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\[FilledDownTriangle]\[FilledSmallCircle]

FilledRectangle

FilledRectangle \[FilledRectangle]

FilledSmallSquare Letter-like form.

FilledSmallSquare Used in mathematics to indicate the end of a proof.

FilledSmallSquare See The Mathematica Book: Section 3.10.3.

FilledSmallSquare See also: \[EmptyRectangle] .

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