What can be inferred from the following premises in a single inference step (ignoring inferences that add new predicates or constants)? For all y, y is a bartender if and only if y is a police officer. If it is overcast, then Michael is a bartender. Michael is a police officer or it is overcast.
For all y, if y were a bartender, then y is a police officer. For all y, if y were a police officer, then y is a bartender.