What can be inferred from the following premises in a single inference step (ignoring inferences that add new predicates or constants)? Name the inference rule being used: forall x_5: Q_7(x_5) -> S_5(x_5). forall x_7: P_7(x_7) -> Q_7(x_7). forall x_7: P_7(x_7).
forall x_7: Q_7(x_7) can be inferred via the universal modus ponens rule.