In the example given here, finding "all actors that are between 6 feet and and 7 feet tall" is done through an OR as: [[Category:Actor]] [[height::>6 ft||<7 ft]]
But if I'm not awfully wrong, it should be an AND: actor is ≥ 6ft AND actor is ≤ 7ft
Ahmad is right imho, this is not the "logical" equivalent, in line with the definition of logical disjunction and conjunction. (f.e. https://en.wikipedia.org/wiki/Logical_disjunction). It has nothing to do with semantics, it's straightforward boolean algebra...
