Consider the following premises. There is at least one x_8 for which x_8 will not read a book. For all x_8, if x_8 makes tea, then x_8 is reading a book. For all x_8, x_8 will read a book if and only if x_8 is an office clerk. For all x_8, if x_8 were an office clerk, then x_8 is making tea. Can we infer the following from them? For all x_8, x_8 is an office clerk.
 From the fact that for all x_8, x_8 will read a book if and only if x_8 is an office clerk we can infer that for all x_8, if x_8 reads a book, then x_8 is an office clerk. From the fact that for all x_8, if x_8 were an office clerk, then x_8 is making tea, and that for all x_8, if x_8 makes tea, then x_8 is reading a book we can infer that for all x_8, if x_8 were an office clerk, then x_8 is reading a book. From the fact that for all x_8, if x_8 were an office clerk, then x_8 is reading a book, and that for all x_8, if x_8 reads a book, then x_8 is an office clerk we can infer that for all x_8, x_8 is an office clerk if and only if x_8 will read a book. Finally, from the fact that for all x_8, x_8 is an office clerk if and only if x_8 will read a book, and that there is at least one x_8 for which x_8 will not read a book we can infer that there is at least one x_8 for which x_8 is not an office clerk, which contradicts that For all x_8, x_8 is an office clerk. Therefore, the answer is no.