Consider the following premises. For all x_9, x_9 will not play squash. For all x_9, x_9 will play squash or x_9 is a server. For all x_9, x_9 is not a server or x_9 is an office clerk. David is not playing a game. Can we infer the following from them? If we can, name the inference rule being used: Richard is listening to a song.
We cannot infer that from the premises. Therefore the answer is no.