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￢

fullwidth not sign

Fullwidth Not Sign

￢ means logical NOT: before a statement, it means “not,” as in ￢P (“not P”). Its full-width shape fills an East Asian text cell; the width changes, not the logic.

Text symbol
Search it as
logical NOT · negation · not sign · zenkaku · Shift-JIS
Shows up in
Anything that takes text · its shape is whatever your font draws

What ￢ means

It means “not”; the wider form serves East Asian text layouts. In Japanese, this width style is called 全角 (zenkaku, “full-width”): ￢ takes a full character cell, while ¬ is narrower. The wide not sign aligns with Chinese, Japanese, or Korean text; both forms mean logical NOT.

Peano used a tilde (~) for negation in 1897. That dates one notation for the operation, not ￢ itself.

For Shift-JIS conversion, a 2016 IBM guide maps byte 0x81CA to ¬ and recommends CP943. Check old conversions to keep ￢ and ¬ distinct.

Don't confuse it with

1
¬
Not Sign
￢ vs ¬: both mean logical NOT; ¬ is narrow, ￢ is full-width.

Questions people ask

1

Why 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 FFE2, 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 “fullwidth not sign”.
Linux
Ctrl+Shift+UType ffe2, then Enter or Space.
HTML
￢
CSS
\FFE2
Microsoft Word
How to type ￢ in Word 2016, 2019, 2021, 2024, and Microsoft 365: enter FFE2 and press Alt+X. If letters or digits touch it, select only FFE2 first.
Codes and encoding1 code points
HTML decimal
￢
HTML hex
￢
CSS content
content: "\FFE2";
Each escape is closed by the next backslash; a trailing space is needed before a literal hex digit.
URL encoded
%EF%BF%A2
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

Chinese, Japanese & Korean121,370 symbols

ᄀᄁᄂᄃᄄᄅᄆᄇᄈᄉᄊᄋ