What can be inferred from the following premises in a single inference step (ignoring inferences that add new predicates or constants)? Jessica is playing tennis if and only if Jessica is playing squash. For all x_14, x_14 will play squash if and only if x_14 will play tennis.
If Jessica plays tennis, then Jessica is playing squash. If Jessica plays squash, then Jessica is playing tennis. For all x_14, if x_14 plays squash, then x_14 is playing tennis. For all x_14, if x_14 plays tennis, then x_14 is playing squash.