Consider the following premises. For all x_6, x_6 is not a taxi driver. There is at least one x_6 for which if x_6 climbs a mountain, then x_6 is running. For all x_6, if x_6 goes running, then x_6 is climbing a mountain. For all x_6, if x_6 goes running, then x_6 is a taxi driver. Can we infer the following from them? For all x_6, x_6 will climb a mountain.
 From the fact that for all x_6, if x_6 goes running, then x_6 is climbing a mountain, and that there is at least one x_6 for which if x_6 climbs a mountain, then x_6 is running we can infer that there is at least one x_6 for which x_6 will go running if and only if x_6 will climb a mountain. From the fact that for all x_6, if x_6 goes running, then x_6 is a taxi driver, and that for all x_6, x_6 is not a taxi driver we can infer that for all x_6, x_6 will not go running. Finally, from the fact that there is at least one x_6 for which x_6 will go running if and only if x_6 will climb a mountain, and that for all x_6, x_6 will not go running we can infer that there is at least one x_6 for which x_6 will not climb a mountain, which contradicts that For all x_6, x_6 will climb a mountain. Therefore, the answer is no.