Aleph

Aleph, or alef, א, is the first letter of the Hebrew alphabet.

In mathematics, aleph, often with various subscripts, usually refers to a series of numbers used to represent the cardinality of infinite sets. See Aleph number for a more detailed discussion.

Other things called Aleph

• Aleph is also one of the most advanced systems for inductive logic programming. (Not to be confused with Alef, the concurrent programming language of choice for Plan 9)
• Aleph is also the name of a religion in Japan, formerly known as Aum Shinrikyo.
• Aleph is also the title of a short story by author Georg Brandes.
• Aleph One is a ongoing project related to the computer game Marathon. It can be found at http://source.bungie.org
• The Aleph is also the title of a short story by author Jorge Luis Borges