Consider the following premises. There is at least one x_10 for which x_10 will not go running. For all x_10, if x_10 climbs a mountain, then x_10 is running. For all x_10, x_10 is happy or x_10 will play squash. For all x_10, if x_10 were happy, then x_10 is climbing a mountain. Can we infer the following from them? There is at least one x_10 for which x_10 will not go running.
That is one of the premises. Therefore, the answer is yes.