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: Jessica is drinking water if and only if it is raining. It is cloudy. Jessica is drinking water if and only if it is cloudy.
If Jessica drinks water, then it is raining can be inferred via the biconditional elimination rule. If Jessica drinks water, then it is cloudy can be inferred via the biconditional elimination rule. If it rains, then Jessica is drinking water can be inferred via the biconditional elimination rule. If it is cloudy, then Jessica is drinking water can be inferred via the biconditional elimination rule.