What can be inferred from the following premises in a single inference step (ignoring inferences that add new predicates or constants)? exists x_6: R_6(x_6) -> R_2(x_6). forall x_6: Q_6(x_6) -> R_6(x_6). forall x_6: ~R_2(x_6). forall x_6: S_3(x_6) -> Q_6(x_6).
exists x_6: ~R_6(x_6). forall x_6: S_3(x_6) -> R_6(x_6). exists x_6: Q_6(x_6) -> R_2(x_6).