What can be inferred from the following premises in a single inference step (ignoring inferences that add new predicates or constants)? If it is sunny, then it is cloudy. Jennifer is playing tennis if and only if it is cloudy. Jennifer is not playing tennis. If it is cloudy, then it is sunny.
It is sunny if and only if it is cloudy. It is cloudy if and only if it is sunny. If Jennifer plays tennis, then it is cloudy. If it is cloudy, then Jennifer is playing tennis. It is not cloudy.