U+29B3 "⦳" Empty Set with Right Arrow Above Unicode Character
Unicode Version 17.0
⦳
U+29B3 "⦳" Empty Set with Right Arrow Above is a mathematical symbol that combines the empty set notation, typically representing a null or empty collection, with a rightward arrow positioned above it. This character belongs to the Miscellaneous Mathematical Symbols-B block and is used in advanced set theory or logic contexts to denote specific relationships, such as a function or mapping that produces an empty result, or to indicate a transformation where an operation leads to a void or nonexistent set. Its design merges the circle with a diagonal line of the empty set with a small arrow pointing to the right, clarifying the directional or functional nature of the empty outcome.
General Properties
| Code Point | U+29B3 |
| Version Added | 3.2 |
| Name | Empty Set with Right Arrow Above |
| Block | Miscellaneous Mathematical Symbols-B |
| General Category | Math Symbol |
| Canonical Combining Class | Not Reordered |
| Bidirectional Class | Other Neutral |
Encodings
| HTML Decimal Encoding | ⦳ |
| HTML Hex Encoding | ⦳ |
| UTF-8 Encoding | 0xE2 0xA6 0xB3 |
| UTF-16 Encoding | 0x29B3 |
| UTF-32 Encoding | 0x000029B3 |
| C/C++/Java Escape | \u29b3 |
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 |