Venn diagram

== English == === Etymology === Named after British mathematician and philosopher John Venn (1834–1923). === Pronunciation === IPA(key): /ˈvɛn ˌdaɪəɡɹæm/, /ˈvɛn ˌdaɪɡɹæm/ === Noun === Venn diagram (plural Venn diagrams) (set theory) A diagram representing some sets by contours of closed shapes, such as circles or ellipses (and sometimes also the universal set as a rectangle enclosing all of these shapes), and indicating the relationships between the sets: by overlapping the shapes to show that the corresponding sets have a non-empty intersection, and by possibly (but not necessarily) enclosing all of the sets (which are proper subsets of the universal set) within a universal set (represented typically by a rectangle); such that the total number of simply connected regions is 2 n {\displaystyle 2^{n}} , where n is the number of depicted sets which are proper subsets of the universal set. (by extension) The intersection of two or more things. ==== Hypernyms ==== diagram ==== Translations ==== === See also === Euler diagram logic diagram === Further reading === Venn diagram on Wikipedia.Wikipedia