Aleph

Aleph is the first letter of the Hebrew alphabet.

• In mathematics, Georg Cantor decided to use alephs to determine the cardinality of infinite sets. These are called aleph numbers, with some of the most notable ones being aleph null (${\displaystyle \aleph _{0}$) and aleph one (${\displaystyle \aleph _{1}$).^[1]

Aleph ("a" pronounced as "father") has a mute sound and is represented by the symbol "א".^[2]

• Bet (letter)
• Cardinal number

1. ↑ "Comprehensive List of Set Theory Symbols". Math Vault. 2020-04-11. Retrieved 2020-10-07.
2. ↑ "The Hebrew Alphabet (Aleph-Bet)". www.jewishvirtuallibrary.org. Retrieved 2020-10-07.

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