NO
(ignored inputs)COMMENT Example 1 of 10.1007/11538363_37
Rewrite Rules:
   [ f(a) -> b,
     a -> a',
     f(b) -> c ]
Apply Direct Methods...
Inner CPs:
   [ f(a') = b ]
Outer CPs:
   [  ]
not Overlay, check Termination...
Terminating, not WCR
Knuth & Bendix
Direct Methods: not CR

Final result: not CR
225.trs: Success(not CR)
(0 msec.)