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KHashmi317

A Colorful Unsolved Problem - Numberphile

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Hi Khurram!

The graph coloring problem is an old problem -- it was solved a few decades ago, using a lot of computer work -- the old conjecture that you need only 4 colors was finally proven -- with a lot of computer work.

Aubrey is considering a modification -- add the restriction that all lines in the planar graph are lenght one.  Then, he purports to show that you need at least 5 colors.

  😇

    --  Saul

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