Consider the following premises. For all x_9, x_9 is not bored. For all x_9, x_9 is not curious or x_9 is a scientist. There is at least one x_9 for which x_9 is a poet if and only if x_9 is bored. For all x_9, x_9 is curious or x_9 is a poet. Can we infer the following from them? There is at least one x_9 for which x_9 is a scientist.
 From the fact that there is at least one x_9 for which x_9 is a poet if and only if x_9 is bored, and that for all x_9, x_9 is not bored we can infer that there is at least one x_9 for which x_9 is not a poet. From the fact that for all x_9, x_9 is curious or x_9 is a poet, and that for all x_9, x_9 is not curious or x_9 is a scientist we can infer that for all x_9, x_9 is a poet or x_9 is a scientist. Finally, from the fact that for all x_9, x_9 is a poet or x_9 is a scientist, and that there is at least one x_9 for which x_9 is not a poet we can infer that there is at least one x_9 for which x_9 is a scientist. Therefore, the answer is yes.