Consider the following premises. If it is late, then it is windy. Sarah is working if and only if it is late. If it is windy, then Charles is driving a car. Can we infer the following from them? The fact that Sarah works does not imply that Charles is driving a car.
 From the fact that Sarah is working if and only if it is late we can infer that if Sarah works, then it is late. From the fact that if Sarah works, then it is late, and that if it is late, then it is windy we can infer that if Sarah works, then it is windy. Finally, from the fact that if Sarah works, then it is windy, and that if it is windy, then Charles is driving a car we can infer that if Sarah works, then Charles is driving a car, which contradicts that The fact that Sarah works does not imply that Charles is driving a car. Therefore, the answer is no.