(ignored inputs)COMMENT doi:10.1109/LICS.2002.1029852 [25] Example 3 submitted by: Takahito Aoto , Junichi Yoshida , and Yoshihito Toyama Rewrite Rules: [ f(a) -> f(f(a)), f(?x) -> f(a) ] Apply Direct Methods... Inner CPs: [ ] Outer CPs: [ f(f(a)) = f(a) ] Overlay, check Innermost Termination... unknown Innermost Terminating unknown Knuth & Bendix Linear Development Closed Direct Methods: CR Combined result: CR 82.trs: Success(CR) YES (0 msec.)