This is documentation for Mathematica 8, which was
based on an earlier version of the Wolfram Language.
View current documentation (Version 11.2)
MATHEMATICA CHARACTER NAME

\[Union]

  • Unicode: 22C3.
  • Alias: Esc un Esc.
  • Infix operator with built-in evaluation rules.
  • x y is by default interpreted as Union.
  • The character is sometimes called "cup".