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 cloudy if and only if Thomas is an office clerk. Barbara is not running or Jennifer is sleeping. Barbara is running or it is cloudy. Thomas is not an office clerk.
It is cloudy or Jennifer is sleeping can be inferred via the resolution rule. If it is cloudy, then Thomas is an office clerk can be inferred via the biconditional elimination rule. If Thomas were an office clerk, then it is cloudy can be inferred via the biconditional elimination rule. It is not cloudy can be inferred via the biconditional elimination rule.