What ↛ means
It negates the rightward relation shown by the arrow. The right arrow with slash, ↛, can mean “does not imply” in logic or “does not map to” in function notation; the surrounding formula tells you which reading fits.
Arrows served as practical direction markers: an illustrated treatise from 1737 used them for water flow and wheel rotation. Mathematicians later used arrows to write formal relationships. A right-facing implication arrow is documented in 1922, and arrow notation for functions became established around 1940.
Formal mathematical and technical notation; in a casual message, it can look cryptic.
Part of the collection
Don't confuse it with
2
Related characters
3
Combination ideas
3Questions people ask
1Why 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.
More like this
12
How to type or find ↛
- Also called
- nrightarrow · not right arrow · crossed right arrow
- Search it as
- right arrow slash · negated arrow · non implication symbol · LaTeX arrow
- Shows up in
- Anything that takes text · its shape is whatever your font draws
↛\219BCodes and encoding1 code points
A visible symbol can contain several code points. JS .length counts UTF-16 units; UTF-8 counts bytes.