Consider the following premises. For all y, if y plays squash, then y is playing a game. There is at least one y for which y will play squash if and only if y will take a plane. For all y, y will not take a plane. For all y, if y plays a game, then y is playing squash. Can we infer the following from them? If we can, name the inference rule being used: For all y, if y plays squash, then y is playing a game.
That is one of the premises. Therefore, the answer is yes.