What ⟊ means
The notation using it supplies its role. Follow the formula's own definition.
An ISO proposal dated 2005-09-13 grouped ⟊ with spacing characters and marks attached to letters for Uralic transcription—writing down speech in Uralic languages.
Formal notation; context decides its role.
Don't substitute it for a turnstile symbol.
Don't confuse it with
3Questions people ask
1Why does ⟊ show as a box on some devices?
Because that device's fonts have no glyph for it. The character is still correct and still copies correctly — the box is a missing glyph, not a broken character.
How to type ⟊
Windows (Word)
Alt+XType 27CA, then Alt+X to get ⟊.
Windows
Win+Rrun charmap for the full table, or use the emoji picker's Ω symbols tab (Win + .).
macOS
Control+Command+SpaceOpen the character viewer and search “vertical bar with horizontal stroke”.
Linux
Ctrl+Shift+UType 27ca, then Enter or Space.
HTML
⟊CSS
\27CAWord for Windows
Type 27CA, then press Alt+X.
Linux
Press Ctrl+Shift+U, type 27CA, then Enter.
Mac
Search its name in Character Viewer.
Missing glyph
If ⟊ appears as a box, try a math-symbol font.
Codes and encoding1 code points
HTML decimal
⟊
HTML hex
⟊
CSS content
content: "\27CA";
Each escape is closed by the next backslash; a trailing space is needed before a literal hex digit.
URL encoded
%E2%9F%8A
1
On screen
1
Code points
1
JS .length
3
UTF-8 bytes
A visible symbol can contain several code points. JS .length counts UTF-16 units; UTF-8 counts bytes.