Consider the following premises. For all x_6, x_6 will not drink water. For all x_6, x_6 will drink water or x_6 will play tennis. For all x_6, x_6 will play a game or x_6 will not play tennis. Can we infer the following from them? There is at least one x_6 for which x_6 will not play a game.
 From the fact that for all x_6, x_6 will play a game or x_6 will not play tennis we can infer that for all x_6, if x_6 plays tennis, then x_6 is playing a game. From the fact that for all x_6, x_6 will drink water or x_6 will play tennis, and that for all x_6, x_6 will not drink water we can infer that for all x_6, x_6 will play tennis. Finally, from the fact that for all x_6, if x_6 plays tennis, then x_6 is playing a game, and that for all x_6, x_6 will play tennis we can infer that for all x_6, x_6 will play a game, which contradicts that There is at least one x_6 for which x_6 will not play a game. Therefore, the answer is no.