Re: JSH: Claim simplified



I'm just going to use this as a pointer;
thanks!

thus:
I was going to say that the "map, below," was 3-colorable, but
the formatting became clear upon clicking for replying.  anyway,
that is also the "neccesity" part of the 4-color proof,
a.k.a. "the tetrahedron, q.e.d." on a sphere
(more or less; your further result is the same,
as coloring/labelling the surrounding space .-)

- Hide quoted text -

> Please explain how a map demanding 5 colors can demand 5 colors without
> having 5 countries bordering each other?   Anything except the specious
> argument about a 4-color graph not requiring 4 mutually adjacent
> countries!   Consider the simple map below
>       ----------------------------------------
>      |                  A                    |
>      |----------------------------------------|
>      |             |           |               |
>      |      B     |   C     |       D      |
>      |             |______|               |
>      |__________ |___________ |

>  If the analogy were valid, you could add country E between B & D, just
> below C and get a 5-color map .  And there are no 5 countries bordering
> each other.

> But the analogy is not valid.  Adding E actually makes the map 3-C.

>      ------------------------------------------
>      |                  A                    |
>      |----------------------------------------|
>      |             |           |               |
>      |      B     |   C     |       D      |
>      |             |______|               |
>      |_______ |__E__|_________|

--Give Earth a Trickier *** Cheeny -- out of office, after gigayears!
http://larouchepub.com/other/2003/3045dems_dive_soros.html
http://tarpley.net/bush8.htm
http://www.benfranklinbooks.com/
http://members.tripod.com/~american_almanac
http://www.wlym.com/pdf/iclc/howthenation.pdf
http://larouchepub.com/other/2003/3048iraq_58_const.html
http://www.rand.org/publications/randreview/issues/rr.12.00/
http://www.rwgrayprojects.com/synergetics/plates/figs/plate01.html

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