Consider the following premises. For all x_5, x_5 is bored or x_5 will play tennis. For all x_5, if x_5 plays tennis, then x_5 is taking a plane. For all x_5, if x_5 were bored, then x_5 is taking a plane. For all x_5, x_5 will sleep. Can we infer the following from them? There is at least one x_5 for which x_5 will not take a plane.
 From the fact that for all x_5, if x_5 were bored, then x_5 is taking a plane, that for all x_5, if x_5 plays tennis, then x_5 is taking a plane, and that for all x_5, x_5 is bored or x_5 will play tennis we can infer that for all x_5, x_5 will take a plane. From the fact that for all x_5, x_5 will take a plane, and that for all x_5, x_5 will sleep we can infer that for all x_5, x_5 will take a plane and x_5 will sleep. Finally, from the fact that for all x_5, x_5 will take a plane and x_5 will sleep we can infer that for all x_5, x_5 will take a plane, which contradicts that There is at least one x_5 for which x_5 will not take a plane. Therefore, the answer is no.