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