On Oct 23, 2008, at 8:05 AM, Theunissen, Teun wrote:
(modify ?f (Ernst nil) (Behandeling nil) (Ziekteverwekker nil)
(DifferentiaalDiagnostiek (create$ "Rheuma" "Brucellosis" )) ))
Should really be
(modify ?f (Ernst nil) (Behandeling nil) (Ziekteverwekker nil)
(DifferentiaalDiagnostiek "Rheuma" "Brucellosis" ) ))
although the "create" form should generally work as well. What version
of Jess is this that's giving you the error? If it's not the most
recent patch level for the version you're using, please update and try
again. If you see the error with the most recent release, please send
me a complete runnable example that shows the problem.
---------------------------------------------------------
Ernest Friedman-Hill
Informatics & Decision Sciences, Sandia National Laboratories
PO Box 969, MS 9012, Livermore, CA 94550
http://www.jessrules.com
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