What can be inferred from the following premises in a single inference step (ignoring inferences that add new predicates or constants)? There is at least one z for which z is a mechanic or z will not read a book. For all z, z is poor or z is not a mechanic.
For all z, if z were a mechanic, then z is poor. There is at least one z for which if z reads a book, then z is a mechanic.