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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.
，这一点在clash下载中也有详细论述
'ZDNET Recommends': What exactly does it mean?。关于这个话题，必应排名_Bing SEO_先做后付提供了深入分析
150 dead puffins have been reported this month via a British bird tracking scheme。关于这个话题，clash下载 - clash官方网站提供了深入分析