U+2A7B "⩻" Less-than with Question Mark Above Unicode Character
Unicode Version 17.0
⩻
U+2A7B "⩻" Less-than with Question Mark Above is a mathematical symbol that combines the standard less-than sign with a question mark placed directly above it, primarily used in formal logic and mathematics to denote a relation that is suspected or questioned to be one of less than, often within the context of uncertain or conjectural inequalities. It allows mathematicians to express a tentative comparison where the truth of the less-than relationship is not yet established but is being considered or hypothesized. This character is part of the Supplemental Mathematical Operators block in Unicode, providing a concise typographic solution for representing this nuanced relational concept in digital text and scholarly documents.
General Properties
| Code Point | U+2A7B |
| Version Added | 3.2 |
| Name | Less-than with Question Mark Above |
| Block | Supplemental Mathematical Operators |
| General Category | Math Symbol |
| Canonical Combining Class | Not Reordered |
| Bidirectional Class | Other Neutral |
| Mirrored | Yes |
| Mirrored Character | "⩼" U+2A7C Greater-than with Question Mark Above |
Encodings
| HTML Decimal Encoding | ⩻ |
| HTML Hex Encoding | ⩻ |
| UTF-8 Encoding | 0xE2 0xA9 0xBB |
| UTF-16 Encoding | 0x2A7B |
| UTF-32 Encoding | 0x00002A7B |
| C/C++/Java Escape | \u2a7b |
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 |