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_11, x_11 will take a plane and x_11 is a scientist.
For all x_11, x_11 will take a plane can be inferred via the universal simplification rule. For all x_11, x_11 is a scientist can be inferred via the universal simplification rule.