What can be inferred from the following premises in a single inference step (ignoring inferences that add new predicates or constants)? Jessica is poor if and only if Jessica is listening to a song. For all x_12, x_12 is poor if and only if x_12 will listen to a song.
If Jessica were poor, then Jessica is listening to a song. If Jessica listens to a song, then Jessica is poor. For all x_12, if x_12 were poor, then x_12 is listening to a song. For all x_12, if x_12 listens to a song, then x_12 is poor.