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MathGroup Archive 2003

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extracting variables from an expression

  • To: mathgroup at smc.vnet.net
  • Subject: [mg44111] extracting variables from an expression
  • From: "Peter Schinko" <Peter.Schinko at utanet.at>
  • Date: Thu, 23 Oct 2003 07:15:02 -0400 (EDT)
  • Sender: owner-wri-mathgroup at wolfram.com

Hi,

I'm looking for a function that extracts all variables from a boolean
expression.
For example:
x || y || z
should return something similar to {x, y, z}.

Is there a similar function in Mathematica? If so, how does it work?

Thanks very much
Peter



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