# A Lebesgue measurable set which is not Borel measurable (Lusin) [closed]

I am told that by means of continued fractions, Lusin or somebody else, has constructed examples of Lebesque measurable sets which are not Borel measurable. Please, if you know a reference help me.

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MathOverflow is for research-level questions only, see the FAQ: mathoverflow.net/faq#whatnot. Here is a thread on Math Stack Exchange where this topic is addressed: math.stackexchange.com/q/141017/264 –  Zev Chonoles Jun 13 '12 at 14:14
@jorge: Google search gives lot of good results. Here is one which I liked: unapologetic.wordpress.com/2010/04/24/… –  Chandrasekhar Jun 13 '12 at 15:09
@Chandra: But that is not what he is asking for... –  Gerald Edgar Jun 13 '12 at 15:38