What Is The Purpose Of Copyleft?
Copyleft is a general method for making a program (or other work) free (in the sense of freedom, not “zero price”), and requiring all modified and extended versions of the program to be free as well. The simplest way to make a program free software is to put it in the public domain, uncopyrighted.
What can copyleft be applied to?
Typically a copyleft licence will allow a work to be freely copied, distributed or adapted, provided that all copies or modified versions are also freely available under the same licence. The actual word 'copyleft' has no legal meaning in itself, it is simply a play on the word 'copyright'.
P-20: Copyleft :: The UK Copyright Service
Copyleft is the practice of granting the right to freely distribute and modify intellectual property with the requirement that the same rights be preserved in derivative works created from that property.
Copyleft - Wikipedia
What is an example of copyleft?
Copyleft is a term, usually referring to a license, used to indicate that such license requires that redistribution of said work is subject to the same license as the original. Examples of copyleft licenses are the GNU GPL (for software) and the Creative Commons SA (Share Alike) licenses (for works of art).
Copyleft - MDN Web Docs Glossary: Definitions of Web-related terms
What is the importance of copyleft? Copyleft provides an incentive for creative people to improve innovations. For example, if someone composes a tune with a copyleft policy, other musicians can make changes so that you get varied and improved versions. The same applies to any other creative piece of work.
Understanding importance of Copyleft | IPTSE