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