HTML Entity Detail
HTML Entity - Not Sign (negation)
Not Sign (negation) is a mathematical operators, comparison symbols, and notation characters. This HTML entity enables web developers to display this character reliably across all browsers without encoding issues.
Symbol preview
¬
Unicode
U+00AC
HTML entity
¬
CSS code
\00AC
Usage Examples
Use this HTML entity in mathematical expressions and equations. For example, ≠ for not equal, ≤ for less than or equal, ∞ for infinity.
Related Entities
Common Mistakes
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Mistake: Using the word "not" or a slash instead of ¬ in logic notation
Fix: Use ¬ (¬) for logical negation. In mathematical logic, ¬p means "not p".
⚠️
Mistake: Confusing ¬ (logical not) with ~ (tilde) in logic
Fix: In formal logic, ¬ is the standard negation symbol. The tilde ~ is sometimes used informally but ¬ is preferred.
Not Sign (negation)
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Category: Math Symbol
| Unicode | U+00AC |
|---|---|
| Hex Code | ¬ |
| HTML Code | ¬ |
| HTML Entity | ¬ |
| CSS Code | \00AC |
| Windows Shortcut | Alt 0172 |
| Mac Shortcut | |
HTML code example
CSS code example
