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  Discussion about math, puzzles, games and fun.   Useful symbols: √ ∞ ≠ ≤ ≥ ≈ ⇒ ∈ Δ θ ∴ ∑ ∫ π -

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#1 2009-12-06 15:38:42

MathsIsFun
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The 1717 challenge


"The physicists defer only to mathematicians, and the mathematicians defer only to God ..."  - Leon M. Lederman
 

#2 2009-12-06 17:19:33

bobbym
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Re: The 1717 challenge

Hi MathsIsFun;

Gasarch wrote:

I REALLY REALLY THINK THAT IT IS 4-COLORABLE.

That is one tough problem. In opposition to Gasarch my feeling is that it is not 4 colorable.


In mathematics, you don't understand things. You just get used to them.
I have the result, but I do not yet know how to get it.
All physicists, and a good many quite respectable mathematicians are contemptuous about proof.
 

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