Consider the following premises. There is at least one x_10 for which if x_10 were a taxi driver, then x_10 is a sailor. For all x_10, if x_10 cooks, then x_10 is not playing squash. For all x_10, x_10 is a sailor if and only if x_10 will cook. For all x_10, x_10 is a bartender or x_10 will play squash. For all x_10, x_10 is not a bartender. Can we infer the following from them? If we can, name the inference rule being used: For all x_10, x_10 is a taxi driver.
 From the fact that for all x_10, x_10 is a bartender or x_10 will play squash, and that for all x_10, x_10 is not a bartender we can infer that for all x_10, x_10 will play squash via universal disjunctive syllogism. From the fact that for all x_10, if x_10 cooks, then x_10 is not playing squash, and that for all x_10, x_10 will play squash we can infer that for all x_10, x_10 will not cook via universal modus tollens. From the fact that for all x_10, x_10 is a sailor if and only if x_10 will cook, and that for all x_10, x_10 will not cook we can infer that for all x_10, x_10 is not a sailor via universal biconditional elimination. Finally, from the fact that there is at least one x_10 for which if x_10 were a taxi driver, then x_10 is a sailor, and that for all x_10, x_10 is not a sailor we can infer that there is at least one x_10 for which x_10 is not a taxi driver via existential modus tollens, which contradicts that For all x_10, x_10 is a taxi driver. Therefore, the answer is no.