Journal of Basic and Applied Research International

ON GEOMETRICAL METHODS THAT PROVIDE A SHORT PROOF OF FOUR COLOR THEOREM

BAHMAN MASHOOD *

Department of Mathematics, University of Saskatchewan, Saskatoon, Canada.

*Author to whom correspondence should be addressed.

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Abstract

In this article we introduce a short and comprehensive proof of four color theorem based on geometrical methods. At the end of the article we will provide a short proof of the De Bruijn Erdos theorem for locally finite infinite graphs.

Keywords: Adverse, reporting workers, Nnwi

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