What can be inferred from the following premises in a single inference step (ignoring inferences that add new predicates or constants)? forall y: ~S(y). forall y: S(y) <-> P_3(y). forall y: W_1(y) -> P_3(y). forall y: P_3(y) -> W_1(y).
forall y: W_1(y) <-> P_3(y). forall y: P_3(y) <-> W_1(y). forall y: S(y) -> P_3(y). forall y: P_3(y) -> S(y). forall y: ~P_3(y).