What can be inferred from the following premises in a single inference step (ignoring inferences that add new predicates or constants)? Name the inference rule being used: forall x_11: Q(x_11). forall x_11: R_2(x_11). exists x_11: Q_11(x_11).
forall x_11: Q(x_11) and R_2(x_11) can be inferred via the universal conjunction rule. forall x_11: R_2(x_11) and Q(x_11) can be inferred via the universal conjunction rule. exists x_11: Q_11(x_11) and Q(x_11) can be inferred via the existential conjunction rule. exists x_11: Q_11(x_11) and R_2(x_11) can be inferred via the existential conjunction rule. exists x_11: Q(x_11) and Q_11(x_11) can be inferred via the existential conjunction rule. exists x_11: R_2(x_11) and Q_11(x_11) can be inferred via the existential conjunction rule.