U+2AD9 "⫙" Element of Opening Downwards Unicode Character
Unicode Version 17.0
⫙
U+2AD9 "⫙" Element of Opening Downwards is a mathematical symbol that represents a variant of the set membership relation, specifically denoting that an element is contained within a set that opens or is oriented downward in logical or relational diagrams. This symbol, part of the Supplemental Mathematical Operators block, is used in advanced mathematical notation to express a directional or structural nuance in set theory and formal logic contexts where standard membership signs are insufficient. Its distinctive shape, resembling a reversed or inverted "∈" with a downward opening, helps clarify that the contained element is positioned relative to a concept or structure that is oriented in a descending manner.
General Properties
| Code Point | U+2AD9 |
| Version Added | 3.2 |
| Name | Element of Opening Downwards |
| 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 0x99 |
| UTF-16 Encoding | 0x2AD9 |
| UTF-32 Encoding | 0x00002AD9 |
| C/C++/Java Escape | \u2ad9 |
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 |