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 late, then Jennifer is a taxi driver. It is not raining. It is late or it is sunny. It is raining if and only if Jennifer is a taxi driver.
If it rains, then Jennifer is a taxi driver can be inferred via the biconditional elimination rule. If Jennifer were a taxi driver, then it is raining can be inferred via the biconditional elimination rule. Jennifer is not a taxi driver can be inferred via the biconditional elimination rule.