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: exists x_14: ~P_14(x_14). forall x_14: W(x_14) -> P_4(x_14). forall x_14: P_4(x_14) -> S_4(x_14). forall x_14: P_14(x_14) or W(x_14).
forall x_14: W(x_14) -> S_4(x_14) can be inferred via the universal transitivity rule. exists x_14: W(x_14) can be inferred via the existential disjunctive syllogism rule.