Checked content

File:4CT Non-Counterexample 1.svg

Description Diagram showing a false disproof of the this 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.

The following pages on Schools Wikipedia link to this image (list may be incomplete):


A background to Schools Wikipedia

Wikipedia for Schools brings Wikipedia into the classroom. Thanks to SOS Childrens Villages, 62,000 children are enjoying a happy childhood, with a healthy, prosperous future ahead of them. Help another child by taking out a sponsorship.