Consider the following premises. There is at least one x for which x will go running or x will not take a plane. For all x, if x climbs a mountain, then x is taking a plane. For all x, if x goes running, then x is climbing a mountain. Can we infer the following from them? If we can, name the inference rule being used: There is at least one x for which x will go running or x will not take a plane.
That is one of the premises. Therefore, the answer is yes.