Consider the following premises. If Richard were a sailor, then Richard is a scientist. For all x_8, if x_8 were a writer, then x_8 is a sailor. For all x_8, if x_8 were a scientist, then x_8 is a writer. Can we infer the following from them? If Richard were a sailor, then Richard is a scientist.
That is one of the premises. Therefore, the answer is yes.