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⫠

short up tack

Short Up Tack

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⫠ is a mathematical sign shaped like an upside-down T: a horizontal base with a short stem pointing up. It is the short counterpart of the up tack , but a separate character. Its shape alone does not make it a substitute for the familiar perpendicular sign.

Text symbol

What ⫠ means

No. ⫠ and are separate mathematical characters.

The familiar can express perpendicularity—lines meeting at a right angle—and also appears in logic for falsity or contradiction. Those readings do not automatically carry over to ⫠. When transcribing mathematics, keep the sign the author used and follow the text's definition rather than replacing it with .

The name describes the drawing: “up” is the direction of the stem, and “short” distinguishes it from the ordinary up tack. Fonts can change its proportions, so the visible height is not a reliable way to identify the character.

Part of collections

Questions people ask

1

Why does ⫠ show as a box on some devices?

Not every system ships a font for the Supplemental Mathematical Operators block. Where none is installed, the character shows as an empty box; adding a font such as Noto fixes it. The character itself is still correct and copies correctly.

How to type or find ⫠

Search it as
upside-down T symbol · short perpendicular symbol · ⫠ meaning
Shows up in
Anything that takes text · its shape is whatever your font draws
Windows (Word)
⎇Alt+XType 2AE0, then AltX 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 “short up tack”.
Linux
⎈Ctrl+⇧Shift+UType 2ae0, then Enter or Space.
HTML
⫠
CSS
\2AE0
Microsoft Word on Windows
Type 2AE0, then press AltX to turn the code into ⫠.
Codes and encoding1 code points
HTML decimal
⫠
HTML hex
⫠
CSS content
content: "\2AE0";
Each escape is closed by the next backslash; a trailing space is needed before a literal hex digit.
URL encoded
%E2%AB%A0
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.

Families this belongs to

1

Maths & numbers1,835 symbols