Consider the following premises. For all x_9, if x_9 were poor, then x_9 is driving a car. For all x_9, if x_9 sleeps, then x_9 is reading a book. For all x_9, if x_9 reads a book, then x_9 is driving a car. For all x_9, x_9 is poor. Can we infer the following from them? If we can, name the inference rule being used: Robert is driving a car.
 From the fact that for all x_9, x_9 is poor we can infer that for all x_9, x_9 is poor or x_9 will sleep via universal addition. From the fact that for all x_9, if x_9 sleeps, then x_9 is reading a book, and that for all x_9, if x_9 reads a book, then x_9 is driving a car we can infer that for all x_9, if x_9 sleeps, then x_9 is driving a car via universal transitivity. From the fact that for all x_9, if x_9 were poor, then x_9 is driving a car, that for all x_9, if x_9 sleeps, then x_9 is driving a car, and that for all x_9, x_9 is poor or x_9 will sleep we can infer that for all x_9, x_9 will drive a car via universal disjunction elimination. Finally, from the fact that for all x_9, x_9 will drive a car we can infer that Robert is driving a car via universal instantiation. Therefore, the answer is yes.