00990nam--2200349---450-99000107048020331620020417155101.0000107048USA01000107048(ALEPH)000107048USA0100010704820020417d1982----km-y0itay0103----baengDE||||||||001yyProper forcingSaharon ShelahBerlinSpringer verlag1982XXIX, 496 p.24 cmLecture notes in mathematics9402001Lecture notes in mathematics940511.42SHELAH,Saharon0ITsalbcISBD990001070480203316510 LNM 9409792 CBS51000110043BKSCIPATTY9020020417USA011547PATTY9020020417USA011551PATRY9020040406USA011714Proper forcing979443UNISA