则R称为是X上的 1°自反关系(reflexive relation)：当且仅当R满足 自反性：(xX)(xRx) ； 显然，对于自反关系R，(R) = (R) = X 。
基于3000个网页-相关网页
totally reflexive relation 完全自反关系
anti-reflexive relation [数] 非自反关系
weakly reflexive relation 弱自反关系
non-reflexive relation 非自反关系
reflexive binary relation 自反二元关系
reflexive e relation 自反关系
reflexive fuzzy relation 反射模糊关系 ; 自反模糊关系
Clearly this relation is reflexive 显然这个关系是自反的
以上来源于: WordNet
A reflexive relation that is also transitive is a preorder.
满足传递性的自反关系称为预序关系。
A synonym relation is reflexive, however, because every term is also a synonym of itself.
然而因为每个术语同时也是自己的同义词，同义词关系是反射性的。
Matrix to determine whether it is reflexive and symmetric, Discrete Mathematics in the binary relation.
判断矩阵是否是自反的，对称的，离散数学中的二元关系。
应用推荐