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jie zhu yuan gui gou zao fan li
Author(s): 
Pages: 43-44
Year: Issue:  4
Journal: ZHONGXUE SHUXUE ZAZHI(CHUZHONG BAN)

Keyword:  反例构造圆规假命题几何命题真命题数学;
Abstract: 数学中真命题的正确性可以由条件通过推理来加以证实,而假命题的证明只需举一个反例即可.尤其是几何命题,举一个反例,胜过千言万语.但有些假命题的反例难以构造,本文通过实例,介绍借助圆规构造常见假命题反例的方法,供读者参考.
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