What can be inferred from the following premises in a single inference step (ignoring inferences that add new predicates or constants)? Charles is playing tennis. For all x_16, x_16 is an office clerk or x_16 will not play tennis. For all x_16, x_16 is an office clerk if and only if x_16 will play a game.
There is at least one x for which x will play tennis. For all x_16, if x_16 plays tennis, then x_16 is an office clerk. For all x_16, if x_16 were an office clerk, then x_16 is playing a game. For all x_16, if x_16 plays a game, then x_16 is an office clerk.