Media type: E-Article Title: Combinatorics on ideals and forcing Contributor: Grigorieff, Serge imprint: Elsevier BV, 1971 Published in: Annals of Mathematical Logic Language: English DOI: 10.1016/0003-4843(71)90011-8 ISSN: 0003-4843 Keywords: Logic Origination: Footnote: Access State: Open Access