What can be inferred from the following premises in a single inference step (ignoring inferences that add new predicates or constants)? forall x_18: Q_18(x_18) or Q_12(x_18). exists x_18: T(x_18) or ~Q_12(x_18). forall x_18: T(x_18) <-> Q_18(x_18).
exists x_18: Q_12(x_18) -> T(x_18). forall x_18: T(x_18) -> Q_18(x_18). forall x_18: Q_18(x_18) -> T(x_18).