MAYBE

Problem:
 g(tt(),x,y) -> g(f(x,y),s(x),s(y))
 f(s(x),y) -> f(x,y)
 f(x,s(y)) -> f(x,y)
 f(0(),0()) -> tt()

Proof:
 DP Processor:
  DPs:
   g#(tt(),x,y) -> f#(x,y)
   g#(tt(),x,y) -> g#(f(x,y),s(x),s(y))
   f#(s(x),y) -> f#(x,y)
   f#(x,s(y)) -> f#(x,y)
  TRS:
   g(tt(),x,y) -> g(f(x,y),s(x),s(y))
   f(s(x),y) -> f(x,y)
   f(x,s(y)) -> f(x,y)
   f(0(),0()) -> tt()
  Open