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单词 Asymmetrical relationship
释义

Asymmetrical relationship

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二元关系 Binary relation

(重定向自Asymmetrical relationship)

数学上,二元关系英语:Binary relation,或简称关系)用于讨论两种对象的连系。诸如算术中的「大于」及「等于」、几何学中的「相似」或集合论中的「为……之元素」、「为……之子集」。

英语百科

Binary relation 二元关系

(重定向自Asymmetrical relationship)
Example relations between real numbers. Red: y=x2. Green: y=2x+20.
ClasiBinaEs 002.svg

In mathematics, a binary relation on a set A is a collection of ordered pairs of elements of A. In other words, it is a subset of the Cartesian product A = A × A. More generally, a binary relation between two sets A and B is a subset of A × B. The terms correspondence, dyadic relation and 2-place relation are synonyms for binary relation.

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更新时间:2025/6/17 18:47:37