[r-t] pure triples

Alexander Holroyd holroyd at math.ubc.ca
Thu Oct 12 16:45:30 UTC 2006

What is the simplest extent of pure triples?

Obviously the meaning of "simplest" is subjective, but what I am driving 
at is that the construction should be straightforward, and should not 
require an extensive computer or hand search, and it should be 
self-evident that it works.

Also, how many fundamentally different extents of pure triples are 
popularly known?  Not many it would seem...


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