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 Documentation / Mathematica / The Mathematica Book / Reference Guide / Listing of Named Characters  /

  • Alias: un.
  • Infix operator with built-in evaluation rules.
  • x

    y is by default interpreted as Union[x,y].
  • The character is sometimes called "cup"; but see also \[Cup].
  • See The Mathematica Book:

    Section 1.10.4, Section 3.10.1Section 3.10.4.
  • See also: \[Intersection], \[SquareUnion], \[UnionPlus], \[Cup], \[Vee].