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We survey some lesser-known facts concerning properties of embeddings and projections between forcing notions. We will also state some generalizations of Easton’s lemma. To our knowledge, many of these facts have not been published, so we include their proofs for the benefit of the reader.
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Action | Title | Date | Authors |
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A new construction of non-constructible ${Δ^1}_3$ subset of ω | 1974-01-01 | Ronald H. Jensen Håvard Johnsbråten | |
ITERATED FORCING | 1983-10-13 | James E. Baumgartner | |
Perfect-set forcing for uncountable cardinals | 1980-11-01 | Akihiro Kanamori | |
Supercompactness and failures of GCH | 2012-01-01 | Sy‐David Friedman Radek Honzík | |
The lottery preparation | 2000-02-01 | Joel David Hamkins | |
Powers of regular cardinals | 1970-01-01 | William B. Easton | |
Simple complete Boolean algebras | 2000-07-27 | Thomas Jech Saharon Shelah | |
CHAIN CONDITIONS OF PRODUCTS, AND WEAKLY COMPACT CARDINALS | 2014-09-01 | Assaf Rinot | |
Adding a closed unbounded set | 1976-06-01 | James E. Baumgartner L. A. Harrington E. M. Kleinberg | |
Proper Forcing | 2009-12-09 | Uri Abraham |