What can be inferred from the following premises in a single inference step (ignoring inferences that add new predicates or constants)? forall x_6: T_1(x_6) -> ~P_6(x_6). exists x_6: P_6(x_6) and Q_6(x_6).
exists x_6: P_6(x_6). exists x_6: Q_6(x_6).