What can be inferred from the following premises in a single inference step (ignoring inferences that add new predicates or constants)? ~Q(e). forall x: Q(x) <-> S_3(x). forall x: Q(x) <-> S_3(x).
forall x: Q(x) -> S_3(x). forall x: Q(x) -> S_3(x). forall x: S_3(x) -> Q(x). forall x: S_3(x) -> Q(x).