What can be inferred from the following premises in a single inference step (ignoring inferences that add new predicates or constants)? Name the inference rule being used: If Linda were a politician, then it is not cold. It is windy if and only if it is snowing. Linda is a politician or it is windy. It is cold.
Linda is not a politician can be inferred via the modus tollens rule. If it is windy, then it is snowing can be inferred via the biconditional elimination rule. If it snows, then it is windy can be inferred via the biconditional elimination rule.