I can remember a GOOP example which illustrated GOOP with the use of set theory. It had VI's for subset, complement, union, intersection etc...
Unfortunately I can not find it anymore. I was wondering if anyone knows where I can.
Is it possible that you are searching the graphics exampole from the example finder (Graphics Example.vi) ?
I implemented one in GOOP (http://forums.ni.com/t5/LabVIEW/LabView-set-theory-implementation/m-p/2992659/highlight/true#M857818... I think it has all the basics. Please let me know if it's like what you're after.