What can be inferred from the following premises in a single inference step (ignoring inferences that add new predicates or constants)? forall x_10: P_10(x_10) <-> S_1(x_10). exists x_10: P_10(x_10) -> S_1(x_10). forall x_10: S_1(x_10) -> P_10(x_10).
exists x_10: P_10(x_10) <-> S_1(x_10). exists x_10: S_1(x_10) <-> P_10(x_10). forall x_10: P_10(x_10) -> S_1(x_10). forall x_10: S_1(x_10) -> P_10(x_10).