中心对称图形的深入讨论以及对“负零”的再理解

Discussion on the Central Symmetric Figure and the Rethinking of "Negative Zero"

文章前半部分通过层层深入,得到了关于中心对称图形的一个结果(定理1),在解决问题过程中获得的引理1和引理2的结论与证明也是很有意义的。文中后半部分利用近世代数作为工具,对“负零”进行再理解,证明了“负零表示零的相反数,负零等于零”确实是真命题(定理3)。

In the first half of this paper,a result about the central symmetric figure is obtained step by step(Theorem 1).The conclusion and proof of Lemma 1 and Lemma 2 obtained in the process of solving the problem are also very meaningful.In the latter part,modern algebra is used as a tool to rethink"negative zero",and it is proved that"negative zero represents the opposite number of zero,and negative zero equals zero"is true proposition(Theorem 3).