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 is an office clerk. For all x_5, x_5 is a musician.
For all x_5, x_5 is an office clerk and x_5 is a musician can be inferred via the universal conjunction rule. For all x_5, x_5 is a musician and x_5 is an office clerk can be inferred via the universal conjunction rule.