摘要
对集合论中几个基本概念 :编序、全序、极大 (小 )元、大 (小 )元、上 (下 )界、上 (下 )确界等进行剖析 ,揭示其本质属性 ,明辨其异同 .
This article analyses deeply several basic concepts of the set theory: partial ordering, total ordering, maximal (minimal) element, greatest (least) element, upper (lower) bound, supremum (infimum) and etc, discovers their nature character,and their distinction from similarity.
出处
《沈阳师范学院学报（自然科学版）》
2000年第4期7-10,共4页
Journal of Shenyang Normal University(Natural Science)
关键词
集合论
偏序
全序
极大元
上界
极小元
下界
partial ordering
total ordering
maximal (minimal) element
upper(lower) bound
greatest (least) element
supremum (infimum)
