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: James is taking a plane if and only if Linda is bored. Linda is bored or James is not taking a plane.
If James takes a plane, then Linda is bored can be inferred via the rewriting rule. If James takes a plane, then Linda is bored can be inferred via the biconditional elimination rule. If Linda were bored, then James is taking a plane can be inferred via the biconditional elimination rule.