This is documentation for Mathematica 4, which was
based on an earlier version of the Wolfram Language.
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DistributeComposition

Identity

FilledSmallSquareIdentity[expr] gives expr (the identity operation).

FilledSmallSquare See The Mathematica Book: Section 2.2.9.

FilledSmallSquare See also: Composition, Through, InverseFunction, Sequence, Hold.

Further Examples

DistributeComposition