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 snowing if and only if it is windy. If Jennifer were a poet, then it is windy. If Jennifer were not a poet, then it is raining. It is snowing if and only if Jennifer is a sailor. Jennifer is not a sailor.
If it snows, then it is windy can be inferred via the biconditional elimination rule. If it snows, then Jennifer is a sailor can be inferred via the biconditional elimination rule. If it is windy, then it is snowing can be inferred via the biconditional elimination rule. If Jennifer were a sailor, then it is snowing can be inferred via the biconditional elimination rule. It is not snowing can be inferred via the biconditional elimination rule.