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 it is windy, then it is snowing. If Jennifer were a janitor, then it is windy. It is snowing if and only if Jennifer is a janitor.
If Jennifer were a janitor, then it is snowing can be inferred via the transitivity rule. If it snows, then Jennifer is a janitor can be inferred via the biconditional elimination rule. If Jennifer were a janitor, then it is snowing can be inferred via the biconditional elimination rule.