What can be inferred from the following premises in a single inference step (ignoring inferences that add new predicates or constants)? For all z_3, if z_3 goes running, then z_3 is working. There is at least one z_3 for which if z_3 works, then z_3 is running. For all z_3, if z_3 works, then z_3 is running.
For all z_3, z_3 will go running if and only if z_3 will work. For all z_3, z_3 will work if and only if z_3 will go running. There is at least one z_3 for which z_3 will work if and only if z_3 will go running. There is at least one z_3 for which z_3 will go running if and only if z_3 will work.