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_9, x_9 will drive a car. For all x_9, x_9 is a sailor or x_9 will not drive a car. For all x_9, x_9 is an electrician.
For all x_9, x_9 will drive a car and x_9 is an electrician can be inferred via the universal conjunction rule. For all x_9, x_9 is an electrician and x_9 will drive a car can be inferred via the universal conjunction rule. For all x_9, if x_9 drives a car, then x_9 is a sailor can be inferred via the universal rewriting rule.