U+27C4 "⟄" Open Superset Unicode Character
Unicode Version 17.0
⟄
U+27C4 "⟄" Open Superset is a mathematical symbol that visually resembles a standard superset sign (⊃) but with an open or hollow appearance on its left side, rather than being a fully closed or solid shape. It belongs to the Miscellaneous Mathematical Symbols-A block and is primarily used in set theory and logic to denote a relationship of superordination, often indicating that one set contains another, though its stylistic variation from the more common superset symbol can serve to highlight a specific formal property or contextual nuance, such as a partial or non-strict inclusion.
General Properties
| Code Point | U+27C4 |
| Version Added | 4.1 |
| Name | Open Superset |
| Block | Miscellaneous Mathematical Symbols-A |
| General Category | Math Symbol |
| Canonical Combining Class | Not Reordered |
| Bidirectional Class | Other Neutral |
| Mirrored | Yes |
| Mirrored Character | "⟃" U+27C3 Open Subset |
Encodings
| HTML Decimal Encoding | ⟄ |
| HTML Hex Encoding | ⟄ |
| UTF-8 Encoding | 0xE2 0x9F 0x84 |
| UTF-16 Encoding | 0x27C4 |
| UTF-32 Encoding | 0x000027C4 |
| C/C++/Java Escape | \u27c4 |
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 |