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Hi,
I know that to create a union between two sets you use syntax such as
<set1> + <set2>
and to create the intersection of twos sets you use
<set1> * <set2>
But is there any was of combining these operators?
For instance I would like to create the intersection of sets, each of which is the union of two sets itself
e.g.
(<set1> + <set2>) * (<set3> + <set4>)
Doesn't like the parenthesis though
Any ideas?
Matt