Through study on Rernel operation nature of duality relation, the definition of quotient set for every duality relation was presented.
通过对二元关系核运算性质的研究，定义出任何一个二元关系的商集。
Through study on Rernel operation nature of duality relation, the definition of quotient set for every duality relation was presented.
通过对二元关系核运算性质的研究，定义出任何一个二元关系的商集。
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