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Journal Article

Shorter Notes: A Short Proof of Mac Lane's Planarity Theorem

P. V. O'Neil
Proceedings of the American Mathematical Society
Vol. 37, No. 2 (Feb., 1973), pp. 617-618
DOI: 10.2307/2039496
Stable URL: http://www.jstor.org/stable/2039496
Page Count: 2

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Topics: Mathematical theorems, Topological theorems
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Abstract

This note gives a short and elementary proof of Mac Lane's theorem on the embedding of graphs in a 2-sphere.

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