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