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: For all x_7, x_7 will drive a car if and only if x_7 will make tea. For all x_7, if x_7 drives a car, then x_7 is making tea.
For all x_7, if x_7 drives a car, then x_7 is making tea can be inferred via the universal biconditional elimination rule. For all x_7, if x_7 makes tea, then x_7 is driving a car can be inferred via the universal biconditional elimination rule.