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Originally Posted by jfribrg
Basically that [when you have four countries that all touch each other, one of those contries has to be completely surrounded.] is the key, but proving it is the problem.
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I proved it 34 years ago in high school with pencil and paper before anyone had computers. I've since given talks on why the current attempts to solve the problem are not trying to solve the problem, but rather trying to rename it. I've also taken the obligatory cheap shots at computers used in a supposed proof. An image of the proof is the only tatoo that I've ever considered getter, but I chickened out.
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Originally Posted by BenM
I spent an entire summer as a kid trying to draw maps that would disprove the theorem. It wasn't a complete waste of time, because it did get me started down the path of scientific inquiry.
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Yep. That how I started too.
David Madison
Maddad@Hotmail.com?Subject=FourColorMapTheorem