2、gCo.,Dorcrecht,NetherlandsandBoston,USA,1972)Revisedandenlargededitionlirstpublished1980Paperbackedition1981Reprinted1984,1986,1988,1990BasilBlackwellLtd108CowleyRoad,OxfordOX4UF,UKAllrightsreserved.Nopartofthispublicationmaybereproduced,storedinaretrievalsystem,ortransmitted,inanyformorbyanymean
3、s,electronic,mechanical,photocopying,recordingorotherwise,withoutthepriorpermissionofBasilBlackwellLimited.ExceptintheUnitedStatesofAmerica,thisbookissoldsubjecttotheconditionthatitshallnot,bywayoftradeorotherwise,belent,re-sold,hiredout,orotherwisecirculatedwithoutthepublisher'spriorconsentinany
4、formofbindingorcoverotherthanthatinwhichitispublishedandwithoutasimilarconditionincludingthisconditionbeingimposedonthesubsequentpurchaser.BritishLibraryCala/olluinllinPublicationDataACIPcataloguerecordforthisbookisavailablefromtheBritishLibrary.ISBN0-631-10151-9ISBN0-631-12801-8PbkPrintedinGreat
5、BritainbyBilling&SonsLtd,WorcesterCONTENTSPrefaceILectureI22LectureII71LectureIII106AddendaFPREFACEOriginallyIhadintendedtoreviseoraugmentNamingandNecessityextensively.Considerabletimehaselapsed,andIhavecometorealizethatanyextensiverevisionorexpansionwoulddelaytheappearanceofaseparate,lessexpensi
6、veeditionofNamingandNecessityindefmitely.Further,asfarasrevisionisconcerned,thereissomethingtobesaidforpreservingaworkinitsoriginalform,wartsandall.Ihavethusfollowedaveryconservativepolicyofcorrectionforthepresentprinting.Obviousprintingerrorshavebeencorrected,andslightchangeshavebeenmadetomakeva
7、rioussentencesorformulationsclearer.lAgoodindicationofmyconservativepolicyisinfO'ltnote56.Inthatfootnotetheletter-nomenclaturefortheyariousobjectsinvolved,inexplicablygarbledintheoriginalprinting,hasbeencorrected;butIm