What can be inferred from the following premises in a single inference step (ignoring inferences that add new predicates or constants)? It is late if and only if Linda is a nurse. It is windy if and only if it is late. Linda is not a nurse.
If it is late, then Linda is a nurse. If it is windy, then it is late. If Linda were a nurse, then it is late. If it is late, then it is windy. It is not late.