Consider the following premises. For all x_11, x_11 will make tea or x_11 will climb a mountain. For all x_11, if x_11 were excited, then x_11 is fast. For all x_11, x_11 will not make tea or x_11 is excited. For all x_11, x_11 is not a mechanic. For all x_11, if x_11 climbs a mountain, then x_11 is fast. For all x_11, x_11 is a mechanic or x_11 is a bartender. Can we infer the following from them? There is at least one x_11 for which x_11 is not fast.
 From the fact that for all x_11, x_11 will make tea or x_11 will climb a mountain, and that for all x_11, x_11 will not make tea or x_11 is excited we can infer that for all x_11, x_11 will climb a mountain or x_11 is excited. From the fact that for all x_11, if x_11 climbs a mountain, then x_11 is fast, that for all x_11, if x_11 were excited, then x_11 is fast, and that for all x_11, x_11 will climb a mountain or x_11 is excited we can infer that for all x_11, x_11 is fast. From the fact that for all x_11, x_11 is a mechanic or x_11 is a bartender, and that for all x_11, x_11 is not a mechanic we can infer that for all x_11, x_11 is a bartender. From the fact that for all x_11, x_11 is fast, and that for all x_11, x_11 is a bartender we can infer that for all x_11, x_11 is fast and x_11 is a bartender. Finally, from the fact that for all x_11, x_11 is fast and x_11 is a bartender we can infer that for all x_11, x_11 is fast, which contradicts that There is at least one x_11 for which x_11 is not fast. Therefore, the answer is no.