ℵ
Definition from Wiktionary, the free dictionary
See also: א [U+05D0 HEBREW LETTER ALEF]
| Character | ℵ | ||
|---|---|---|---|
| Unicode name | ALEF SYMBOL | ||
| Code point | U+2135 | ||
| Entity number | ℵ | ||
| Unicode block | Letterlike Symbols | ||
| LaTeX input | \aleph |
||
|
|||
Translingual[edit]
Etymology[edit]
Introduced by Georg Cantor, based on the Hebrew letter א, initial letter of אינסוף (infinity).
Symbol[edit]
ℵ (English symbol name aleph)
- (set theory) Symbol for the cardinality of a well-orderable infinite set.
Usage notes[edit]
- Unicode has two code points for the Hebrew letter aleph. For Hebrew text, א, should be used . This character should be used for the mathematical symbol since it retains the left-to-right orientation of the text.
See also[edit]
- ℵ0: aleph-null, aleph-zero
- ℵ1: aleph-one
- ℶ
