U+27DA · Math symbol
LaTeX
\DashVDash
Left And Right Double Turnstile Symbol ⟚
⟚ is left and right double turnstile, U+27DA — \DashVDash in LaTeX. It was added in Unicode 3.2, and Unicode files it under Math symbol.
Codes & technical data
| Unicode | U+27DA | |
|---|---|---|
| HTML hex | ⟚ | |
| HTML decimal | ⟚ | |
| CSS | \27DA | |
| JavaScript | \u{27DA} | |
| Python | \U000027DA | |
| Java / C# | \u27DA | |
| Rust | \u{27da} | |
| Swift | \u{27DA} | |
| PHP | \u{27DA} | |
| URL encoded | %E2%9F%9A | |
| UTF-8 bytes | E2 9F 9A | |
| UTF-16 bytes | 27DA | |
| Base64 | 4p+a | |
| Decimal | 10202 | |
| LaTeX | \DashVDash | |
| Category | Math symbol (Sm) | |
| Introduced | Unicode 3.2 | |
Will ⟚ survive being pasted?
- Normalisation. Yes. ⟚ is unchanged by NFKC, so it survives normalising systems intact.
- Legacy encodings. ⟚ is Unicode-only — it has no Latin-1 equivalent, so a system stuck on an 8-bit encoding cannot represent it.
- Size. 3 bytes in UTF-8. Character-limited fields — SMS, bios, some form validators — usually count bytes, not characters.
Unicode cross-references
The standard points readers of ⟚ at these characters — usually because they look alike, or because one is the correct choice where the other is often used by mistake.
Other turnstile characters
Unicode names 7 characters ending in “turnstile”. They differ by direction, weight or decoration rather than by meaning.
Nearby in Miscellaneous Mathematical Symbols-A
Overflow from the main operator block — extra brackets, angle marks and logic symbols that arrived after Mathematical Operators was closed.
How to type ⟚
| Windows | Type 27DA then press Alt+X |
|---|---|
| macOS | Press Ctrl+Cmd+Space, then search for “left and right double turnstile” |
| Linux | Press Ctrl+Shift+U, type 27da, press Enter |
| HTML | ⟚ |
About Unicode’s Math symbol category
Unicode classifies this as a mathematical symbol, which means software that lays out formulas treats it as an operator or relation and gives it spacing accordingly, rather than setting it tight against its neighbours like a letter.
Frequently asked questions
- How do I type the ⟚ left and right double turnstile symbol?
- On Windows, type 27DA and press Alt+X. On Linux press Ctrl+Shift+U then 27da. On any system the quickest route is the copy button on this page.
- What is the code for ⟚?
- Left And Right Double Turnstile is U+27DA and in LaTeX as \DashVDash. In UTF-8 it takes 3 bytes. The table above lists every escape format.
- What kind of character is ⟚?
- Left And Right Double Turnstile is filed under Math symbol in the Miscellaneous Mathematical Symbols-A block, and was introduced in Unicode 3.2. Unicode classifies this as a mathematical symbol, which means software that lays out formulas treats it as an operator or relation and gives it spacing accordingly, rather than setting it tight against its neighbours like a letter.