NotGreaterGreater[x, y, ...] displays as x \[NotGreaterGreater] y \[NotGreaterGreater] ....
NotGreaterLess[x, y, ...] displays as x \[NotGreaterLess] y \[NotGreaterLess] ....
NotGreater[x, y, ...] displays as x \[NotGreater] y \[NotGreater] ....
NotGreaterTilde[x, y, ...] displays as x \[NotGreaterTilde] y \[NotGreaterTilde] ....
NotHumpDownHump[x, y, ...] displays as x \[NotHumpDownHump] y \[NotHumpDownHump] ....
NotHumpEqual[x, y, ...] displays as x \[NotHumpEqual] y \[NotHumpEqual] ....
NotLeftTriangleEqual[x, y, ...] displays as x \[NotLeftTriangleEqual] y \[NotLeftTriangleEqual] ....
NotLeftTriangle[x, y, ...] displays as x \[NotLeftTriangle] y \[NotLeftTriangle] ....
NotLessEqual[x, y, ...] displays as x \[NotLessEqual] y \[NotLessEqual] ....
NotLessFullEqual[x, y, ...] displays as x \[NotLessFullEqual] y \[NotLessFullEqual] ....