I'm working through "Seven Languages in Seven Weeks" (http://www.pragprog.com/titles/btlang/seven-languages-in-seven-weeks). The inclusion of Prolog seems strange to me and I've heard very few examples of Prolog being used in the real world. Has anyone here used Prolog in production, and if so:1. What did you use it for?
2. What are your thoughts about the language? Why did you choose Prolog, and were you happy with it?
3. How does performance, development time, etc. compare to other languages?