What can be inferred from the following premises in a single inference step (ignoring inferences that add new predicates or constants)? For all x_6, x_6 will not take a plane or x_6 will go running. For all x_6, if x_6 were a carpenter, then x_6 is climbing a mountain. There is at least one x_6 for which x_6 will take a plane or x_6 is a carpenter. For all x_6, x_6 will go running if and only if x_6 will climb a mountain.
There is at least one x_6 for which x_6 is a carpenter or x_6 will go running. For all x_6, if x_6 goes running, then x_6 is climbing a mountain. For all x_6, if x_6 climbs a mountain, then x_6 is running.