Aleph

Aleph or alef has several meanings:

• Aleph or Alef (א) the first letter of the Hebrew alphabet; ʾalif is the equivalent letter of the Arabic alphabet.
• Alef, the concurrent programming language used in early editions of Plan 9;
• Alef, one of the main protagonists in SEGA's Shining Force;
• Aleph, a short story by author Georg Brandes;
• Aleph, a modern Buddhist religious group in Japan formerly known as Aum Shinrikyo;
• Aleph, an advanced system for inductive logic programming.
• ALEPH detector or ALEPH experiment, one of the four detectors of the Large Electron-Positron Collider (LEP) at CERN;
• aleph number or cardinality, the measurement of mathematical sets?
  • aleph null (<math>\aleph_0<math>), the cardinality of countable infinite sets;
  • aleph one (<math>\aleph_1<math>), the cardinality of certain uncountably infinite sets, possibly including the real numbers?
• Aleph One, an ongoing project related to the computer game Marathon;
• Aleph programming language;
• The Aleph, a short story by author Jorge Luis Borges.