I have a problem where I am trying to establish if a String element in a
given list A exists in another larger list B.  There are obviously a number
of ways I can do this in either Jess or in Java.  In Jess, I could use the
member$ function and iterate through the list B until I have found the
element (is there the equivalent of "break" to exit a loop in Jess).  In
Java, I could create a sorted TreeSet and use the "contains" method.

Which is the most efficient?  How are lists represented in Jess and how does
the member$ function work?

Cheers,

Brett

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