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 y, if y were an astronaut, then y is bored. For all y, if y were an office clerk, then y is an astronaut. For all y, if y were bored, then y is an office clerk.
For all y, if y were an astronaut, then y is an office clerk can be inferred via the universal transitivity rule. For all y, if y were an office clerk, then y is bored can be inferred via the universal transitivity rule. For all y, if y were bored, then y is an astronaut can be inferred via the universal transitivity rule.