Re: [External] : Re: Indentation with spaces

[Emanuel Berg]

tomas wrote:

> This comes from the first serious steps in AI, where "expert
> systems" were built Prolog-style: you have a database of
> "facts" (basically simple clauses) and inference rules

I know, it's a state machine, the states are questions and the
given answer leads to a new state, and so on, and when you're
done (state with no outgoing arrows), then that's state isn't
a question but an answer to the original question.

Such systems are all over the net, Image Google "Do I have
ME/CFS (PEM)?" for example for some charts, but to be safe,
promise me to answer NO at the very first question!

> Under the closed-world assumption (IMO a better name than
> "hypothesis") the system can try to prove its contrary, i.e.
> to pull off a proof by contradiction. Otherwise, "I don't
> know" becomes a possible answer. Just another way to state
> that you assume that your facts database is complete.

Hm ... ?

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