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 plays squash, then x is running. For all x, if x goes running, then x is playing squash. For all x, x will play squash.
For all x, x will go running. For all x, x will play squash if and only if x will go running. For all x, x will go running if and only if x will play squash.