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John Venn Day

Submitted by Richard Zach on Mon, 08/04/2014 - 2:21am

John Venn would have been 180 today (August 4). In celebration, Google put up an interactive Venn Diagram doodle, which is pretty amazing.

Also, TIL that it's not a Venn diagram if it doesn't contain all possible intersections, a restriction that doesn't apply to Euler diagrams.  So representing an empty intersection by two non-intersecting regions is, technically, not a Venn diagram; and Venn diagrams for more than three sets get harder and harder to draw. Check out the informative Wikipedia entry.

I have a previous entry on humorous Venn (and Euler) diagrams around the Internets.


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