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st: RE: status of upgraded venndiag

From   "Nick Cox" <>
To   <>
Subject   st: RE: status of upgraded venndiag
Date   Wed, 1 Apr 2009 10:59:39 +0100

The history of so-called Venn diagrams before and after Venn is well
surveyed by Anthony Edwards in his book "Cogwheels of the mind".



By the way, quite interesting that the Venn diagrams stems from logic 
published by Venn around 1850.


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