[sage-devel] Re: licenses for sage-enhanced books to be eventually included in Sage

2010-01-05 Thread Robert Dodier
On Dec 29 2009, 8:35 pm, Jason Grout jason-s...@creativetrax.com wrote: I'm posting this to (1) share what I've learned by reading a lot over the last little while, and (2) ask for advice from people that have thought a lot about licensing of books and notes. When I've written documentation

[sage-devel] Re: licenses for sage-enhanced books to be eventually included in Sage

2010-01-05 Thread Jason Grout
Robert Dodier wrote: On Dec 29 2009, 8:35 pm, Jason Grout jason-s...@creativetrax.com wrote: I'm posting this to (1) share what I've learned by reading a lot over the last little while, and (2) ask for advice from people that have thought a lot about licensing of books and notes. When I've

Re: [sage-devel] Re: licenses for sage-enhanced books to be eventually included in Sage

2010-01-04 Thread Dan Drake
Okay, I'm late to this party, but I'm very interested in this issue, as I have plans to write a book that would be licensed under something like GFDL or CC by-sa. On Tue, 29 Dec 2009 at 10:24PM -0700, Jason Grout wrote: So it still seems that GFDL has some sort of requirement about distributing

[sage-devel] Re: licenses for sage-enhanced books to be eventually included in Sage

2010-01-04 Thread Jason Grout
Dan Drake wrote: I think I would be very happy if I wrote my book and someone else wanted to include a version of one of the chapters into their own work, even if that work otherwise used ordinary copyright, and if readers of the new book didn't have access to Transparent copies, or if they

[sage-devel] Re: licenses for sage-enhanced books to be eventually included in Sage

2009-12-30 Thread Rob Beezer
A few comments based on having thought carefully about this for a few years now. 1. The preamble of the GNU Free Documentation License (GFDL) from the Free Software Foundation (home of the GPL) says: The purpose of this License is to make a manual, textbook, or other functional and useful

Re: [sage-devel] Re: licenses for sage-enhanced books to be eventually included in Sage

2009-12-30 Thread Robert Bradshaw
On Dec 29, 2009, at 9:24 PM, Jason Grout wrote: William Stein wrote: The major difference I see between GFDL and CC-by-sa is that CC-by- sa does not have the requirement that the source be distributed with the work. The statement you just made above about GFDL is false. The relevant

Re: [sage-devel] Re: licenses for sage-enhanced books to be eventually included in Sage

2009-12-30 Thread David Joyner
On Wed, Dec 30, 2009 at 12:06 AM, Jason Grout jason-s...@creativetrax.com wrote: David Joyner wrote: On Tue, Dec 29, 2009 at 10:35 PM, Jason Grout jason-s...@creativetrax.com wrote: ... I guess the situation changes if some example code from the document is actually incorporated into Sage.

[sage-devel] Re: licenses for sage-enhanced books to be eventually included in Sage

2009-12-30 Thread Jason Grout
David Joyner wrote: On Wed, Dec 30, 2009 at 12:06 AM, Jason Grout jason-s...@creativetrax.com wrote: David Joyner wrote: On Tue, Dec 29, 2009 at 10:35 PM, Jason Grout jason-s...@creativetrax.com wrote: I guess the situation changes if some example code from the document is

[sage-devel] Re: licenses for sage-enhanced books to be eventually included in Sage

2009-12-30 Thread Jason Grout
Robert Bradshaw wrote: On Dec 29, 2009, at 9:24 PM, Jason Grout wrote: William Stein wrote: The major difference I see between GFDL and CC-by-sa is that CC-by- sa does not have the requirement that the source be distributed with the work. The statement you just made above about GFDL

[sage-devel] Re: licenses for sage-enhanced books to be eventually included in Sage

2009-12-30 Thread Adam Webb
I never really thought about this distinction--I wish there was   something like CC-by-sa-src as well. Source doesn't make as much sense   for a photo, but for something like a LaTeX document or a vector   graphic it is very valuable--almost an essential part of the share   alike idea.

[sage-devel] Re: licenses for sage-enhanced books to be eventually included in Sage

2009-12-29 Thread kcrisman
 They are very confusing. Yes. I have a different question about this - would such things be distributed only in source form, or also in compiled (.pdf?) form? I could imagine this eventually adding a very large amount to the download, if Sage and/or the CCLI grant application are as

[sage-devel] Re: licenses for sage-enhanced books to be eventually included in Sage

2009-12-29 Thread Jason Grout
David Joyner wrote: On Tue, Dec 29, 2009 at 10:35 PM, Jason Grout jason-s...@creativetrax.com wrote: I'm posting this to (1) share what I've learned by reading a lot over the last little while, and (2) ask for advice from people that have thought a lot about licensing of books and notes.

[sage-devel] Re: licenses for sage-enhanced books to be eventually included in Sage

2009-12-29 Thread kcrisman
I have a different question about this - would such things be distributed only in source form, or also in compiled (.pdf?) form? Yes to the statement on each side of your or conjunction, in the sense that the answer depends on which download you're talking about. The source tarball?  The

[sage-devel] Re: licenses for sage-enhanced books to be eventually included in Sage

2009-12-29 Thread Jason Grout
William Stein wrote: The major difference I see between GFDL and CC-by-sa is that CC-by-sa does not have the requirement that the source be distributed with the work. The statement you just made above about GFDL is false. The relevant statement in the GFDL is: If you publish or distribute

[sage-devel] Re: licenses for sage-enhanced books to be eventually included in Sage

2009-12-29 Thread Jason Grout
Jason Grout wrote: David Joyner wrote: On Tue, Dec 29, 2009 at 10:35 PM, Jason Grout jason-s...@creativetrax.com wrote: GFDL and CC-by-sa are not compatible with GPL, so if I wanted the notes to be distributed with Sage (so the examples turn into doctests, etc.), if I went with (1) or (2),