What can be inferred from the following premises in a single inference step (ignoring inferences that add new predicates or constants)? forall x_6: R(x_6) <-> T_1(x_6). exists x_6: S_1(x_6) <-> T_1(x_6). forall x_6: Q_6(x_6). forall x_6: R(x_6) -> ~Q_6(x_6).
forall x_6: ~R(x_6). forall x_6: R(x_6) -> T_1(x_6). exists x_6: S_1(x_6) -> T_1(x_6). forall x_6: T_1(x_6) -> R(x_6). exists x_6: T_1(x_6) -> S_1(x_6).