It sounds like there is enough material among us all to perhaps pull
it together in a single book. If anyone would like to work on pulling
something like that together...

BTW, Is the four-color theorem still one that has only been proven "by
computer" or is there now an elegant mathematical proof too?   --dawn

On 5/11/07, Anthony W. Youngman <[EMAIL PROTECTED]> wrote:
In message <[EMAIL PROTECTED]>, Charles Barouch
<[EMAIL PROTECTED]> writes
>Gabriel,
>  I am currently writing an MV book and editing another. The first will
>be distributed free as a PDF and the second will be a college text
>book. We already have one College committed to using it bt I can't say
>more at this time.

I ought to rewrite my stuff about MV. What I'll try and do is write a
"Why MV" article. I've found a nice little Einstein quote - "As far as
the laws of mathematics refer to reality, they are not certain; and as
far as they are certain, they do not refer to reality." And there's
always Knuth - "Beware of bugs, I have only proved this program correct,
not tested it".

You know my complaint about Relational is maths not science ... :-) I
need to word that in simple words that a novice can understand, and then
we might break the relational death-grip :-)

I've got a new analogy to replace Newton :-) You know that map problem?
How many colours it takes to guarantee no two adjacent regions share a
colour? Well, it's easy to prove that seven colours are both necessary
and sufficient ...

Hang on!!! EASY? And SEVEN? Well, it is. Provided you choose a
convenient reality to do it in. Just don't choose a two-dimensional
reality to do it in. Bit like database analysis, really. It's easy, if
you don't choose a two-dimensional reality to do it in :-)

Cheers,
Wol
--
Anthony W. Youngman <[EMAIL PROTECTED]>
'Yings, yow graley yin! Suz ae rikt dheu,' said the blue man, taking the
thimble. 'What *is* he?' said Magrat. 'They're gnomes,' said Nanny. The man
lowered the thimble. 'Pictsies!' Carpe Jugulum, Terry Pratchett 1998
Visit the MaVerick web-site - <http://www.maverick-dbms.org> Open Source Pick
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--
Dawn M. Wolthuis
Tincat Group, Inc.  tincat-group.com

Take and give some delight today
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