# Negation Symbol (NOT)

## Copy and Paste

Click to Copy ▼
¬
HTML Meaning
¬ `&not;`
`&#172;`
`U+AC`
Negation Symbol (NOT)
The Negation Symbol, denoted as ¬, represents the logical operation of negation. It results in true when its operand is false and vice versa.

### What is the Negation Symbol (NOT)?

The Negation Symbol, symbolized by ¬, is used in logic to denote the logical operation of negation. A negation results in true when its operand is false and vice versa.

### Alternative Representations in Software and Programming

In various software applications and programming languages, the "not" operation can be represented differently:

• JavaScript (JS): The logical "not" is represented using `!`. For example, `!x`.
• Google Sheets: Uses the function `NOT()`, as in `=NOT(A1=10)`.
• Excel: Primarily uses the function `NOT()`, like `=NOT(A1=10)`.

### Applications of the Negation Symbol in Various Fields

The Negation Symbol (¬) has applications in multiple disciplines:

• Mathematics: Widely used in propositional logic and other mathematical contexts.
• Computer Science: Employed in programming for logical operations and conditions.
• Philosophy: Used in formal logic and philosophical arguments.

The interpretation of the Negation Symbol largely depends on its contextual usage, whether in academic disciplines or applied sciences.

### How to Type the Negation Symbol Using Keyboard Shortcuts, Alt Codes, and LaTeX

• Windows: Hold down the Alt key and type the appropriate code on the numeric keypad, then release the Alt key. (The specific Alt code may vary based on font and software.)
• Mac: Specific shortcut might vary. Often, specialized software or settings are needed.
• Linux: Press Ctrl + Shift + u, then type the Unicode hexadecimal and press Enter.
• HTML: Use the named entity appropriate for the negation symbol or its numeric entity.
• LaTeX: To type the Negation Symbol in LaTeX, use the command `\lnot`.