where is the measure of the set of points on the x-axis for which .
Lebesgue Sum
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Cite this as:
Weisstein, Eric W. "Lebesgue Sum." From MathWorld--A Wolfram Web Resource. https://mathworld.wolfram.com/LebesgueSum.html
Weisstein, Eric W. "Lebesgue Sum." From MathWorld--A Wolfram Web Resource. https://mathworld.wolfram.com/LebesgueSum.html