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.
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The roughness and reduction of incomplete information systems based on binary relation are studied.
主要内容如下:1.研究了基于一般二元关系信息系统的不确定性度量和知识约简.
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