What can be inferred from the following premises in a single inference step (ignoring inferences that add new predicates or constants)? For all x_8, if x_8 plays tennis, then x_8 is working. For all x_8, if x_8 climbs a mountain, then x_8 is playing tennis. If Linda works, then Linda is climbing a mountain.
For all x_8, if x_8 climbs a mountain, then x_8 is working.