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Negligible Set
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High Quality Content by WIKIPEDIA articles!In mathematics, a negligible set is a set that is small enough that it can be ignored for some purpose. As common examples, finite sets can be ignored when studying the limit of a sequence, and null sets can be ignored when studying the integral of a measurable function. Negligible sets define several useful concepts that can be applied in various situations, such as truth almost everywhere. In order for these to work, it is generally only necessary that the negligible sets form an ideal; that is, that the empty set be negligible, the union of two negligible sets be negligible, and any subset of a negligible set be negligible. For some purposes, we also need this ideal to be a sigma-ideal, so that countable unions of negligible sets are also negligible. If I and J are both ideals of subsets of the same set X, then one may speak of 'I-negligible and 'J-negligible subsets.
Weitere Informationen
- Allgemeine Informationen
- GTIN 09786131117459
- Editor Lambert M. Surhone, Miriam T. Timpledon, Susan F. Marseken
- EAN 9786131117459
- Format Fachbuch
- Titel Negligible Set
- Herausgeber Betascript Publishing
- Anzahl Seiten 64
- Genre Mathematik
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