What can be inferred from the following premises in a single inference step (ignoring inferences that add new predicates or constants)? For all y, if y were fast, then y is listening to a song. For all y, if y plays tennis, then y is fast. There is at least one y for which y will play tennis.
There is at least one y for which y is fast. For all y, if y plays tennis, then y is listening to a song.