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MathGroup Archive 2005

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Problem with matching.

  • To: mathgroup at
  • Subject: [mg53907] Problem with matching.
  • From: Josef Karthauser <joe at>
  • Date: Wed, 2 Feb 2005 18:10:51 -0500 (EST)
  • Sender: owner-wri-mathgroup at

Can someone tell me why this doesn't match?

F[{x, 2, c}]F[{x, 1, f}] /. F[{___, a_, ___}]F[{___, a_, ___}] :> yes

I'm expecting 'yes' to be returned if any of the list arguments to F[]
contain the same value.  It doesn't match however; what am I doing

Josef Karthauser (joe at
FreeBSD (cvs meister, admin and hacker)
Physics Particle Theory (student)
================ An eclectic mix of fact and theory. =================

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