U+22A7 "⊧" Models Unicode Character
Unicode Version 17.0
⊧
U+22A7 "⊧" Models is a mathematical symbol primarily used in logic and model theory to represent the relationship of logical consequence or semantic entailment. In formal notation, it indicates that a set of premises or axioms semantically implies a particular conclusion, meaning that every interpretation or model that satisfies the premises also satisfies the conclusion. This symbol is distinct from the similar looking "turnstile" (⊢) which denotes syntactic provability, as ⊧ focuses on the truth of statements in all possible models. It plays a fundamental role in defining the semantics of formal languages, particularly in first-order logic and related disciplines.
General Properties
| Code Point | U+22A7 |
| Version Added | 1.1 |
| Name | Models |
| Block | Mathematical Operators |
| General Category | Math Symbol |
| Canonical Combining Class | Not Reordered |
| Bidirectional Class | Other Neutral |
| Mirrored | Yes |
Encodings
| HTML Decimal Encoding | ⊧ |
| HTML Hex Encoding | ⊧ |
| UTF-8 Encoding | 0xE2 0x8A 0xA7 |
| UTF-16 Encoding | 0x22A7 |
| UTF-32 Encoding | 0x000022A7 |
| C/C++/Java Escape | \u22a7 |
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 |