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\[SquareSubsetEqual]\[SquareSupersetEqual]

SquareSuperset

SquareSuperset \[SquareSuperset]

FilledSmallSquare Infix set relation operator.

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

FilledSmallSquare Used in computer science to indicate that x is a substring occurring at the end of y.

FilledSmallSquare See The Mathematica Book: Section 3.10.4.

FilledSmallSquare See also: \[NotSquareSuperset] , \[SquareSubset] .

\[SquareSubsetEqual]\[SquareSupersetEqual]