↣
Arrow 20
- Unicode
- U+21A3
- Category
- Arrows
- HTML Entity
- ↣
- CSS
- \21A3
The ↣ symbol, formally known as the Rightwards Arrow with Tail, is a directional Unicode character featuring a distinct vertical mark at its origin. In mathematics and set theory, it is primarily used to denote an injective (one-to-one) function, showing how elements from one set map uniquely to another. Outside of academic contexts, it serves as a highly stylized typographical element to visually indicate direction, flow, or a starting point leading to a progression.
How to Type
- Windows
- Alt+8611 or Win+. then search 'Rightwards Arrow with Tail'
- macOS
- Control+Command+Space then search 'Rightwards Arrow with Tail'
- Linux
- Ctrl+Shift+U then 21a3
- HTML
- ↣ or ↣
In Programming
In mathematical notation and formal logic, the ↣ symbol explicitly denotes an injective (one-to-one) function. It is widely supported in technical documentation and academic papers via LaTeX using the \rightarrowtail command.
Tags
arrow
direction
function mapping
injective function
math
one-to-one
right
set theory
tail
unicode arrows