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LongLeftRightArrow \[LongLeftRightArrow]

FilledSmallSquare Alias: AliasIndicator<-->AliasIndicator.

FilledSmallSquare Infix arrow operator.

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

FilledSmallSquare See The Mathematica Book: Section 3.10.4.

FilledSmallSquare See also: \[LeftRightArrow] , \[DoubleLongLeftRightArrow] , \[LeftArrowRightArrow] , \[Equilibrium] .