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File:4CT Non-Counterexample 2.svg

Description Diagram showing a refutation of a false disproof of the four Colour Theorem.
Date 16 February 2007
Source Based on a this raster image by Dmharvey on en.wikipedia.
Author Inductiveload
( Reusing this file)
Public domain This work has been released into the public domain by its author, Dmharvey. This applies worldwide.
In some countries this may not be legally possible; if so:
Dmharvey grants anyone the right to use this work for any purpose, without any conditions, unless such conditions are required by law.

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