John Venn (born Hull,Yorkshire, August 4, 1834 - died Cambridge, April 4, 1923), was a British logician and philosopher, who is famous for conceiving the Venn diagrams, which are used in many fields, including set theory, probability, logic, statistics, and computer science. John Venn's mother, Martha Sykes, came from Swanland near Hull, Yorkshire and died while John was still quite young. His father was the Rev Henry Venn who, … Wikipedia
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