What can be inferred from the following premises in a single inference step (ignoring inferences that add new predicates or constants)? Michael is not sleeping. Michael is a police officer or John is working. For all x_7, x_7 is a police officer if and only if x_7 will sleep.
For all x_7, if x_7 were a police officer, then x_7 is sleeping. For all x_7, if x_7 sleeps, then x_7 is a police officer.