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_9: P_2(x_9) or P(x_9). forall x_9: S(x_9). forall x_9: S(x_9) -> T(x_9). forall x_9: ~P_2(x_9).
forall x_9: T(x_9) can be inferred via the universal modus ponens rule. forall x_9: P(x_9) can be inferred via the universal disjunctive syllogism rule.