Four Colors Suffice: How the Map Problem Was Solved
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|Robin Wilson; Princeton University Press|
|"On October 23, 1852, Professor Augustus De Morgan wrote a letter to a colleague, unaware that he was launching one of the most famous mathematical conundrums in history--one that would confound thousands of puzzlers for more than a century. This is the amazing story of how the 'map problem' was solved." The first chapter is available online in PDF format.|
|Levels:||High School (9-12), College|
|Math Topics:||Discrete Math, Graph Theory|
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