What can be inferred from the following premises in a single inference step (ignoring inferences that add new predicates or constants)? It is not windy. Michael is driving a car if and only if Mary is playing a game. Michael is driving a car if and only if Michael is a politician. If Michael were a politician, then it is windy.
Michael is not a politician. If Michael drives a car, then Mary is playing a game. If Michael drives a car, then Michael is a politician. If Mary plays a game, then Michael is driving a car. If Michael were a politician, then Michael is driving a car.