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.
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，这一点在PDF资料中也有详细论述
因救助方的过失未能防止或者减少生态环境损害的，可以全部或者部分剥夺救助方获得特别补偿的权利。
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