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_2: P_2(x_2) or S(x_2). forall x_2: ~P_2(x_2). forall x_2: T_4(x_2) -> ~S(x_2).
forall x_2: S(x_2) can be inferred via the universal disjunctive syllogism rule.