Fubini Principle

If the average number of envelopes per pigeonhole is , then some pigeonhole will have at least envelopes. Similarly, there must be a pigeonhole with at most envelopes.

See also

Dirichlet's Box Principle

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Cite this as:

Weisstein, Eric W. "Fubini Principle." From MathWorld--A Wolfram Web Resource. https://mathworld.wolfram.com/FubiniPrinciple.html

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