>As you say CLIPS includes an inference engine, it very close to LISP. It appears in several pages as a LISP implementation similar to C LIPS (Common Lisp).
>
>Does you know this tool?

I would say that it's very far from LISP. But I may be wrong. I knew it very well about 7-8 years ago. To be fair, I don't remember much now. :)

Maybe it's close to Lisp in the kind of applications developed with.

Vlad