What can be inferred from the following premises in a single inference step (ignoring inferences that add new predicates or constants)? For all z, if z were a doctor, then z is driving a car. For all z, if z were a politician, then z is a doctor. There is at least one z for which if z were a cashier, then z is bored. For all z, if z were bored, then z is a politician.
For all z, if z were a politician, then z is driving a car. For all z, if z were bored, then z is a doctor. There is at least one z for which if z were a cashier, then z is a politician.