What can be inferred from the following premises in a single inference step (ignoring inferences that add new predicates or constants)? For all x, if x climbs a mountain, then x is a soldier. There is at least one x for which x will climb a mountain if and only if x is a soldier.
There is at least one x for which if x climbs a mountain, then x is a soldier. There is at least one x for which if x were a soldier, then x is climbing a mountain.