“derived set”的概念、定义、翻译、参考文献-科学参考

单词	derived set
释义	derived set Mathematics For a subset A of a metric space or a topological space X, the derived set of A, denoted A′, is the set of limit points of A. Then $\bar{A} = A \cup A'$ , where $\bar{A}$ denotes the closure of A.
随便看	contraposition contrapositive contrapositive((of a conditional, P → Q)) contrary contrary-to-duty obligation contrary-to-fact conditional contrast contrast autofocus system contrast enhancement contrast ratio contrasts contrast stretching contravariant functor contravariant tensor contributory pension scheme control control bus control character control chart control charts control circuitry Control Commissions Control Data Corporation control design control electrode

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