it just works. no special machinery needed. the boolean operators distribute over derivatives the same way union does. derivatives are such a powerful and interesting tool that i will dedicate a separate post to them, but the main point is that they give us a simple and uniform way to handle all regular language features, including intersection and complement.
第二条 在中华人民共和国领域及管辖的其他海域设立自然保护区、开展自然保护区保护和管理及相关活动，适用本条例。，更多细节参见PDF资料
PIXELS_CHECKPOINT_DATASET_PREFIX。业内人士推荐PDF资料作为进阶阅读
Названа самая вредная для здоровья кишечника категория продуктов14:47，更多细节参见PDF资料