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墓碑 ∎(Tombstone)

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hbghlyj Posted at 2022-7-4 02:33:12 |Read mode
Wikipedia
In mathematics, the tombstone, halmos, end-of-proof, or Q.E.D. symbol "∎" is a symbol used to denote the end of a proof, in place of the traditional abbreviation "Q.E.D." for the Latin phrase "quod erat demonstrandum".

墓碑符号∎(tombstone),在数学中用来表示证明完毕,以取代传统上使用的拉丁文缩写Q.E.D.(意为“证明完毕”)。

该符号在Unicode中的代码为U+220E ∎ 。此外还有其他一些变体,可以是空心或实心的矩形或正方形。

它有时又被称为哈尔莫斯符(halmos),以最早将这一符号用于数学的数学家保罗·哈尔莫斯的名字命名。

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2025-4-21 01:12 GMT+8

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