Consider the following premises. For all x_6, x_6 will not listen to a song. For all x_6, if x_6 were an electrician, then x_6 is listening to a song. For all x_6, if x_6 listens to a song, then x_6 is an electrician. For all x_6, if x_6 were an electrician, then x_6 is listening to a song. Can we infer the following from them? There is at least one x_6 for which x_6 is an electrician.
 From the fact that for all x_6, if x_6 listens to a song, then x_6 is an electrician, and that for all x_6, if x_6 were an electrician, then x_6 is listening to a song we can infer that for all x_6, x_6 will listen to a song if and only if x_6 is an electrician. From the fact that for all x_6, x_6 will listen to a song if and only if x_6 is an electrician we can infer that for all x_6, if x_6 listens to a song, then x_6 is an electrician. From the fact that for all x_6, if x_6 listens to a song, then x_6 is an electrician, and that for all x_6, if x_6 were an electrician, then x_6 is listening to a song we can infer that for all x_6, x_6 will listen to a song if and only if x_6 is an electrician. Finally, from the fact that for all x_6, x_6 will listen to a song if and only if x_6 is an electrician, and that for all x_6, x_6 will not listen to a song we can infer that for all x_6, x_6 is not an electrician, which contradicts that There is at least one x_6 for which x_6 is an electrician. Therefore, the answer is no.