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, if x_14 reads a book, then x_14 is rich. For all x_14, if x_14 climbs a mountain, then x_14 is a server. For all x_14, if x_14 were rich, then x_14 is climbing a mountain. For all x_14, x_14 will climb a mountain or x_14 will not play tennis. There is at least one x_14 for which x_14 will play tennis or x_14 will read a book.
For all x_14, if x_14 reads a book, then x_14 is climbing a mountain can be inferred via the universal transitivity rule. For all x_14, if x_14 were rich, then x_14 is a server can be inferred via the universal transitivity rule. For all x_14, if x_14 plays tennis, then x_14 is climbing a mountain can be inferred via the universal rewriting rule.