I think this is legalistic overkill (though, I am not a lawyer).
Unless you think AMS doesn't have permission to put this on
their ftp site, why would pointing to it be better than copying it?
The GPL is not a license to use something freely. It is a
prohibition forbidding subsequent co-authors from having any
choice about ownership of their own work.
In my testing, breqn doesn't work that well, anyway.
RJF
Jay Belanger wrote:
>Rex Dieter <rdieter@math.unl.edu> writes:
>...
>
>
>>>As it stands breqn isn't free software.
>>>
>>>
>>In the breqn094.tgz I downloaded, I see no mention of license. What makes
>>you think it not free?
>>
>>
>
>Because with no license, there is no permission to use it freely.
>Since breqn is only an option, it should probably be removed and
>replaced by a pointer of where to get it.
>
>Jay
>
>