Consider the following premises. For all x_15, x_15 will not play squash or x_15 is fast. There is at least one x_15 for which x_15 will play squash or x_15 is a police officer. For all x_15, x_15 is a police officer if and only if x_15 will write a letter. For all x_15, if x_15 were a lawyer, then x_15 is not fast. For all x_15, x_15 will not write a letter. Can we infer the following from them? For all x_15, x_15 is a lawyer.
 From the fact that there is at least one x_15 for which x_15 will play squash or x_15 is a police officer, and that for all x_15, x_15 will not play squash or x_15 is fast we can infer that there is at least one x_15 for which x_15 is a police officer or x_15 is fast. From the fact that for all x_15, x_15 is a police officer if and only if x_15 will write a letter, and that for all x_15, x_15 will not write a letter we can infer that for all x_15, x_15 is not a police officer. From the fact that there is at least one x_15 for which x_15 is a police officer or x_15 is fast, and that for all x_15, x_15 is not a police officer we can infer that there is at least one x_15 for which x_15 is fast. Finally, from the fact that for all x_15, if x_15 were a lawyer, then x_15 is not fast, and that there is at least one x_15 for which x_15 is fast we can infer that there is at least one x_15 for which x_15 is not a lawyer, which contradicts that For all x_15, x_15 is a lawyer. Therefore, the answer is no.