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_5, x_5 will play tennis. For all x_5, if x_5 were curious, then x_5 is a soldier. For all x_5, if x_5 plays tennis, then x_5 is curious.
For all x_5, x_5 is curious can be inferred via the universal modus ponens rule. For all x_5, if x_5 plays tennis, then x_5 is a soldier can be inferred via the universal transitivity rule.