Consider the following premises. For all x_17, if x_17 were a doctor, then x_17 is sad. For all x_17, x_17 is curious or x_17 is a bartender. There is at least one x_17 for which x_17 is not curious. For all x_17, if x_17 were poor, then x_17 is a doctor. For all x_17, if x_17 were sad, then x_17 is not a bartender. Can we infer the following from them? There is at least one x_17 for which x_17 is not poor.
 From the fact that for all x_17, x_17 is curious or x_17 is a bartender, and that there is at least one x_17 for which x_17 is not curious we can infer that there is at least one x_17 for which x_17 is a bartender. From the fact that for all x_17, if x_17 were poor, then x_17 is a doctor, and that for all x_17, if x_17 were a doctor, then x_17 is sad we can infer that for all x_17, if x_17 were poor, then x_17 is sad. From the fact that for all x_17, if x_17 were sad, then x_17 is not a bartender, and that there is at least one x_17 for which x_17 is a bartender we can infer that there is at least one x_17 for which x_17 is not sad. Finally, from the fact that for all x_17, if x_17 were poor, then x_17 is sad, and that there is at least one x_17 for which x_17 is not sad we can infer that there is at least one x_17 for which x_17 is not poor. Therefore, the answer is yes.