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Re: [ontolog-forum] PROF Swartz ON DEFINITIONS

To: "[ontolog-forum]" <ontolog-forum@xxxxxxxxxxxxxxxx>
From: Patrick Durusau <patrick@xxxxxxxxxxx>
Date: Wed, 22 Sep 2010 17:04:19 -0400
Message-id: <1285189459.1472.132.camel@xxxxxxxxxxxxxxxxx>
John,    (01)

On Wed, 2010-09-22 at 12:19 -0400, John F. Sowa wrote:
> On 9/22/2010 10:56 AM, Alex Shkotin wrote:
> >     (02)

<snip>    (03)

> Those misguided mathematicians who tried to eliminate all diagrams
> from mathematics were philosophically confused and pedagogically
> disastrous.  One of the worst offenders was Dieudonné, who was
> a hypocrite.
> 
> He wrote a textbook on geometry that did not contain a single
> diagram.  But in one of his lectures, he got stuck in the middle
> of a proof.  He went to the side of the blackboard, drew a
> diagram (which he kept hidden from the audience), erased the
> diagram, and continued the proof.
>     (04)

Isn't the turning to the blackboard episode been attributed to several
people?    (05)

I first heard a similar story about Norbert Weiner.
http://en.wikiquote.org/wiki/Norbert_Wiener    (06)

(look for Recollections of a Chinese Physicist by C.K. Jen (1990))    (07)

Of course, it may have been a practice of time. ;-)    (08)

Hope you are having a great day!    (09)

Patrick    (010)


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