st: RE: status of upgraded venndiag

["Nick Cox" <n.j.cox@durham.ac.uk>]

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

press.jhu.edu/books/title_pages/3270.html

Nick 
n.j.cox@durham.ac.uk 

<snip>

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

<snip> 


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