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翻訳と辞書　辞書検索 [ 開発暫定版 ] スポンサード リンク reflexive closure ： ウィキペディア英語版 reflexive closure In mathematics, the reflexive closure of a binary relation ''R'' on a set ''X'' is the smallest reflexive relation on ''X'' that contains ''R''. For example, if ''X'' is a set of distinct numbers and ''x R y'' means "''x'' is less than ''y''", then the reflexive closure of ''R'' is the relation "''x'' is less than or equal to ''y''". == Definition == The reflexive closure ''S'' of a relation ''R'' on a set ''X'' is given by :$S\; =\; R\; \backslash cup\; \backslash left\backslash$ In words, the reflexive closure of ''R'' is the union of ''R'' with the identity relation on ''X''. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「reflexive closure」の詳細全文を読む スポンサード リンク 翻訳と辞書 : 翻訳のためのインターネットリソース Copyright(C) kotoba.ne.jp 1997-2016. All Rights Reserved.