Consider the following premises. For all x_4, if x_4 were a server, then x_4 is driving a car. For all x_4, x_4 is a lawyer. For all x_4, x_4 is a server or x_4 is a writer. For all x_4, if x_4 were a writer, then x_4 is driving a car. Can we infer the following from them? There is at least one x_4 for which either x_4 will drive a car or x_4 is a lawyer are not true.
 From the fact that for all x_4, if x_4 were a server, then x_4 is driving a car, that for all x_4, if x_4 were a writer, then x_4 is driving a car, and that for all x_4, x_4 is a server or x_4 is a writer we can infer that for all x_4, x_4 will drive a car. Finally, from the fact that for all x_4, x_4 will drive a car, and that for all x_4, x_4 is a lawyer we can infer that for all x_4, x_4 will drive a car and x_4 is a lawyer, which contradicts that There is at least one x_4 for which either x_4 will drive a car or x_4 is a lawyer are not true. Therefore, the answer is no.