What can be inferred from the following premises in a single inference step (ignoring inferences that add new predicates or constants)? exists y: P_2(y) or ~T_4(y). forall y: W_3(y) -> U(y). forall y: U(y) -> P_2(y). forall y: T_4(y) or W_3(y).
forall y: W_3(y) -> P_2(y). exists y: T_4(y) -> P_2(y).