poset height and width
Let be a poset. Then the width of is the cardinality of a largest (maximum cardinality) antichain in and the height of is the cardinality of a longest (maximum cardinality) chain in .
数学辞典收录了18232条数学词条,基本涵盖了常用数学知识及数学英语单词词组的翻译及用法,是数学学习的有利工具。