What can be inferred from the following premises in a single inference step (ignoring inferences that add new predicates or constants)? forall y: Q(y) <-> S(y). ~S(e_3). Q(e_3) <-> q.
Q(e_3) -> q. q -> Q(e_3). forall y: Q(y) -> S(y). forall y: S(y) -> Q(y).