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You’re technically correct, and I think set theory is a very productive metaphor for the analysis. But that analysis with GPL hasn’t worked out so cleanly, howe
by kemitchell 7y ago
You’re technically correct, and I think set theory is a very productive metaphor for the analysis. But that analysis with GPL hasn’t worked out so cleanly, however, due to its complexity. Even GPLv2 is a relatively long license. It attempts to spell out copyleft in relatively low-level terms, legally speaking. Add on additional cleverness, like anti-TiVo and liberty-or-death, and it becomes very hard to say where the boundaries are, or to compare them to less idiosyncratic licenses.
- belorn 7y agoIt is fair to say that a complex description of permissions is harder to define and compare than a simple description. GPLv3 attempts to be international interpreted across different copyright laws and to a degree different languages, which makes the job even harder. But it also fair to point out that the basic permissions are fairly simple. Give the recipient source code of the whole work, put it under the same license, don't do something which a judge would deem as circumventing the authors intention of giving you those permissions. The above simplified version of copyleft would likely work fine, although I suspect every lawyer on the globe would hate it.
- kemitchell 7y ago> The above simplified version of copyleft would likely work fine, although I suspect every lawyer on the globe would hate it. I’m familiar with several who do not!