Consider the following premises. It is cold or Susan is not driving a car. If Michael were a police officer, then Susan is driving a car. Michael is a police officer or it is not cold. Can we infer the following from them? Susan is driving a car if and only if it is cold.
 From the fact that Michael is a police officer or it is not cold we can infer that if it is cold, then Michael is a police officer. From the fact that it is cold or Susan is not driving a car we can infer that if Susan drives a car, then it is cold. From the fact that if it is cold, then Michael is a police officer, and that if Michael were a police officer, then Susan is driving a car we can infer that if it is cold, then Susan is driving a car. Finally, from the fact that if Susan drives a car, then it is cold, and that if it is cold, then Susan is driving a car we can infer that Susan is driving a car if and only if it is cold. Therefore, the answer is yes.