Consider the following premises. Linda is making tea if and only if Richard is happy. If William drives a car, then Linda is reading a book. If Linda reads a book, then William is driving a car. If William drives a car, then Richard is happy. Linda is not making tea. Can we infer the following from them? If we can, name the inference rule being used: Linda is reading a book.
 From the fact that Linda is making tea if and only if Richard is happy, and that Linda is not making tea we can infer that Richard is not happy via biconditional elimination. From the fact that if William drives a car, then Richard is happy, and that Richard is not happy we can infer that William is not driving a car via modus tollens. From the fact that if William drives a car, then Linda is reading a book, and that if Linda reads a book, then William is driving a car we can infer that William is driving a car if and only if Linda is reading a book via biconditional introduction. Finally, from the fact that William is driving a car if and only if Linda is reading a book, and that William is not driving a car we can infer that Linda is not reading a book via biconditional elimination, which contradicts that Linda is reading a book. Therefore, the answer is no.