Consider the following premises. If William were a musician, then Karen is taking a plane. Karen is not taking a plane. James is a lawyer. If Thomas were a police officer, then William is a musician. Can we infer the following from them? If we can, name the inference rule being used: James is a lawyer and Thomas is not a police officer.
 From the fact that if Thomas were a police officer, then William is a musician, and that if William were a musician, then Karen is taking a plane we can infer that if Thomas were a police officer, then Karen is taking a plane via transitivity. From the fact that if Thomas were a police officer, then Karen is taking a plane, and that Karen is not taking a plane we can infer that Thomas is not a police officer via modus tollens. Finally, from the fact that James is a lawyer, and that Thomas is not a police officer we can infer that James is a lawyer and Thomas is not a police officer via conjunction. Therefore, the answer is yes.