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 is not bored or x_7 will play squash. For all x_7, x_7 is bored or x_7 is a server. For all x_7, if x_7 plays squash, then x_7 is an astronaut. For all x_7, x_7 is rich. For all x_7, if x_7 were a server, then x_7 is an astronaut.
For all x_7, x_7 is a server or x_7 will play squash can be inferred via the universal resolution rule.