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