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 cloudy, then Karen is cooking. Karen is cooking if and only if it is cloudy.
If Karen cooks, then it is cloudy can be inferred via the biconditional elimination rule. If it is cloudy, then Karen is cooking can be inferred via the biconditional elimination rule.