Consider the following premises. There is at least one x_9 for which if x_9 reads a book, then x_9 is a poet. For all x_9, x_9 is not a lawyer. For all x_9, x_9 will read a book if and only if x_9 is poor. For all x_9, if x_9 were a poet, then x_9 is a lawyer. Can we infer the following from them? If we can, name the inference rule being used: For all x_9, if x_9 were a poet, then x_9 is a lawyer.
That is one of the premises. Therefore, the answer is yes.