Consider the following premises. For all x_6, x_6 is not a police officer. For all x_6, x_6 will drive a car if and only if x_6 is a poet. For all x_6, if x_6 were a poet, then x_6 is not taking a plane. For all x_6, x_6 is a police officer or x_6 will take a plane. Can we infer the following from them? For all x_6, x_6 will not drive a car.
 From the fact that for all x_6, x_6 is a police officer or x_6 will take a plane, and that for all x_6, x_6 is not a police officer we can infer that for all x_6, x_6 will take a plane. From the fact that for all x_6, if x_6 were a poet, then x_6 is not taking a plane, and that for all x_6, x_6 will take a plane we can infer that for all x_6, x_6 is not a poet. Finally, from the fact that for all x_6, x_6 will drive a car if and only if x_6 is a poet, and that for all x_6, x_6 is not a poet we can infer that for all x_6, x_6 will not drive a car. Therefore, the answer is yes.