Consider the following premises. For all x_2, x_2 is not a sailor. For all x_2, x_2 is a sailor or x_2 is sad. Can we infer the following from them? If we can, name the inference rule being used: For all x_2, x_2 is sad or x_2 will drive a car.
 From the fact that for all x_2, x_2 is a sailor or x_2 is sad, and that for all x_2, x_2 is not a sailor we can infer that for all x_2, x_2 is sad via universal disjunctive syllogism. Finally, from the fact that for all x_2, x_2 is sad we can infer that for all x_2, x_2 is sad or x_2 will drive a car via universal addition. Therefore, the answer is yes.