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_14, x_14 will not read a book or x_14 will play tennis. For all x_14, x_14 will sleep if and only if x_14 is fast. For all x_14, x_14 will read a book or x_14 will drive a car. For all x_14, x_14 will not sleep. For all x_14, if x_14 drives a car, then x_14 is fast.
For all x_14, x_14 will drive a car or x_14 will play tennis can be inferred via the universal resolution rule. For all x_14, if x_14 sleeps, then x_14 is fast can be inferred via the universal biconditional elimination rule. For all x_14, if x_14 were fast, then x_14 is sleeping can be inferred via the universal biconditional elimination rule. For all x_14, x_14 is not fast can be inferred via the universal biconditional elimination rule.