Марк Эйдельштейн привлек внимание иностранных журналистов на модном показе14:58
村民卢森说:“我们夫妻在工地上干活,工作送上门,一年能挣六七万!”
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就像回答“抛开钱不谈,工作的意义在哪里”这样的问题一样,抛开的净是一些抛不开的因素。落到肖弘身上,大概可以理解为:谁说商业和产品的壁垒,就不算壁垒了。
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.