Not just "a definition", it's labeled Freedom Zero. The ability to run the program, for any purpose. http://www.gnu.org/philosophy/free-sw.html http://www.gnu.

Not just "a definition", it's labeled Freedom Zero. The ability to run the program, for any purpose. http://www.gnu.org/philosophy/free-sw.html http://www.gnu.org/philosophy/free-sw.html http://opensource.org/docs/osd#fields-of-endeavor http://opensource.org/docs/osd#fields-of-endeavor (The OSI's open source definition is derived from Debian's Free Software Guidelines, which includes the same prohibition against licenses banning fields of endeavor).