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conull set In measure theory, a conull set is a set whose complement is null, i.e., the measure of the complement is zero.〔.〕 For example, the set of irrational numbers is a conull subset of the real line with Lebesgue measure.〔A related but slightly more complex example is given by Führ, p. 143.〕 A property that is true of the elements of a conull set is said to be true almost everywhere.〔. See (p. 62 ) for an example of this usage.〕 ==References==
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「conull set」の詳細全文を読む
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