Input TRS:
    1: f(f(x)) -> f(x)
    2: g(0()) -> g(f(0()))
Number of strict rules: 2
Direct Order(PosReal,>,Poly) ... failed.
Freezing ... failed.
Dependency Pairs:
   #1: #g(0()) -> #g(f(0()))
   #2: #g(0()) -> #f(0())
Number of SCCs: 0, DPs: 0, edges: 0
YES