摘要
从"两个不相交的闭集间的距离可为零"出发,采用逆向思维,得到一些新的结论和解题方法,从而为探讨实际问题提供了新的解决方法.
<Abstrcat> Based on the fait accompli that the distance between two non-intersect closed sets is zero, this paper draws several new conclusions and ways in mathematics with reversing thought. Then, the paper offers a new way for solving practical problems.
出处
《黄冈师范学院学报》
2005年第3期7-8,共2页
Journal of Huanggang Normal University
基金
湖北省教育厅重点科研项目(03BC82).
关键词
距离
有界闭集
开邻域
覆盖
开集
distance
bounded closed set
open adjacent region
covering
open set
