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\[NotRightTriangle]\[NotRightTriangleEqual]

NotRightTriangleBar

NotRightTriangleBar \[NotRightTriangleBar]

FilledSmallSquare Infix ordering operator.

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

FilledSmallSquare See The Mathematica Book: Section 3.10.4.

FilledSmallSquare See also: \[NotRightTriangle] , \[NotRightTriangleEqual] , \[NotLeftTriangleBar] , \[RightTriangleBar] .

\[NotRightTriangle]\[NotRightTriangleEqual]