U+2A42 "⩂" Union with Overbar Unicode Character
Unicode Version 17.0
⩂
U+2A42 "⩂" Union with Overbar is a mathematical symbol used in set theory and related fields to denote the union of two sets with an overline or bar drawn above it, typically indicating the complement of that union or a modified union operation involving closure or an additional constraint. This character belongs to the Supplemental Mathematical Operators block, which provides a range of specialized symbols for advanced notation in mathematics and logic. Its visual form combines the familiar cup-shaped union symbol (∪) with a horizontal overbar, distinguishing it from the standard union operator in formal written expressions.
General Properties
| Code Point | U+2A42 |
| Version Added | 3.2 |
| Name | Union with Overbar |
| 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 0xA9 0x82 |
| UTF-16 Encoding | 0x2A42 |
| UTF-32 Encoding | 0x00002A42 |
| C/C++/Java Escape | \u2a42 |
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 |