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: It is windy if and only if it is raining. If it is sunny, then Jessica is an electrician. It is sunny. If it is windy, then Jessica is not an electrician.
Jessica is an electrician can be inferred via the modus ponens rule. If it is windy, then it is raining can be inferred via the biconditional elimination rule. If it rains, then it is windy can be inferred via the biconditional elimination rule.