\[TwoWayRule]

  • Unicode: 0F120.
  • Aliases: <->␣.
  • Infix operator with built‐in evaluation rules.
  • x y is by default interpreted as x<->y or TwoWayRule[x,y].
  • x y z groups as x (y z).
  • \[TwoWayRule] is not the same as \[LeftRightArrow].