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What is the meaning of the expression Q. E. D. ? Is it similar to . . . Putting QED after that sentence was their way of saying, "and that's what I was trying to prove, so there, I've proved it" We aren't so strict about proofs anymore, but as a practical matter it's very useful to have a definitive mark that indicates the proof is over Some authors use Q E D as that mark, some authors use the box
What are the advantages of ending a proof with “QED”? QED is short for the Latin phrase quod erat demonstrandum and means, loosely, "that which was to be shown" As noted in the comments, it's a summary way of saying that the proof is concluded
在写数学证明的过程中,有哪些可以提升逼格的词汇? - 知乎 这么好的问题,不能寂寥! 来,我们今天总结一下,下次做证明题怎么解放双手,不用再写复杂的汉字。也总结一下,如何一晚入门数学英文文献的阅读。 这里是一些常见数学略缩语及其含义: T B C (To Be Continued)待续,表示论文或书籍的内容将在后续部分展开。 P F (Proof)证明,用于引出或标记
什么是腔量子电动力学? - 知乎 Cavity QED是一种利用 微腔 研究光与物质之间相互作用的学科。在微腔中, 光子 的 量子性质 会显现出来,在这种极端量子的情况下会出现很多有趣的新物理。很多做冷原子的组也会顺便做一些Cavity QED 最后贴一个入门链接 physik uni-kl de filead 。
在数学高考证明题中写下Q. E. D. 可能被判标记卷吗? - 知乎 众所周知 Q E D 是quite easily done的缩写 挥挥洒洒地终结证明,不经意间注记quite easily done,大佬的高考,往往就是这么朴实无华,且枯燥 而阅卷老师只会在佩服之余,点下满分按钮
notation - Difference between $\square $ and $\blacksquare . . . I already wondered about it some time ago: What is the difference between black and white square in notation? Now I found in Mathematical Logic for Computer Science by Mordechai Ben-Ari that black square is used to indicate the end a proof and white square to indicate the end of an example definition That's just a convention, so it probably should be explained in the introduction to a
有没有什么数学证明用的术语的英文或拉丁文? - 知乎 其实吧,写英语并不一定比中文快多少。不过呢掌握一些基本的术语至少有有利于读书,我记得好像一前见过一本专门介绍这种术语的书,但是忘记名字了。列一些我知道的比较常见的拉丁语: a priori 先验的 以及与之相对的: a posteriori 后验的 a fortiori 这个不算数学术语吧,大概的意思是with the