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 poor, then z is working. There is at least one z for which z is a lawyer if and only if z is a soldier. For all z, if z were a lawyer, then z is poor.
For all z, if z were a lawyer, then z is working. There is at least one z for which if z were a lawyer, then z is a soldier. There is at least one z for which if z were a soldier, then z is a lawyer.