What can be inferred from the following premises in a single inference step (ignoring inferences that add new predicates or constants)? exists y: Q_2(y) or W(y). forall y: T_3(y) -> T(y). forall y: W(y) -> T(y). forall y: T(y) -> T_3(y). forall y: Q_2(y) -> T_3(y).
forall y: W(y) -> T_3(y). forall y: Q_2(y) -> T(y). forall y: T_3(y) <-> T(y). forall y: T(y) <-> T_3(y).