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MathGroup Archive 2004

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Re: Min[], Max[]

  • To: mathgroup at smc.vnet.net
  • Subject: [mg48330] Re: Min[], Max[]
  • From: Roland Franzius <roland.franzius at uos.de>
  • Date: Tue, 25 May 2004 07:16:45 -0400 (EDT)
  • Organization: Universitaet Hannover
  • References: <c8rutb$8nl$1@smc.vnet.net>
  • Sender: owner-wri-mathgroup at wolfram.com

Frank Brand wrote:

> Dear newsgroup members,
> 
> can anyone explain me what´s the sense in the definition of
> 
> Min[{}]= Infinity and Max[{}]= -Infinity

You need that empty definition to unify the relations

Min[A]>=Min[B]  if A \subseteq B

Max[A]<=Max[B]  if A \subseteq B

since the empty set is a subset of every set.

-- 

Roland Franzius


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