英语词汇“proper subset”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典

单词	proper subset
释义	DictionarySeesubset proper subset proper subset [′präp·ər ′səb‚set] (mathematics) A set X is a proper subset of a set Y if there is an element of Y which is not in X while X is a subset of Y.
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