Consider the following premises. If Richard were a soldier, then it is overcast. For all x_10, if x_10 plays tennis, then x_10 is a soldier. It is not overcast. Can we infer the following from them? Richard is playing tennis.
 From the fact that for all x_10, if x_10 plays tennis, then x_10 is a soldier we can infer that if Richard plays tennis, then Richard is a soldier. From the fact that if Richard plays tennis, then Richard is a soldier, and that if Richard were a soldier, then it is overcast we can infer that if Richard plays tennis, then it is overcast. Finally, from the fact that if Richard plays tennis, then it is overcast, and that it is not overcast we can infer that Richard is not playing tennis, which contradicts that Richard is playing tennis. Therefore, the answer is no.