1) a#(a(a(b(b(x1))))) -> a#(a(x1)) a#(a(a(b(b(x1))))) -> a#(a(a(x1))) a#(a(a(b(b(x1))))) -> b#(a(a(a(x1)))) a#(a(a(b(b(x1))))) -> b#(b(a(a(a(x1))))) a#(a(a(b(b(x1))))) -> a#(b(b(a(a(a(x1)))))) a#(a(a(b(b(x1))))) -> b#(a(b(b(a(a(a(x1))))))) a#(a(a(b(b(x1))))) -> b#(b(a(b(b(a(a(a(x1)))))))) a#(x1) -> b#(x1) a#(x1) -> b#(b(x1)) a#(x1) -> b#(b(b(x1))) TRS: a(a(a(b(b(x1))))) -> b(b(a(b(b(a(a(a(x1)))))))) b(b(a(x1))) -> x1 a(x1) -> b(b(b(x1))) a(x1) -> b(x1) Open