| 数集确界的性质 |
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| 引用本文： | 毛一波.数集确界的性质[J].渝西学院学报(自然科学版),2008(1):52-53. |
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| 作者姓名： | 毛一波 |
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| 作者单位： | 重庆文理学院数学与计算机科学系,重庆永川402160 |
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| 基金项目： | 重庆市教委科学技术研究项目（KJ051203）;重庆文理学院科研基金资助项目（Y2006SJ84）. |
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| 摘 要： | 引入了数集的四则运算，研究了数集四则运算后集合确界的性质．
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| 关 键 词： | 四则运算 集合 确界 性质 |
Properties of Number Sets＇ Supremum and Infimum |
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| Institution: | MAO Yi - bo ( Dept. of Math and Computer Science, Chongqing University of Arts and Sciences, Yongchuan Chongqing 402160, China) |
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| Abstract: | This paper introduced four arithmetic operations of number sets. The four arithmetic operations properties of supremum and infimum of number sets are inverstigated. |
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| Keywords: | four arithmetic operations sets Supremum and Infimum properties |
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