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Amzi Prolog becomes open source

amzi.com

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Re: Amzi Prolog becomes open source

#2

Post by B1FF_PSUVM »

MIT license [edit: for v10]: https://github.com/AmziLS/apls/blob/master/license.txt

[edit: for v9] Not too sure how that fits with the restrictions in the download page, http://www.amzi.com/AmziPrologLogicServer/store.php

But I do get a small itch to try the http://www.amzi.com/AdventureInProlog/advtop.php

""" Adventure in Prolog ™ — Prolog Tutorial

A full tutorial for learning Prolog, using an interactive fiction game for it's basic example. In the course of the tutorial you will also build an expert system and a business application. """

Re: Amzi Prolog becomes open source

#3

Post by mindcrime »

B1FF_PSUVM wrote: post #2

MIT license [edit: for v10]: https://github.com/AmziLS/apls/blob/master/license.txt [edit: for v9] Not too sure how that fits with the restrictions in the download page, http://www.amzi.com/AmziPrologLogicServer/store.php But I do get a small itch to try the http://www.amzi.com/AdventureInProlog/advtop.php """ Adventure in Prolog ™ — Prolog Tutorial A full tutorial for learning Prolog, using an interactive fiction ga…

Not too sure how that fits with the restrictions in the download page

Looks like a standard case of "the source is OSS and you can use it for free if you build from source, but if you want pre-built binaries, you have to buy them from us". That's basically what Red Hat does with RHEL... you can get the source and build yourself, or you can buy RHEL binaries from them (for the sake of argument, for the moment lets forget about support and indemnification and all the 'other' stuff buying a subscription gets you).

Of course, one difference with RHEL is that there's a vibrant community of people who take the RHEL source and rebuild it and release things like CentOS. Presumably you could do the same kind of thing with the Amzi source, so long as you respect their trademarks and what-not.

Re: Amzi Prolog becomes open source

#4

Post by nickmain »

B1FF_PSUVM wrote: post #2

MIT license [edit: for v10]: https://github.com/AmziLS/apls/blob/master/license.txt [edit: for v9] Not too sure how that fits with the restrictions in the download page, http://www.amzi.com/AmziPrologLogicServer/store.php But I do get a small itch to try the http://www.amzi.com/AdventureInProlog/advtop.php """ Adventure in Prolog ™ — Prolog Tutorial A full tutorial for learning Prolog, using an interactive fiction ga…

I think the downloads are v9 which is still a commercial product.

  The very stable 9.x release of the software will remain as a supported commercial version.

Re: Amzi Prolog becomes open source

#5

Post by mindcrime »

nickmain wrote: post #4
B1FF_PSUVM wrote: post #2

MIT license [edit: for v10]: https://github.com/AmziLS/apls/blob/master/license.txt [edit: for v9] Not too sure how that fits with the restrictions in the download page, http://www.amzi.com/AmziPrologLogicServer/store.php But I do get a small itch to try the http://www.amzi.com/AdventureInProlog/advtop.php """ Adventure in Prolog ™ — Prolog Tutorial A full tutorial for learning Prolog, using an interactive fiction ga…

I think the downloads are v9 which is still a commercial product. The very stable 9.x release of the software will remain as a supported commercial version.

I hate to pick nits too much, but I kinda dislike when people use this kind of phrasing. "Open source" and "commercial" are not antonyms. Something can be both open source and commercial at the same time. RHEL is a good example.

I mean, I get the point they're trying to make (I think) but I wish people would be a little more precise when talking about this topic.

Re: Amzi Prolog becomes open source

#6

Post by B1FF_PSUVM »

nickmain wrote: post #4
B1FF_PSUVM wrote: post #2

MIT license [edit: for v10]: https://github.com/AmziLS/apls/blob/master/license.txt [edit: for v9] Not too sure how that fits with the restrictions in the download page, http://www.amzi.com/AmziPrologLogicServer/store.php But I do get a small itch to try the http://www.amzi.com/AdventureInProlog/advtop.php """ Adventure in Prolog ™ — Prolog Tutorial A full tutorial for learning Prolog, using an interactive fiction ga…

I think the downloads are v9 which is still a commercial product. The very stable 9.x release of the software will remain as a supported commercial version.

> the downloads are v9

Good catch, thanks. I did read that bit, and promptly overlooked it.

Re: Amzi Prolog becomes open source

#8

Post by nickpsecurity »

mindcrime wrote: post #5
nickmain wrote: post #4

Earlier quoted context omitted.

I think the downloads are v9 which is still a commercial product. The very stable 9.x release of the software will remain as a supported commercial version.

I hate to pick nits too much, but I kinda dislike when people use this kind of phrasing. "Open source" and "commercial" are not antonyms. Something can be both open source and commercial at the same time. RHEL is a good example. I mean, I get the point they're trying to make (I think) but I wish people would be a little more precise when talking about this topic.

I agree. I posted an essay on Schneier's blog countering the false dilemma between open source and proprietary. I'm modifying next version to say "shared source" as "open source" has specific meanings. Yet, many needs can be met with shared-source, proprietary software that are thought to be OSS-only.

https://www.schneier.com/blog/archives/2014/05/friday_squid_...

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