The ≨ Symbol: Meaning, Math, and How to Type It
The ≨ symbol, officially known as "Less-Than But Not Equal To" (U+2268), is a mathematical operator used to explicitly state that one value is strictly smaller than another and absolutely cannot be equal to it. While it functions similarly to the standard less-than sign (<), mathematicians use ≨ to emphasize the strictness of the inequality, particularly in contexts where a "less-than or equal to" (≤) relationship is the expected default.
This character belongs to the Mathematical Operators block of the Unicode standard. It was introduced to bridge gaps in advanced mathematical notation, specifically in order theory and set theory. By visually combining the less-than sign with a slashed equals sign (≠), the symbol leaves no room for ambiguity. Its official Unicode code point is U+2268.
In everyday arithmetic, you probably won't encounter the ≨ symbol. The trusty < handles most basic math perfectly well. However, in advanced mathematics, computer science, and programming logic, precision is everything. When defining partial orders or complex algebraic structures, writers use ≨ to remind the reader that equality has been tested and explicitly ruled out. Outside of STEM fields, it rarely pops up in typography or social media, though text-art enthusiasts sometimes repurpose obscure mathematical symbols for creative kaomoji and digital art.
Typing the ≨ symbol requires a bit of keyboard gymnastics since it doesn't appear on standard layouts. On Windows, you can use the Character Map or type the Unicode hex code 2268 followed by Alt + X in supported apps like Microsoft Word. Mac users can enable the Unicode Hex Input keyboard and hold Option while typing 2268. For web developers, the HTML entity ≨ renders the symbol perfectly. When all else fails, copying and pasting from an online encyclopedia remains the easiest method.
The ≨ symbol belongs to a broader family of inequality operators. Its most direct counterpart is ≩ (Greater-Than But Not Equal To, U+2269). It also heavily relates to the standard Less-Than sign (<, U+003C) and the Less-Than or Equal To sign (≤, U+2264). Unlike ≤, which leaves the door open for both mathematical possibilities, ≨ slams the door on equality entirely.