U+2AEB "⫫" Double Up Tack Unicode Character
Unicode Version 17.0
⫫
U+2AEB "⫫" Double Up Tack is a mathematical symbol consisting of two perpendicular tacks stacked vertically, representing a relationship in formal logic and lattice theory. It is often used to denote the concept of "independent of" or "orthogonal" in propositional logic, specifically indicating that two propositions are not provably related. In lattice theory, it can signify that two elements are incompatible or have no common covering, and its distinct design helps avoid confusion with the similar single up tack symbol.
General Properties
| Code Point | U+2AEB |
| Version Added | 3.2 |
| Name | Double Up Tack |
| 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 0xAB |
| UTF-16 Encoding | 0x2AEB |
| UTF-32 Encoding | 0x00002AEB |
| C/C++/Java Escape | \u2aeb |
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 |