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