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MathGroup Archive 2010

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Why this can't be reduced by mathematica?!

  • To: mathgroup at smc.vnet.net
  • Subject: [mg114115] Why this can't be reduced by mathematica?!
  • From: olfa <olfa.mraihi at yahoo.fr>
  • Date: Wed, 24 Nov 2010 06:58:16 -0500 (EST)

Hi Mathematica Community,

Reduce[s==Sum[a[index], {index, i + 1, N}] - Sum[a[index], {index, j +
1, N}] &&
j >= i,{s}]

the output should be s==Sum[a[index], {index, i+1, j }]

but it is not!
Thank you.


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