What can be inferred from the following premises in a single inference step (ignoring inferences that add new predicates or constants)? forall x: S(x) <-> Q(x). Q(a_7) <-> T(a). forall y_2: ~T(y_2).
Q(a_7) -> T(a). T(a) -> Q(a_7). forall x: S(x) -> Q(x). forall x: Q(x) -> S(x).