Consider the following premises. For all x_13, if x_13 were a poet, then x_13 is running. For all x_13, if x_13 goes running, then x_13 is a poet. For all x_13, if x_13 were a poet, then x_13 is an office clerk. For all x_13, if x_13 were an office clerk, then x_13 is a doctor. For all x_13, x_13 is not a doctor. Can we infer the following from them? For all x_13, x_13 will not go running.
 From the fact that for all x_13, if x_13 goes running, then x_13 is a poet, and that for all x_13, if x_13 were a poet, then x_13 is running we can infer that for all x_13, x_13 will go running if and only if x_13 is a poet. From the fact that for all x_13, if x_13 were an office clerk, then x_13 is a doctor, and that for all x_13, x_13 is not a doctor we can infer that for all x_13, x_13 is not an office clerk. From the fact that for all x_13, if x_13 were a poet, then x_13 is an office clerk, and that for all x_13, x_13 is not an office clerk we can infer that for all x_13, x_13 is not a poet. From the fact that for all x_13, x_13 will go running if and only if x_13 is a poet we can infer that for all x_13, if x_13 goes running, then x_13 is a poet. Finally, from the fact that for all x_13, if x_13 goes running, then x_13 is a poet, and that for all x_13, x_13 is not a poet we can infer that for all x_13, x_13 will not go running. Therefore, the answer is yes.