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_9, if x_9 were a musician, then x_9 is drinking water. For all x_9, x_9 is poor or x_9 will play squash. For all x_9, if x_9 goes running, then x_9 is drinking water. For all x_9, x_9 is not poor. For all x_9, x_9 will go running.
For all x_9, x_9 will drink water can be inferred via the universal modus ponens rule. For all x_9, x_9 will play squash can be inferred via the universal disjunctive syllogism rule.