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, x_8 will take a plane or x_8 will go running. For all x_8, x_8 is a carpenter or x_8 will not go running. For all x_8, x_8 is a carpenter if and only if x_8 will take a plane.
For all x_8, if x_8 goes running, then x_8 is a carpenter. For all x_8, if x_8 were a carpenter, then x_8 is taking a plane. For all x_8, if x_8 takes a plane, then x_8 is a carpenter.