I think Moore, David [IES] wrote: > > (defrule age > (benefit-seeking) > => > (printout t "Please enter your age (in years) " crlf) > (assert (age(read)))) > > The disappointment is that the value for "age" does not appear to be one > that can subsequently be processed mathematically.
This should work fine; you would end up with a fact (age 37), where 37 is an INTEGER. (read) tokenizes its input exactly as if it were parsing Jess source code. > I would like a subsequent > rule to have in its left hand side the condition that age is less than 70, > but can't get this to happen. Would look like (defrule less-than-70 (age ?a&:(< ?a 70)) => ; .. whatever ) --------------------------------------------------------- Ernest Friedman-Hill Science and Engineering PSEs Phone: (925) 294-2154 Sandia National Labs FAX: (925) 294-2234 PO Box 969, MS 9012 [EMAIL PROTECTED] Livermore, CA 94550 http://herzberg.ca.sandia.gov -------------------------------------------------------------------- To unsubscribe, send the words 'unsubscribe jess-users [EMAIL PROTECTED]' in the BODY of a message to [EMAIL PROTECTED], NOT to the list (use your own address!) List problems? Notify [EMAIL PROTECTED] --------------------------------------------------------------------
