aleph-zero

Variant of aleph-null

aleph-null definition

aleph-null (-nul′)

noun

Math. in the theory of sets, the smallest infinite cardinal number; the cardinal number of the set of all positive integers: symbol, (א)

Webster's New World College Dictionary Copyright © 2009 by Wiley Publishing, Inc., Cleveland, Ohio.
Used by arrangement with John Wiley & Sons, Inc.

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