منابع مشابه
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The collection of branches (maximal linearly ordered sets of nodes) of the tree ω (ordered by inclusion) forms an almost disjoint family (of sets of nodes). This family is not maximal – for example, any level of the tree is almost disjoint from all of the branches. How many sets must be added to the family of branches to make it maximal? This question leads to a series of definitions and result...
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ژورنال
عنوان ژورنال: Journal of Logic and Analysis
سال: 2021
ISSN: 1759-9008
DOI: 10.4115/jla.2021.13.4