What can be inferred from the following premises in a single inference step (ignoring inferences that add new predicates or constants)? forall x: Q(x) or ~T(x). forall x: ~P_4(x). forall x: P_4(x) <-> Q(x).
forall x: T(x) -> Q(x). forall x: P_4(x) -> Q(x). forall x: Q(x) -> P_4(x). forall x: ~Q(x).