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Subset \[Subset]

FilledSmallSquare Alias: AliasIndicatorsubAliasIndicator.

FilledSmallSquare Infix set relation operator.

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

FilledSmallSquare Usually used in mathematics to indicate subset; sometimes proper subset.

FilledSmallSquare See The Mathematica Book: Section 3.10.4.

FilledSmallSquare See also: \[SubsetEqual] , \[SquareSubset] , \[Element] , \[Precedes] , \[LeftTriangle] , \[NotSubset] .