Blue: Recent basketball semifinalists
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.
，这一点在体育直播中也有详细论述
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网传的说法之一是通义实验室的总负责人周靖人。