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\[NotNestedLessLess]\[NotPrecedesEqual]

NotPrecedes

NotPrecedes \[NotPrecedes]

FilledSmallSquare Infix ordering operator.

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

FilledSmallSquare See The Mathematica Book: Section 3.10.4.

FilledSmallSquare See also: \[Precedes] .

\[NotNestedLessLess]\[NotPrecedesEqual]