This function has not been fully integrated into the long-term Mathematica system, and is subject to change.

is an option for cells that specifies which replacement rules Mathematica automatically applies when importing text.


  • The replacement rules to be applied are specified as a list, each element of which has the form .
  • This option allows you to control the appearance of selected expressions or operators in a notebook. Some replacement rules that are usually set by default are as follows.
  • "->" → "\[Rule]"
  • ":>" → "\[RuleDelayed]"
  • "<=" → "\[LessEqual]"
  • ">=" → "\[GreaterEqual]"
  • "!=" → "\[NotEqual]"
  • "==" → "\[Equal]"
New in 4.0
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