What can be inferred from the following premises in a single inference step (ignoring inferences that add new predicates or constants)? forall x_16: P_16(x_16) -> W(x_16). forall x_16: P_16(x_16). exists x_16: W(x_16) -> P_16(x_16).
forall x_16: W(x_16). exists x_16: W(x_16) <-> P_16(x_16). exists x_16: P_16(x_16) <-> W(x_16).