On 2/7/11 9:42 AM, Malcolm Wallace wrote:
To combine licences, just aggregate them. There is no lattice of subsumption; no "more" or "less" restrictive ordering. It's simple: you must obey all of them.
In the event that my comments on the previous thread were a source of confusion, I agree with the first and last sentences though the middle one is a bit more ambiguous.
Lawyers can argue about whether individual licenses as written (i.e., MIT, BSD3, GPL,...) have any interesting preorder (i.e., other than equality). But in practice distributors must adhere to sets of licenses, and these sets have the obvious lattice structure: namely Malcolm's last sentence. Again, whether this lattice has any interesting (i.e., non-free) equalities is best left up to lawyers.
-- Live well, ~wren _______________________________________________ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe
