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What is zero in math.

  1. Nov 28, 2003 #1
    what is zero in math.
  2. jcsd
  3. Nov 28, 2003 #2


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    It's an integer. Can you be more specific?

    - Warren
  4. Nov 28, 2003 #3
    By ZF set theory this is the cardinal of the empty set.

    0 = |{}| (no content exists)
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