How good is your Lisp? LISA does forward chaining within CLOS, so you always have a real language on standby when you need one. JESS has Java. Prolog: what a

How good is your Lisp? LISA does forward chaining within CLOS, so you always have a real language on standby when you need one. JESS has Java. Prolog: what a frustrating language to use in the Real World and what a delightful lab language.