MAYBE Problem: a(lambda(x),y) -> lambda(a(x,p(1(),a(y,t())))) a(p(x,y),z) -> p(a(x,z),a(y,z)) a(a(x,y),z) -> a(x,a(y,z)) a(id(),x) -> x a(1(),id()) -> 1() a(t(),id()) -> t() a(1(),p(x,y)) -> x a(t(),p(x,y)) -> y Proof: DP Processor: DPs: a#(lambda(x),y) -> a#(y,t()) a#(lambda(x),y) -> a#(x,p(1(),a(y,t()))) a#(p(x,y),z) -> a#(y,z) a#(p(x,y),z) -> a#(x,z) a#(a(x,y),z) -> a#(y,z) a#(a(x,y),z) -> a#(x,a(y,z)) TRS: a(lambda(x),y) -> lambda(a(x,p(1(),a(y,t())))) a(p(x,y),z) -> p(a(x,z),a(y,z)) a(a(x,y),z) -> a(x,a(y,z)) a(id(),x) -> x a(1(),id()) -> 1() a(t(),id()) -> t() a(1(),p(x,y)) -> x a(t(),p(x,y)) -> y Open