00872nam0-22003011i-450-99000113228040332120081110133714.00720420547000113228FED01000113228(Aleph)000113228FED0100011322820001205d1971----km-y0itay50------baengModels and ultraproductsan introductionJ. L. Bell, A. B. Slomson2. rev. printAmsterdam [etc.]North-Holland1971IX, 322 p.22 cmStudies in logic and the foundations of mathematicsBell,John Lane119420Slomson,AlanITUNINARICAUNIMARCBK99000113228040332111-F-4211738MA1MA1Models and ultraproducts345363UNINA