On Tue, Jul 19, 2011 at 07:55:51PM +0200, Kim Bruning wrote:
place_of_residence= (world AND NOT middle_east) OR (israel AND NOT (west_bank OR gaza))
For people who have trouble deciphering SQL-ish language ( small letters = sets AND = Intersection OR = Union AND NOT=Intersection )
For people who Just Need A Picture, you can also express this as a venn-like diagram:
http://bruning.xs4all.nl/~kim/People_who_are_coming_to_wikimania.svg
is this indeed correct?
sincerely, Kim Bruning