Consider the following premises. For all x_8, x_8 will drive a car if and only if x_8 will work. For all x_8, x_8 will work if and only if x_8 will drive a car. Can we infer the following from them? For all x_8, if x_8 drives a car, then x_8 is working.
 From the fact that for all x_8, x_8 will work if and only if x_8 will drive a car we can infer that for all x_8, if x_8 works, then x_8 is driving a car. Finally, from the fact that for all x_8, x_8 will drive a car if and only if x_8 will work we can infer that for all x_8, if x_8 drives a car, then x_8 is working. Therefore, the answer is yes.