Aleph (disambiguation)

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Aleph is the first letter of many Semitic abjads (alphabets).

Aleph or Alef may also refer to:

Science and Technology[edit]

  • Aleph, an advanced system for inductive logic programming
  • ALEPH experiment (Apparatus for LEP Physics at CERN), one of the four detectors of the Large Electron-Positron Collider (LEP) at CERN
  • Alef (programming language), the concurrent programming language used in early editions of Plan 9
  • Aleph kernel, an operating system kernel, notable primarily for being one of the steps in the evolution of the Mach kernel


  • Aleph number, a sequence of cardinal numbers used to represent the cardinality (or size) of infinite sets.




  • Aleph Institute, a Jewish humanitarian organization for Jewish members of the US Armed forces and Jewish prison inmates
  • ALEPH: Alliance for Jewish Renewal
  • Aleph Zadik Aleph, the men's order of the B'nai B'rith Youth Organization (BBYO)
  • Aleph, a religious sect in Japan formerly known as Aum Shinrikyo