What can be inferred from the following premises in a single inference step (ignoring inferences that add new predicates or constants)? forall y: R_1(y) -> P(y). forall y: P(y) -> W_3(y). forall y: R_4(y) or ~W_3(y).
forall y: R_1(y) -> W_3(y). forall y: W_3(y) -> R_4(y).