Consider the following premises. For all x_14, x_14 will climb a mountain. There is at least one x_14 for which x_14 is fast. For all x_14, x_14 is a server and x_14 will play a game. Can we infer the following from them? If we can, name the inference rule being used: For all x_14, either x_14 is a server or x_14 is fast are not true.
That contradicts the premises. Therefore the answer is no.