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NotElement \[NotElement]

FilledSmallSquare Alias: AliasIndicator!elAliasIndicator.

FilledSmallSquare Infix set relation operator with built-in evaluation rules.

FilledSmallSquare x y is by default interpreted as NotElement[x, y].

FilledSmallSquare See Section 1.10.8 and Section 3.10.4.

FilledSmallSquare See also: \[Element] , \[NotReverseElement] .