00734nam0-22002651i-450-99000466320040332120080228090617.0000466320FED01000466320(Aleph)000466320FED0100046632019990604d1967----km-y0itay50------baitay-------001yyFormal logicIts scope and limitsRichard JeffreyNew YorkMcGraw-Hill books Companyc1967XII, 238 p.22 cmJeffrey,Richard45068ITUNINARICAUNIMARCBK990004663200403321P.1 L 73ST.FIL.2686FLFBCFLFBCFormal logic553304UNINA