# Real Analysis : Lebesgue Integral Problem

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Let f be a nonnegative measurable function. Show that (integral f = 0) implies f = 0 a.e.

See attached document for notations.

Please help: This problem is from Royden's Chap 4 text on Lebesgue Integral.

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#### Solution Summary

A Lebesgue integral is investigated.

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