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 climbing a mountain. It is not windy. It is raining if and only if it is windy. Jennifer is not climbing a mountain.
It is not late can be inferred via the modus tollens rule. It is not windy and Jennifer is not climbing a mountain can be inferred via the conjunction rule. Jennifer is not climbing a mountain and it is not windy can be inferred via the conjunction rule. If it rains, then it is windy can be inferred via the biconditional elimination rule. If it is windy, then it is raining can be inferred via the biconditional elimination rule. It is not raining can be inferred via the biconditional elimination rule.