(ignored inputs)COMMENT submitted by: Akihisa Yamada
Rewrite Rules:
   [ f(g(?x)) -> g(f(f(?x))),
     g(?x) -> ?x ]
Apply Direct Methods...
Inner CPs:
   [ f(?x_1) = g(f(f(?x_1))) ]
Outer CPs:
   [  ]
not Overlay, check Termination...
Terminating, not WCR
Knuth & Bendix
Direct Methods: not CR

Combined result: not CR
1279.trs: Success(not CR)
NO
(7 msec.)