𝔖 Bobbio Scriptorium
✦   LIBER   ✦

The Gergonne relations and the intuitive use of Euler and Venn diagrams

✍ Scribed by GRATTAN‐GUINNESS, I.


Book ID
120241758
Publisher
Taylor and Francis Group
Year
1977
Tongue
English
Weight
495 KB
Volume
8
Category
Article
ISSN
0020-739X

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We introduce two new notions of planarity for hypergraphs based on dual generalizations of the standard Venn diagram. These definitions are illustrated by results concerning the existence and nonexistence of such diagrams for certain classes of hypergraphs. We conclude by showing that the general pr