Simple closed figures are used to represent sets.These closed figures are first used in 1880 by John Venn an English Mathematician.These figures were also used by Leonard Euler (1707-1783) the great Swiss Mathematician.So these closed figures ar called Venn-Euler diagrams simply Venn Diagrams. * Sets main page * Sets introduction Definations | Maths EM * Types of Sets * Sets | Roster Form & Set builder form * Class 10 Maths EM Main page Share this:TwitterWhatsAppFacebookLike this:Like Loading...