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_2, x_2 is rich and x_2 will read a book.
For all x_2, x_2 is rich can be inferred via the universal simplification rule. For all x_2, x_2 will read a book can be inferred via the universal simplification rule.