U+2A77 "⩷" Equals Sign with Two Dots Above and Two Dots Below Unicode Character
Unicode Version 17.0
⩷
U+2A77 "⩷" Equals Sign with Two Dots Above and Two Dots Below is a mathematical typographic symbol primarily used in formal logic and algebra to denote a specific type of equivalence or equality relation. It features a standard equals sign augmented by two dots placed symmetrically above the top bar and two dots below the bottom bar, giving it a distinctive visual appearance that distinguishes it from similar symbols like the triple bar or double colon. This character is part of the Supplemental Mathematical Operators block and is intended for precise notation in academic and technical contexts where standard equals signs or other diacritic combinations might be ambiguous or insufficient.
General Properties
| Code Point | U+2A77 |
| Version Added | 3.2 |
| Name | Equals Sign with Two Dots Above and Two Dots Below |
| 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 0xB7 |
| UTF-16 Encoding | 0x2A77 |
| UTF-32 Encoding | 0x00002A77 |
| C/C++/Java Escape | \u2a77 |
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 |