MAYBE
(ignored inputs)COMMENT [11] Example 2.2.28 submitted by: Takahito Aoto , Junichi Yoshida , and Yoshihito Toyama
Rewrite Rules:
   [ f(a,?x) -> f(a,g(?x)),
     a -> b,
     g(?x) -> ?x ]
Apply Direct Methods...
Inner CPs:
   [ f(b,?x) = f(a,g(?x)) ]
Outer CPs:
   [  ]
Linear
(inner) Parallel CPs:
   [ f(b,?x) = f(a,g(?x)) {} ]
unknown Toyama (Parallel CPs)
Direct Methods: Can't judge

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