Square (Built-in Mathematica Symbol)

Square[x] displays as \[Square]x.

SquareSubset (Built-in Mathematica Symbol)

SquareSubset[x, y, ...] displays as x \[SquareSubset] y \[SquareSubset] ....

SquareSuperset (Built-in Mathematica Symbol)

SquareSuperset[x, y, ...] displays as x \[SquareSuperset] y \[SquareSuperset] ....

SquareUnion (Built-in Mathematica Symbol)

SquareUnion[x, y, ...] displays as x \[SquareUnion] y \[SquareUnion] ....

Star (Built-in Mathematica Symbol)

Star[x, y, ...] displays as x\[Star]y\[Star]....

SubsetEqual (Built-in Mathematica Symbol)

SubsetEqual[x, y, ...] displays as x \[SubsetEqual] y \[SubsetEqual] ....

Subset (Built-in Mathematica Symbol)

Subset[x, y, ...] displays as x \[Subset] y \[Subset] ....

SucceedsEqual (Built-in Mathematica Symbol)

SucceedsEqual[x, y, ...] displays as x \[SucceedsEqual] y \[SucceedsEqual] ....

Succeeds (Built-in Mathematica Symbol)

Succeeds[x, y, ...] displays as x \[Succeeds] y \[Succeeds] ....

SucceedsSlantEqual (Built-in Mathematica Symbol)

SucceedsSlantEqual[x, y, ...] displays as x \[SucceedsSlantEqual] y \[SucceedsSlantEqual] ....