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: W(x) or ~S_3(x). forall x: P(x) -> W(x). forall x: R(x) -> P(x). forall x: S_3(x) or R(x).
forall x: R(x) -> W(x) can be inferred via the universal transitivity rule. exists x: S_3(x) -> W(x) can be inferred via the existential rewriting rule.