⊽
Math Operator 186
- Unicode
- U+22BD
- Category
- Math
- HTML Entity
- ⊽
- CSS
- \22BD
The ⊽ (NOR) symbol represents the logical "Not OR" operation in boolean algebra and formal logic. Visually formed by placing an overbar above the standard logical OR symbol (∨), it evaluates to true only when both of its operands are false. While primarily used in academic papers, truth tables, and electrical engineering schematics, this operator is a fundamental building block of modern digital computing.
How to Type
- Windows
- Type 22BD then press Alt + X (in Word), or use the Windows Character Map
- macOS
- Control + Command + Space, then search for 'NOR'
- Linux
- Ctrl + Shift + U, then type 22bd and press Enter
- HTML
- ⊽
In Programming
In computer science and digital electronics, NOR is a universal logic gate used to build any other boolean function. While typically written as a combination of operators in programming languages (such as `!(A || B)` in C-style syntax), the ⊽ symbol frequently appears in formal mathematical proofs and algorithm documentation.
Tags
LaTeX barvee
NOR gate
NOR operation
boolean
boolean algebra
digital circuit
digital logic gate
electrical engineering
logic
logic design
mathematics
nor
not or
not or operator
truth table
universal gate
⊽ symbol