MAYBE

Problem:
 f(g(x),h(x),y,x) -> f(y,y,y,x)
 f(x,y,z,0()) -> 2()
 g(0()) -> 2()
 h(0()) -> 2()

Proof:
 DP Processor:
  DPs:
   f#(g(x),h(x),y,x) -> f#(y,y,y,x)
  TRS:
   f(g(x),h(x),y,x) -> f(y,y,y,x)
   f(x,y,z,0()) -> 2()
   g(0()) -> 2()
   h(0()) -> 2()
  Open