An Infinite Antichain of Permutations

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We constructively prove that the partially ordered set of finite permutations ordered by deletion of entries contains an infinite antichain.

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Combinatorics, 06A07

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http://salesiana.dossiersoluciones.com/handle/123456789/77837

Consulte el texto completo en el siguiente enlace:

https://arxiv.org/abs/math/9812073
 http://arxiv.org/abs/math/9812073

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arXiv