Consider the following premises. For all x_9, if x_9 drives a car, then x_9 is curious. For all x_9, if x_9 were curious, then x_9 is a police officer. For all x_9, if x_9 takes a plane, then x_9 is poor. For all x_9, x_9 will take a plane or x_9 is not a police officer. Can we infer the following from them? If we can, name the inference rule being used: For all x_9, if x_9 drives a car, then x_9 is poor.
 From the fact that for all x_9, if x_9 drives a car, then x_9 is curious, and that for all x_9, if x_9 were curious, then x_9 is a police officer we can infer that for all x_9, if x_9 drives a car, then x_9 is a police officer via universal transitivity. From the fact that for all x_9, x_9 will take a plane or x_9 is not a police officer we can infer that for all x_9, if x_9 were a police officer, then x_9 is taking a plane via universal rewriting. From the fact that for all x_9, if x_9 drives a car, then x_9 is a police officer, and that for all x_9, if x_9 were a police officer, then x_9 is taking a plane we can infer that for all x_9, if x_9 drives a car, then x_9 is taking a plane via universal transitivity. Finally, from the fact that for all x_9, if x_9 drives a car, then x_9 is taking a plane, and that for all x_9, if x_9 takes a plane, then x_9 is poor we can infer that for all x_9, if x_9 drives a car, then x_9 is poor via universal transitivity. Therefore, the answer is yes.