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Heiratstheorem
結婚定理   kekkon teiri
marriage theorem

Kommentar

Üblicherweise dem Mathematiker Philip Hall zugesprochener Lehrsatz.

In mathematics, the marriage theorem, usually credited to mathematician Philip Hall, is a combinatorial result that gives the condition allowing the selection of a distinct element from each of a collection of subsets.

Links

Wikipedia
http://en.wikipedia.org/wiki/Marriage_theorem
 

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