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It's popular to embed a prolog in Lisp languages. For example Picolisp and Shen. I wrote a post comparing Shen's Prolog support to SWI Prolog recently: https://bluishcoder.co.nz/2016/08/30/kicking-the-tires-of-sh...

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Is the license for Shen still that you own a copy of Tarver's book?

There's a BSD licensed open source version, all linked from http://shenlanguage.org/download_form.html

That's what I used for my post. There's "Shen Professional" which is a closed source subscription based product getting rapid development http://shenlanguage.org/professional.html

I have not used "Shen Professional" though.

That's good news...curious if he has any customers for the professional version. I'm sure it's a great product, I'm just not aware of too many people who would depend on something that niche' for production work. Maybe niche production work :)

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