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 y_3 for which y_3 is rich if and only if y_3 will climb a mountain.
There is at least one y_3 for which if y_3 were rich, then y_3 is climbing a mountain. There is at least one y_3 for which if y_3 climbs a mountain, then y_3 is rich.