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_6, x_6 will work or x_6 is not a nurse. For all x_6, x_6 is a nurse.
For all x_6, if x_6 were a nurse, then x_6 is working can be inferred via the universal rewriting rule.