What can be inferred from the following premises in a single inference step (ignoring inferences that add new predicates or constants)? For all x_17, if x_17 climbs a mountain, then x_17 is listening to a song. If it is windy, then Jessica is climbing a mountain. Jessica is climbing a mountain. If Jessica listens to a song, then it is windy.
If Jessica listens to a song, then Jessica is climbing a mountain. There is at least one x for which x will climb a mountain.