摘要
根据导集的性质以及闭包运算的定义,得到导集运算的定义.又类似于从闭包运算出发建立拓扑空间,从而得到了从导集运算出发建立的拓扑空间.
The definition of derived set calculation can be obtained according to the closure of set and the characteristics of derived set. Similar to the building of topological spaces through the calculation of a closure of set, the topological spaces can also be built through the derived set calculation.
关键词
导集
拓扑空间
闭包
derived set
topological spaces
closure
