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 making tea if and only if John is playing tennis. Joseph is not driving a car. Linda is playing a game if and only if James is making tea. Linda is playing a game if and only if Joseph is driving a car.
If James makes tea, then John is playing tennis can be inferred via the biconditional elimination rule. If Linda plays a game, then James is making tea can be inferred via the biconditional elimination rule. If Linda plays a game, then Joseph is driving a car can be inferred via the biconditional elimination rule. If John plays tennis, then James is making tea can be inferred via the biconditional elimination rule. If James makes tea, then Linda is playing a game can be inferred via the biconditional elimination rule. If Joseph drives a car, then Linda is playing a game can be inferred via the biconditional elimination rule. Linda is not playing a game can be inferred via the biconditional elimination rule.