The purpose of this paper is to give a new proof of the following Lusin's theorem: Théorème: If f(x) is a measurable function defined on the interval I: 0 ≤ x ≤ 1, then for every ϵ > 0 there is a set A ⊂ I such that f(x) is continuous on A and m(I-A) < ϵ.
@article{bwmeta1.element.bwnjournal-article-fmv9i1p12bwm,
author = {Leon Cohen},
title = {A new proof of Lusin's theorem},
journal = {Fundamenta Mathematicae},
volume = {10},
year = {1927},
pages = {122-123},
zbl = {53.0242.03},
language = {en},
url = {http://dml.mathdoc.fr/item/bwmeta1.element.bwnjournal-article-fmv9i1p12bwm}
}
Cohen, Leon. A new proof of Lusin's theorem. Fundamenta Mathematicae, Tome 10 (1927) pp. 122-123. http://gdmltest.u-ga.fr/item/bwmeta1.element.bwnjournal-article-fmv9i1p12bwm/