Consider the following premises. For all x_11, if x_11 were fast, then x_11 is running. For all x_11, x_11 is fast or x_11 is not happy. For all x_11, if x_11 goes running, then x_11 is happy. For all x_11, x_11 is not a bartender. For all x_11, x_11 is a bartender if and only if x_11 will go running. Can we infer the following from them? For all x_11, x_11 is not fast.
 From the fact that for all x_11, x_11 is fast or x_11 is not happy we can infer that for all x_11, if x_11 were happy, then x_11 is fast. From the fact that for all x_11, if x_11 goes running, then x_11 is happy, and that for all x_11, if x_11 were happy, then x_11 is fast we can infer that for all x_11, if x_11 goes running, then x_11 is fast. From the fact that for all x_11, x_11 is a bartender if and only if x_11 will go running, and that for all x_11, x_11 is not a bartender we can infer that for all x_11, x_11 will not go running. From the fact that for all x_11, if x_11 goes running, then x_11 is fast, and that for all x_11, if x_11 were fast, then x_11 is running we can infer that for all x_11, x_11 will go running if and only if x_11 is fast. Finally, from the fact that for all x_11, x_11 will go running if and only if x_11 is fast, and that for all x_11, x_11 will not go running we can infer that for all x_11, x_11 is not fast. Therefore, the answer is yes.