What can be inferred from the following premises in a single inference step (ignoring inferences that add new predicates or constants)? forall x_15: P_11(x_15). exists x_15: P_15(x_15) -> Q_15(x_15). forall x_15: T_1(x_15) -> ~S(x_15). forall x_15: Q_15(x_15) -> S(x_15). forall x_15: P_11(x_15) -> P_15(x_15).
forall x_15: P_15(x_15). exists x_15: P_15(x_15) -> S(x_15). exists x_15: P_11(x_15) -> Q_15(x_15).