Let me quickly remind you as to the problem and then I'll regale you with the answer. Consider the first group of diagrams below. At the top we have a classic Venn representation. The rectangle is the ...

Description: A Venn diagram captioned: "In a survey of 250 European travelers, 93 have traveled to Africa, 155 have traveled to Asia, and 70 have traveled to both of these continents, as illustrated ...

British mathematician John Venn was born on August 4, 1834, so this Saturday marks the 184th anniversary of his birth in Hull, England. John Venn is most known for creating and introducing the ...