What can be inferred from the following premises in a single inference step (ignoring inferences that add new predicates or constants)? Name the inference rule being used: For all y, y is a musician. For all y, y will listen to a song.
For all y, y is a musician and y will listen to a song can be inferred via the universal conjunction rule. For all y, y will listen to a song and y is a musician can be inferred via the universal conjunction rule.