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: There is at least one x for which if x were curious, then x is making tea. For all x, x is curious and x will sleep.
For all x, x is curious can be inferred via the universal simplification rule. For all x, x will sleep can be inferred via the universal simplification rule.