I've been struggling with trying to formulate a LHS which tries to
match the length of one of the fact's multislots with another slot.
For example:
(deftemplate foo (multislot my-list) (slot desired))
I've tried the following:
(foo (my-list ?my-list) (desired = (length$ ?my-list))
(foo { desired == (length$ my-list) } )
(foo (my-list ?my-list { desired == (length$ ?my-list) } )
And even though desired is 0 and the length of the list is 0, the rule
simply won't fire. Obviously, I'm missing something....
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