Consider the following premises. For all x_7, if x_7 were a soldier, then x_7 is a scientist. For all x_7, x_7 is a soldier and x_7 is a poet. There is at least one x_7 for which x_7 will read a book. Can we infer the following from them? If we can, name the inference rule being used: For all x_7, either x_7 will read a book or x_7 is a scientist are not true.
That contradicts the premises. Therefore the answer is no.