NO (ignored inputs)COMMENT reduction failed Rewrite Rules: [ f(g(f(?x))) -> g(f(g(?x))), f(c) -> c, g(c) -> c ] Apply Direct Methods... Inner CPs: [ f(g(c)) = g(f(g(c))), f(g(g(f(g(?x))))) = g(f(g(g(f(?x))))) ] Outer CPs: [ ] not Overlay, check Termination... Terminating, not WCR Knuth & Bendix Direct Methods: not CR Combined result: not CR /tmp/fileClefYg.trs: Success(not CR) (7 msec.)