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