This is documentation for Mathematica 6, which was
based on an earlier version of the Wolfram Language.
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Mathematica Character Name

\[Colon]

  • Unicode: 2236.
  • Alias: Esc : Esc.
  • Infix operator.
  • x ∶ y is by default interpreted as Colon[x, y].
  • Used in mathematics to mean "such that".
  • Occasionally used to indicate proportion.
  • Used to separate hours and minutes in times.