MAYBE
(ignored inputs)COMMENT generated by FORT -f "a:0 b:0 f:2" -r 4 "UN & ~UNC & ~SN" submitted by: Franziska Rapp
Rewrite Rules:
   [ a -> a,
     a -> b,
     f(b,b) -> f(a,b),
     f(?x,a) -> f(a,b) ]
Apply Direct Methods...
Inner CPs:
   [ f(?x,a) = f(a,b),
     f(?x,b) = f(a,b) ]
Outer CPs:
   [ a = b ]
Linear
(inner) Parallel CPs: (not computed)
unknown Toyama (Parallel CPs)
Direct Methods: Can't judge

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