Consider the following premises. For all x_9, if x_9 goes running, then x_9 is playing a game. For all x_9, if x_9 were a musician, then x_9 is a cashier. For all x_9, x_9 is a cashier or x_9 will go running. For all x_9, if x_9 were a cashier, then x_9 is a musician. For all x_9, x_9 is not a musician. Can we infer the following from them? For all x_9, x_9 will play a game.
 From the fact that for all x_9, if x_9 were a musician, then x_9 is a cashier, and that for all x_9, if x_9 were a cashier, then x_9 is a musician we can infer that for all x_9, x_9 is a musician if and only if x_9 is a cashier. From the fact that for all x_9, x_9 is a musician if and only if x_9 is a cashier, and that for all x_9, x_9 is not a musician we can infer that for all x_9, x_9 is not a cashier. From the fact that for all x_9, x_9 is a cashier or x_9 will go running, and that for all x_9, x_9 is not a cashier we can infer that for all x_9, x_9 will go running. Finally, from the fact that for all x_9, if x_9 goes running, then x_9 is playing a game, and that for all x_9, x_9 will go running we can infer that for all x_9, x_9 will play a game. Therefore, the answer is yes.