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  2. Venn diagram - Wikipedia

    en.wikipedia.org/wiki/Venn_diagram

    A Venn diagram, also called a set diagram or logic diagram, shows all possible logical relations between a finite collection of different sets. These diagrams depict elements as points in the plane, and sets as regions inside closed curves. A Venn diagram consists of multiple overlapping closed curves, usually circles, each representing a set.

  3. Euler diagram - Wikipedia

    en.wikipedia.org/wiki/Euler_diagram

    Composite of two pages from Venn (1881a), pp. 115–116 showing his example of how to convert a syllogism of three parts into his type of diagram; Venn calls the circles "Eulerian circles" [10] But nevertheless, he contended, "the inapplicability of this scheme for the purposes of a really general logic" [ 9 ] (p 100) and then noted that,

  4. Vesica piscis - Wikipedia

    en.wikipedia.org/wiki/Vesica_piscis

    The two circles of the vesica piscis, or three circles forming in pairs three vesicae, are commonly used in Venn diagrams. Arcs of the same three circles can also be used to form the triquetra symbol, and the Reuleaux triangle. [3]

  5. Borromean rings - Wikipedia

    en.wikipedia.org/wiki/Borromean_rings

    The commonly-used diagram for the Borromean rings consists of three equal circles centered at the points of an equilateral triangle, close enough together that their interiors have a common intersection (such as in a Venn diagram or the three circles used to define the Reuleaux triangle).

  6. Mathematical diagram - Wikipedia

    en.wikipedia.org/wiki/Mathematical_diagram

    A Venn diagram is a representation of mathematical sets: a mathematical diagram representing sets as circles, with their relationships to each other expressed through their overlapping positions, so that all possible relationships between the sets are shown. [4]

  7. Learn These 7 Lessons If You Want To Become a Millionaire ...

    www.aol.com/finance/learn-7-lessons-want-become...

    Check Out: 4 Things You Must Do When Your Savings Reach $50,000. ... To guide his decision, he used the “Hedgehog Concept,” a three-circle Venn diagram.

  8. Overlapping circles grid - Wikipedia

    en.wikipedia.org/wiki/Overlapping_circles_grid

    The center lens of the 2-circle figure is called a vesica piscis, from Euclid. Two circles are also called Villarceau circles as a plane intersection of a torus. The areas inside one circle and outside the other circle is called a lune. The 3-circle figure resembles a depiction of Borromean rings and is used in 3-set theory Venn diagrams.

  9. Sal Pullia, who had ties to politics and the Chicago Outfit ...

    www.aol.com/entertainment/sal-pullia-had-ties...

    It issued more than 30 subpoenas, creating a veritable Venn diagram of Chicago’s overlapping political and mobster circles.