This is documentation for Mathematica 4, which was
based on an earlier version of the Wolfram Language.
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\[DoubleLongLeftArrow]\[DoubleLongRightArrow]

DoubleLongLeftRightArrow

DoubleLongLeftRightArrow \[DoubleLongLeftRightArrow]

FilledSmallSquare Alias: AliasIndicator<==>AliasIndicator.

FilledSmallSquare Infix arrow operator.

FilledSmallSquarex y is by default interpreted as DoubleLongLeftRightArrow[x, y].

FilledSmallSquare See The Mathematica Book: Section 3.10.4.

FilledSmallSquare See also: \[DoubleLeftRightArrow] , \[LongLeftRightArrow] , \[RightArrowLeftArrow] , \[LeftArrowRightArrow] .

\[DoubleLongLeftArrow]\[DoubleLongRightArrow]