Consider the following premises. If Michael drives a car, then it is windy. If it is windy, then Robert is playing a game. If it is windy, then Michael is driving a car. If Robert plays a game, then Michael is driving a car. Can we infer the following from them? If we can, name the inference rule being used: If is not true that Michael is driving a car if and only if it is windy.
 From the fact that if it is windy, then Robert is playing a game, and that if Robert plays a game, then Michael is driving a car we can infer that if it is windy, then Michael is driving a car via transitivity. Finally, from the fact that if Michael drives a car, then it is windy, and that if it is windy, then Michael is driving a car we can infer that Michael is driving a car if and only if it is windy via biconditional introduction, which contradicts that If is not true that Michael is driving a car if and only if it is windy. Therefore, the answer is no.