On December 2006, I used a Creative Commons contract known as "The Founder's Copyright" (no longer active).  With it, I agreed with Creative Commons Corporation to give them the copyright of The Relation between Formal Science and Natural Science, while they exclusively license me the book.  Under this program the copyright will last for 14 years, which could be renewed by another 14 years, to then be released to the public domain.  This means that the copyright of this book will last until December 2020.

I am sublicensing this book under a restrictive Creative Commons license for two reasons:  I have a commercial interest in this book, and, since this is not an artistic work but the result of a personal philosophical research, it would be inappropriate to publish it under a license which would allow modification.  However, I do believe that digital files should be copied non-commercially in cases like this.  I do consider copyright as a way to regulate industry, not as a way to regulate people.  For this reason, I publish my book under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 Unported License:

You are free to copy, distribute and transmit the work under the following conditions:  You must attribute the work in the manner specified by the author or licensor (but not in any way that suggests that they endorse you or your use of the work); you may not use this work for commercial purposes; you may not alter, transform, or build upon this work.   Any of the above conditions can be waived if you get permission from the copyright holder.  Where the work or any of its elements is in the public domain under applicable law, that status is in no way affected by the license.  In no way are any of the following rights affected by the license:  your fair dealing of fair use rights, or other applicable copyright exceptions and limitations; the author's moral rights; rights other persons may have either in the work itself or in how the work was used, such as publicity or privacy rights.  For any reuse or distribution, you must make clear to others the license terms of this work.

The cover of the book is a derived work from Frank Schoep's "Aurora" wallpaper created for the KDE desktop environment (here is the original SVG version) which was released under the GNU General Public License or later.  Later, when the fourth edition of the book is published, all of the components of the wallpaper, including the modifications, will be available for download.  It will be released under the GNU GPLv3 or later, and it complies with the definitions of Free Cultural Works and Open Knowledge.



Defective by Design
Free Software Foundation

 The license under which this book is published, lets you freely copy and modify the work in a copylefted manner.  However, the license also states that when you distribute or publicly perform this work in original or modified form, you cannot impose any technological measure that restricts the ability of a recipient of this work to exercise the rights granted to that recipient under the terms of the license.  Do not use Digital Restriction Management (DRM).  Visit the Defective by Design and the Free Software Foundation websites for more information.