What can be inferred from the following premises in a single inference step (ignoring inferences that add new predicates or constants)? forall x_11: ~P_5(x_11). forall x_11: S_2(x_11) <-> Q(x_11). exists x_11: P_5(x_11) <-> Q(x_11).
forall x_11: S_2(x_11) -> Q(x_11). exists x_11: P_5(x_11) -> Q(x_11). forall x_11: Q(x_11) -> S_2(x_11). exists x_11: Q(x_11) -> P_5(x_11). exists x_11: ~Q(x_11).