1. Jun 8, 2016 #1

   Pjpic

   

   Is there a term used to describe all number except the natural numbers?

    

   Pjpic, Jun 8, 2016
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3. Jun 8, 2016 #2

   jedishrfu

   

   Insights Author

   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:
   
   https://en.wikipedia.org/wiki/List_of_types_of_numbers

    

   jedishrfu, Jun 8, 2016
4. Jun 8, 2016 #3

   Number Nine

   

   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.

    

   Number Nine, Jun 8, 2016

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