The following applies to all texts in this directory.

Copyright © 2007 David Anthony SANTOS. Permission is granted to copy, 
distribute and/or modify this document under the terms of the 
GNU Free Documentation License, Version 1.2 or any later version published by
the Free Software Foundation; with no Invariant Sections, no 
Front-Cover Texts, and no Back-Cover Texts. 

Details of the GNU FDL can be found here: 
http://www.gnu.org/licenses/licenses.html

The graphics file tower-of-hanoi2.eps is a photograph taken by
David Joyner in November 2008 and I hearby release it into the 
public domain. It is included in discrete_math_lecture_notes2.pdf.