NO
(ignored inputs)COMMENT [111] p. 30 ( GUN & ~UN & ~GUNC )
input TRS:
   [ b -> a,
     b -> c,
     c -> c,
     d -> c,
     d -> e,
     f(?x,a) -> A,
     f(?x,e) -> A,
     f(?x,A) -> A,
     f(c,?x) -> A ]
TRS:
   [ b -> a,
     b -> c,
     c -> c,
     d -> c,
     d -> e,
     f(?x,a) -> A,
     f(?x,e) -> A,
     f(?x,A) -> A,
     f(c,?x) -> A ]
Check distinct normal forms in critical pair closure
convertible distinct normal forms: a = e
problems/511.trs: Success(not UNC)
(4 msec.)