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Double counting (proof technique): Combinatorics, Combinatorial proof, Set (mathematics), Vandermondes identity, Square pyramidal number, Lubell-Yamamoto-Meshalkin inequality -

English
2026-03-16
€133.57 €166.96

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In combinatorics, double counting, also called counting in two ways, is a combinatorial proof technique that involves counting the size of a set in two ways in order to show that the two resulting expressions for the size of the set are equal. In this technique, which van Lint & Wilson (2001) call "one of the most important tools in combinatorics," one describes a finite set X from two perspectives leading ... Full description

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Description

In combinatorics, double counting, also called counting in two ways, is a combinatorial proof technique that involves counting the size of a set in two ways in order to show that the two resulting expressions for the size of the set are equal. In this technique, which van Lint & Wilson (2001) call "one of the most important tools in combinatorics," one describes a finite set X from two perspectives leading to two distinct expressions for the size of the set. Since both expressions equal the size of the same set, they equal each other.

More Information

Publisher OmniScriptum
Release year 2026
Cover type Softcover
EAN 9786130646837
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€133.57 €166.96