TY - BOOK ID - 136361622 TI - Proper and improper forcing PY - 1998 PB - [Place of publication not identified] Springer DB - UniCat KW - Forcing (Model theory) KW - Axiomatic set theory UR - https://www.unicat.be/uniCat?func=search&query=sysid:136361622 AB - ER -