NotRightTriangle
 Usage
 \[NotRightTriangle]
Notes
• Infix ordering operator. • x  y is by default interpreted as NotRightTriangle[x, y]. • See Section 3.10.4. • See also: \[NotRightTriangleBar] , \[NotRightTriangleEqual] , \[NotLeftTriangle] , \[RightTriangle] .
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