A 2-element antichain that is not contained in any finite retract

被引：0
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作者：
Michał Kukieła
Bernd S. W. Schröder
机构：
[1] Nicolaus Copernicus University,Faculty of Mathematics and Computer Science
[2] Louisiana Tech University,Program of Mathematics and Statistics
来源：
Algebra universalis | 2012年 / 67卷
关键词：
Primary: 06A07; ordered set; retract; antichain;
D O I：
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中图分类号：
学科分类号：
摘要：
We give an example of an ordered set P which contains a 2-element antichain that is not contained in any finite retract of P.
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页码：59 / 62
页数：3
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