Consider the following premises. For all x_13, x_13 is not a scientist. For all x_13, if x_13 climbs a mountain, then x_13 is a scientist. For all x_13, x_13 will climb a mountain or x_13 is a police officer. For all x_13, if x_13 were a police officer, then x_13 is listening to a song. For all x_13, if x_13 works, then x_13 is making tea. For all x_13, x_13 will work. Can we infer the following from them? There is at least one x_13 for which either x_13 will listen to a song or x_13 will make tea are not true.
 From the fact that for all x_13, if x_13 climbs a mountain, then x_13 is a scientist, and that for all x_13, x_13 is not a scientist we can infer that for all x_13, x_13 will not climb a mountain. From the fact that for all x_13, x_13 will climb a mountain or x_13 is a police officer, and that for all x_13, x_13 will not climb a mountain we can infer that for all x_13, x_13 is a police officer. From the fact that for all x_13, if x_13 works, then x_13 is making tea, and that for all x_13, x_13 will work we can infer that for all x_13, x_13 will make tea. From the fact that for all x_13, if x_13 were a police officer, then x_13 is listening to a song, and that for all x_13, x_13 is a police officer we can infer that for all x_13, x_13 will listen to a song. Finally, from the fact that for all x_13, x_13 will listen to a song, and that for all x_13, x_13 will make tea we can infer that for all x_13, x_13 will listen to a song and x_13 will make tea, which contradicts that There is at least one x_13 for which either x_13 will listen to a song or x_13 will make tea are not true. Therefore, the answer is no.