Japan’s largest platform for academic e-journals: J-STAGE is a full text database for reviewed academic papers published by Japanese societies. 15 – – que la partition par T3 engendre une coupure continue entre deux parties L’isomorphisme entre les théories des coupures d’Eudoxe et de Dedekind ne. and Repetition Deleuze defines ‘limit’ as a ‘genuine cut [coupure]’ ‘in the sense of Dedekind’ (DR /). Dedekind, ‘Continuity and Irrational Numbers’, p.

Author: Faura Yojas
Country: Finland
Language: English (Spanish)
Genre: Marketing
Published (Last): 2 September 2006
Pages: 186
PDF File Size: 15.64 Mb
ePub File Size: 4.56 Mb
ISBN: 678-9-94694-934-6
Downloads: 28642
Price: Free* [*Free Regsitration Required]
Uploader: Dourn

Dedekind cut

From Wikipedia, the free encyclopedia. By using this site, you agree to the Terms of Use and Privacy Policy. Views View Edit History. All those whose square is less than two redand those whose square is equal to or greater than two blue. A similar construction to that used by Dedekind cuts was used in Euclid’s Elements book V, definition 5 to define proportional segments. Whenever, then, we have to do with a cut produced by no rational number, we create a new irrational number, which we regard as completely defined by this cut The set of all Dedekind cuts is itself a linearly ordered set of sets.

This file contains additional information such as Exif metadata which may have been added by the digital camera, scanner, or software program used to create or digitize it.

The following other wikis use this file: If the file has been modified from its original state, some details such as the timestamp may not fully reflect those of the original file. Summary [ edit ] Description Dedekind cut- square root of two.


KUNUGUI : Sur une Généralisation de la Coupure de Dedekind

By using this site, you agree to the Terms of Use and Privacy Policy. The timestamp is only as accurate as the clock in the camera, and it may coupur completely wrong.

Retrieved from ” https: This page was last edited on 28 Novemberat An irrational cut is equated to an irrational number which is in neither set. In other words, the number line where every real number is defined as a Dedekind cut of rationals is a complete continuum without any further gaps. Unsourced material may be challenged and removed.

I grant anyone the right to use this work for any purposewithout any conditions, unless such conditions are required by law. The Dedekind-MacNeille completion is the smallest complete lattice with S embedded in it. Please help improve this article by adding citations to reliable sources.

March Learn how and when to remove this template message.

Richard Dedekind Square root of 2 Mathematical diagrams Real number line. To establish this truly, one must show that this really is a cut and that it is the square root of two.

File:Dedekind cut- square root of two.png

Contains information outside the scope of the article Please help improve this article if you can. The specific problem is: Order theory Rational numbers. In this way, set inclusion can be used to represent the ordering of numbers, and all other relations greater thanless than dedekins equal toequal toand so on can be similarly created from set relations.


Retrieved from ” https: The set B may or may not have a smallest element among the rationals. A related completion that preserves all existing sups and infs of S is obtained by the following construction: It is straightforward to show that a Dedekind cut among the real numbers is uniquely defined by the corresponding cut among the rational numbers.

For each subset A of Slet A u denote the set of upper bounds coupurd Aand let A l denote the set of lower bounds of A.

Articles needing additional references from March All articles needing additional references Articles needing cleanup from June All pages needing cleanup Cleanup tagged articles with a reason field from June Wikipedia pages needing cleanup from June Every real number, rational or not, is equated to one and only one cut of rationals.