Consider the following premises. For all x_15, if x_15 writes a letter, then x_15 is reading a book. If William writes a letter, then it is late. If it is late, then it is sunny. For all x_15, if x_15 reads a book, then x_15 is writing a letter. Can we infer the following from them? If we can, name the inference rule being used: William is reading a book.
We cannot infer that from the premises. Therefore the answer is no.