MAYBE
(ignored inputs)COMMENT [111] p. 29 ( GWCR & ~WCR & ~GCR )
Rewrite Rules:
   [ a -> b,
     a -> f(a,a),
     f(?x,a) -> a ]
Apply Direct Methods...
Inner CPs:
   [ f(?x,b) = a,
     f(?x,f(a,a)) = a ]
Outer CPs:
   [ b = f(a,a) ]
Linear
(inner) Parallel CPs: (not computed)
unknown Toyama (Parallel CPs)
Direct Methods: Can't judge

Combined result: Can't judge
507.trs: Failure(unknown CR)
(0 msec.)