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KASH3 Reference Manual


Difference_ ( set S1, list S2 )


Change `S1' so that it becomes the difference of `S1' and `S2'.
The difference is the set of the elements that are in `S1' but not in `S2'. So `Difference_' removes (see `SetRemove_') all elements from `S1' that are in `S2'.
Note: `S2' may be a list that is not a proper set, in which case `Set' is silently applied to it.

Built: Mon Nov 14 21:12:39 UTC 2005 on mack
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