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Talk:Measurable space

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I am afraid, this page is rather obsolete. Nowadays it should be a σ-algebra. If you mean rather a ring etc., then you have to make a reservation. Any objections? I'll wait some days, and if no one will object, I'll change the article accordingly. --Boris Tsirelson 16:38, 1 December 2011 (CET)

In fact, the article is also erroneous. A σ-ring (according to the cited book by Halmos, see page 24) is closed under the formation of countable unions. Therefore the (measurable) sets of finite Lebesgue measure are not a σ-ring. --Boris Tsirelson 18:28, 20 December 2011 (CET)

Well, I got bold, and rewrote this short article. --Boris Tsirelson 19:02, 20 December 2011 (CET)

How to Cite This Entry:
Measurable space. Encyclopedia of Mathematics. URL: http://encyclopediaofmath.org/index.php?title=Measurable_space&oldid=19852