MAYBE
(ignored inputs)COMMENT doi:10.1007/978-3-642-40885-4_22 [44] Example 8 submitted by: Tsubasa Suzuki , Takahito Aoto , and Yoshihito Toyama
input TRS:
   [ a -> h(c),
     a -> h(f(c)),
     h(?x) -> h(h(?x)),
     f(?x) -> f(g(?x)) ]
TRS:
   [ a -> h(c),
     a -> h(f(c)),
     h(?x) -> h(h(?x)),
     f(?x) -> f(g(?x)) ]
New rules by rule reversing:
   [ a -> a,
     h(c) -> a,
     a -> a,
     h(f(c)) -> a,
     h(?x) -> h(?x),
     h(h(?x)) -> h(?x),
     f(?x) -> f(?x),
     f(g(?x)) -> f(?x) ]
Check distinct normal forms in critical pair closure...failed
problems/245.trs: Failure(unknown UNC)
(4 msec.)