MAYBE
(ignored inputs)COMMENT TPDB SRS_Standard/Zantema_06/09
Rewrite Rules:
   [ a(s(?x)) -> s(a(?x)),
     b(a(b(s(?x)))) -> a(b(s(a(?x)))),
     b(a(b(b(?x)))) -> c(s(?x)),
     c(s(?x)) -> a(b(a(b(?x)))),
     a(b(a(a(?x)))) -> b(a(b(a(?x)))) ]
Apply Direct Methods...
Inner CPs:
   [ b(a(b(a(b(s(a(?x_1))))))) = c(s(a(b(s(?x_1))))),
     a(b(a(s(a(?x))))) = b(a(b(a(s(?x))))),
     b(a(b(c(s(?x))))) = c(s(a(b(b(?x))))),
     a(b(a(b(a(b(a(?x))))))) = b(a(b(a(b(a(a(?x))))))) ]
Outer CPs:
   [  ]
Linear
(inner) Parallel CPs: (not computed)
unknown Toyama (Parallel CPs)
Direct Methods: Can't judge

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