(=> (Inequality ?X)
(Exists (?T1 ?T2)
(And (Term ?T1)
(Term ?T2)
(= ?X (Listof '/= ?T1 ?T2)))))
(<=> (Inequality ?X)
(And (Relsent ?X)
(Exists (?T1 ?T2)
(And (Term ?T1)
(Term ?T2)
(= ?X (Listof '/= ?T1 ?T2))))))