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MathGroup Archive 1997

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Re: Q : Lists as sets.

  • To: mathgroup at
  • Subject: [mg7883] Re: Q : Lists as sets.
  • From: dreece at (Daryl Reece)
  • Date: Thu, 17 Jul 1997 15:35:45 -0400
  • Organization: MindSpring Enterprises, Inc.
  • Sender: owner-wri-mathgroup at

Why can't you just use the list as is?  MMA defines certain set
functions that operate on lists.  Union, Complement, Intersection

Gadi Oron <oron at> wrote:

>Hi there,

>I want to use a list as a mathematical set. How can I do that? (Nothing in
>the MMA book).

>I found one (not elegant) way to do it : Allways do set=Union[list] but
>that is really ugly.

>Any ideas?


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