Consider the following premises. For all x_14, if x_14 were rich, then x_14 is taking a plane. For all x_14, x_14 will play a game if and only if x_14 will take a plane. There is at least one x_14 for which x_14 will not play a game. For all x_14, if x_14 were fast, then x_14 is rich. Can we infer the following from them? There is at least one x_14 for which x_14 is not fast.
 From the fact that for all x_14, x_14 will play a game if and only if x_14 will take a plane, and that there is at least one x_14 for which x_14 will not play a game we can infer that there is at least one x_14 for which x_14 will not take a plane. From the fact that for all x_14, if x_14 were rich, then x_14 is taking a plane, and that there is at least one x_14 for which x_14 will not take a plane we can infer that there is at least one x_14 for which x_14 is not rich. Finally, from the fact that for all x_14, if x_14 were fast, then x_14 is rich, and that there is at least one x_14 for which x_14 is not rich we can infer that there is at least one x_14 for which x_14 is not fast. Therefore, the answer is yes.