unbounded functions that are Lebesgue integrable?

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- March 13th 2009, 01:32 PMmanjohn12Are there any examples of...
unbounded functions that are Lebesgue integrable?

- March 14th 2009, 03:06 AMOpalg
Yes, for example on (0,1).

[If you want a proof that f is Lebesgue integrable, let Note that each f_n is integrable (with integral 2 – (1/n)) and that (f_n) increases to f, and use the monotone convergence theorem.]