Venn diagrams are used to sort sets of data. The probability of an event not happening uses the complement of the region on the Venn diagram. Count the number of elements in each region. Redraw ...

Other major works of Venn’s include probability theory and symbolic logic. Venn had initially used diagrams developed by the Swiss mathematician Leonard Euler to show some relationships between sets, ...

British mathematician John Venn (pictured above, click to enlarge) was born on August 4, 1834, so tomorrow will mark the 187th anniversary of his birth in Hull, England. John Venn is most known ...

John Venn: The man behind the famous diagrams – and why his work still matters today One of Venn’s major achievements was to find a way to visualise a mathematical area called set theory.