The Not Less-Than symbol (≮). Copy and paste it, or use its Unicode, HTML, and CSS codes.
More from Math.
The quickest way is to copy ≮ from this page and paste it anywhere. You can also insert it with its Unicode, HTML, or alt code listed above.
≮ is U+226E (decimal 8814).
Use ≮ in HTML to render ≮ on a web page.
On Windows you can type it with Alt+8814 (hold Alt and enter the number on the numeric keypad).
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