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See also: א
U+2135.svg
U+2135, ℵ
(LaTeX: \aleph)
ALEF SYMBOL

[U+2134]
Letterlike Symbols
[U+2136]

Translingual[edit]

Etymology[edit]

Introduced by Georg Cantor, based on the Hebrew letter א, initial letter of אינסוף (infinity).

Symbol[edit]

(English symbol name aleph)

  1. (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]