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