What can be inferred from the following premises in a single inference step (ignoring inferences that add new predicates or constants)? It is cloudy if and only if Jennifer is a writer. If Jennifer were a writer, then it is cloudy. If it is cloudy, then Jennifer is a writer.
Jennifer is a writer if and only if it is cloudy. It is cloudy if and only if Jennifer is a writer. If it is cloudy, then Jennifer is a writer. If Jennifer were a writer, then it is cloudy.