U+2AA3 "⪣" Double Nested Less-than with Underbar Unicode Character
Unicode Version 17.0
⪣
U+2AA3 "⪣" Double Nested Less-than with Underbar is a mathematical relational symbol consisting of two stacked less-than signs, resembling a double less-than but with an additional underline beneath the glyph. It is encoded in the Supplemental Mathematical Operators block and is typically used in advanced mathematical notation, particularly in logic or order theory, to denote a specialized ordering or comparison relation, such as a strict variant of a nested inequality or a custom binary operator in formal systems. Its inclusion in Unicode allows for precise textual representation in digital documents without relying on font-specific approximations.
General Properties
| Code Point | U+2AA3 |
| Version Added | 3.2 |
| Name | Double Nested Less-than with Underbar |
| Block | Supplemental Mathematical Operators |
| General Category | Math Symbol |
| Canonical Combining Class | Not Reordered |
| Bidirectional Class | Other Neutral |
| Mirrored | Yes |
Encodings
| HTML Decimal Encoding | ⪣ |
| HTML Hex Encoding | ⪣ |
| UTF-8 Encoding | 0xE2 0xAA 0xA3 |
| UTF-16 Encoding | 0x2AA3 |
| UTF-32 Encoding | 0x00002AA3 |
| C/C++/Java Escape | \u2aa3 |
Unicode Properties
| NFC Quick Check | Yes |
| NFD Quick Check | Yes |
| NFKC Quick Check | Yes |
| NFKD Quick Check | Yes |
| Numeric Type | None |
| Numeric Value | NaN |
| Line Break | Alphabetic |
| Script | Common |
| Script Extensions | Common |
| Indic Syllabic Category | Other |
| Pattern Syntax | Yes |
| Math | Yes |
| Vertical Orientation | Rotated |
| Grapheme Base | Yes |
| Grapheme Cluster Break | Other |
| Word Break | Other |
| Sentence Break | Other |