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HIERARCHY OF CENTRES: SOME NOTES ON A CONCEPT

✍ Scribed by TOM VAN DER MEULEN

Book ID
111020628
Publisher
John Wiley and Sons
Year
1979
Tongue
English
Weight
492 KB
Volume
70
Category
Article
ISSN
0040-747X

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Given a (finite or infinite) set X, a collection C P(X ) of subsets of X is called a hierarchy if it satisfies the condition ` '' In this note, we characterize maximal hierarchies as set systems that contain the empty set, the full set, and all one-element sets, and in addition satisfy either one of