𝔖 Bobbio Scriptorium
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A lemma on directed sets and chains

✍ Scribed by Günter Bruns


Book ID
112647645
Publisher
Springer
Year
1967
Tongue
English
Weight
130 KB
Volume
18
Category
Article
ISSN
0003-889X

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## A dual expression for the thickness of a family of sets is given. The thickness is a numerical characteristic of families of sets introduced in LeSanovsky and Ptak (1986). The dual expression is based on a simple combinatorial minimax result.