What can be inferred from the following premises in a single inference step (ignoring inferences that add new predicates or constants)? exists y: W(y) or ~P(y). forall y: U_4(y) <-> P(y).
exists y: P(y) -> W(y). forall y: U_4(y) -> P(y). forall y: P(y) -> U_4(y).