MAYBE
(ignored inputs)COMMENT doi:10.1007/978-3-540-31982-5_30 [42] Example 1
input TRS:
   [ c -> f(c,c),
     c -> g(c,c),
     f(?x,f(?x,?x)) -> c ]
TRS:
   [ c -> f(c,c),
     c -> g(c,c),
     f(?x,f(?x,?x)) -> c ]
New rules by rule reversing:
   [ c -> c,
     f(c,c) -> c,
     c -> c,
     g(c,c) -> c,
     f(?x,f(?x,?x)) -> c ]
unknown Weight-Decreasing Joinable
problems/226.trs: Failure(unknown UNC)
(16 msec.)