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Date: Sun, 21 Jul 2002 00:00:50 -0400
To: sipb@mit.edu
From: "Carlos I. Ortiz" <ciortiz@MIT.EDU>
Subject: concerning my last emails and my request to guarantee free
  software
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Again, thank you for your support (for my meager, simple-minded math 
practice program). The FSF site identified what I needed to do to protect 
my program from property acquisition and commercial use: COPYLEFTing it. I 
would like to thank the SIPB rep. who told me a/b the website, and this is 
the link in which I found out a/b this:

<http://www.gnu.org/copyleft/copyleft.html>

Sincerely,

Carlos Ortiz

p.s. i think that this kind of information should be easily available to 
all interested in commercial-proprietary free software development, since 
simply placing software in the public domain cannot prevent such use of 
originally-intended-for-free software.