What can be inferred from the following premises in a single inference step (ignoring inferences that add new predicates or constants)? For all x_3, x_3 will climb a mountain if and only if x_3 is curious. For all x_3, if x_3 plays a game, then x_3 is curious. There is at least one x_3 for which x_3 will climb a mountain or x_3 will play a game.
For all x_3, if x_3 climbs a mountain, then x_3 is curious. For all x_3, if x_3 were curious, then x_3 is climbing a mountain.