Math 2.0

Combinatorics Basic counting Concept

Permutation

Summary

A permutation of a set is a rearrangement of its elements, that is, a bijection from the set to itself. Permutations are the basic objects of enumerative combinatorics and of the theory of symmetric groups. The node permutation gives the precise definition.

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Further reading

  1. Web https://en.wikipedia.org/wiki/Permutation, Definition
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