Search for: [Subject and Keywords = upper and lower set formulas] OR [Subject and Keywords = information granules] OR [Subject and Keywords = Dempster\-Pawlak modification] OR [Subject and Keywords = fuzzy canonical formulas] OR [Title = Upper and lower set formulas\: Restriction and modification of the Dempster\-Pawlak formalism] OR [Creator = Türkşen, Ismail Burhan]