Flavio

Hi Gary, I'm sorry if you have already posted it, but is there any roadmap to implement the backward chaining in this CLIPS distribution? I saw some implementations, such as Huyck's Implementation (http://www.cwa.mdx.ac.uk/bis2040/backchain/backchain.html), design examples (https://www.csie.ntu.edu.tw/~sylee/courses/clips/design.htm), and an ancient extended CLIPS implementation published by Peter V. Homeier and Thach C. Le (http://ftp.cs.ucla.edu/pub/homeier/papers/eclips.pdf). Moreover, do you...

It worked! Thanks.

Hi All, When I try to run the auto.clp example, I got the failed message described bellow. Defining deffunction: ask-question [EXPRNPSR3] auto.clp, Line 22: Missing function declaration for 'member'. ERROR: (deffunction MAIN::ask-question (?question $?allowed-values) (printout t ?question) (bind ?answer (read)) (if (lexemep ?answer) then (bind ?answer (lowcase ?answer))) (while (not (member Am I missing something? Flávio.