【directed_set】什么意思_英语directed_set的翻译_音标_读音_用法_例句_在线翻译

abstract: In mathematics, a directed set (or a directed preorder or a filtered set) is a nonempty set A together with a reflexive and transitive binary relation ≤ (that is, a preorder), with the additional property that every pair of elements has an upper bound:Kelley, p. 65.

以上来源于: WordNet

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directed set