Consider the following premises. There is at least one x_10 for which x_10 is a bartender if and only if x_10 is a writer. For all x_10, x_10 is not a bartender. For all x_10, x_10 will play a game or x_10 is a writer. For all x_10, x_10 will not play a game or x_10 will play squash. Can we infer the following from them? There is at least one x_10 for which x_10 will play squash.
 From the fact that for all x_10, x_10 will play a game or x_10 is a writer, and that for all x_10, x_10 will not play a game or x_10 will play squash we can infer that for all x_10, x_10 is a writer or x_10 will play squash. From the fact that there is at least one x_10 for which x_10 is a bartender if and only if x_10 is a writer, and that for all x_10, x_10 is not a bartender we can infer that there is at least one x_10 for which x_10 is not a writer. Finally, from the fact that for all x_10, x_10 is a writer or x_10 will play squash, and that there is at least one x_10 for which x_10 is not a writer we can infer that there is at least one x_10 for which x_10 will play squash. Therefore, the answer is yes.