Aleph Null
ℵ₀
Type it
| Unicode | U+2135 U+2080 | |
|---|---|---|
| LaTeX | \aleph_0 | |
| HTML entity | ℵ₀ | |
| Character | ℵ₀ |
Meaning
The cardinality of the natural numbers, the smallest infinite size a set can have. Any set this size is called countable. Compare with Natural Numbers and Infinity.
How to read it
|ℕ| = ℵ₀
is read “the cardinality of the natural numbers is aleph null”.