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Not natural number term

  1. Jun 8, 2016 #1
    Is there a term used to describe all number except the natural numbers?
  2. jcsd
  3. Jun 8, 2016 #2


    Staff: Mentor

    I don't think there's a term for this. I was thinking humorously unnatural numbers but alas this doesn't exist.

    One math website joked about it and said the nearest they could come to it were negative numbers...

    Wikipedia has a list of number types:

  4. Jun 8, 2016 #3
    Do you mean all real numbers except for the naturals? I suppose you'd denote it by ##\mathbb{R} \setminus \mathbb{N}##.

    There's really no notion of "all numbers" in mathematics, since "number" is mostly a colloquialism used to describe all kinds of unrelated things.
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