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MathGroup Archive 2002

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Simplify inequalities

  • To: mathgroup at smc.vnet.net
  • Subject: [mg35357] Simplify inequalities
  • From: "Julio Vera" <jvera at adinet.com.uy>
  • Date: Tue, 9 Jul 2002 06:50:12 -0400 (EDT)
  • Sender: owner-wri-mathgroup at wolfram.com

Hi,

I cannot find the way to simplify certain inequalities. An example could be this one:

1+y==0&&x>1/2&&x+y>=0

I have the additional condition that -1<=x<=1. Applying Simplify with this
condition, I expect the solution

1+y==0&&x-1==0

But the original set of inequalities remains the same.

I tried Expand, FunctionExpand, LogicalExpand, and some others, with no luck.

Thanks very much for any suggestion you might provide.

Best regards,

Julio Vera


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