U+2AE8 "⫨" Short Up Tack with Underbar Unicode Character
Unicode Version 17.0
⫨
U+2AE8 "⫨" Short Up Tack with Underbar is a mathematical symbol primarily used in formal logic and set theory to denote a specific type of binary relation, often representing a "not less than" or "not a subset" relationship, depending on the context, with the underbar adding a negation or distinction from a standard up tack. Its design combines a short vertical line (the tack) that points upward, intersecting a short horizontal bar beneath it, visually indicating a blocking or limiting condition. This character belongs to the Supplemental Mathematical Operators block and is encoded for use in technical texts where precise symbolic representation is required, such as in proofs or algebraic notation.
General Properties
| Code Point | U+2AE8 |
| Version Added | 3.2 |
| Name | Short Up Tack with Underbar |
| Block | Supplemental Mathematical Operators |
| General Category | Math Symbol |
| Canonical Combining Class | Not Reordered |
| Bidirectional Class | Other Neutral |
Encodings
| HTML Decimal Encoding | ⫨ |
| HTML Hex Encoding | ⫨ |
| UTF-8 Encoding | 0xE2 0xAB 0xA8 |
| UTF-16 Encoding | 0x2AE8 |
| UTF-32 Encoding | 0x00002AE8 |
| C/C++/Java Escape | \u2ae8 |
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 |