Some notes on embeddings, projections, and Easton’s lemma
Some notes on embeddings, projections, and Easton’s lemma
Author(s): Šárka StejskalováSubject(s): Philosophy, Metaphysics, Epistemology, Logic, Philosophy of Science
Published by: Univerzita Karlova v Praze, Nakladatelství Karolinum
Keywords: forcing; forcing notion; dense embedding; regular embedding; complete embedding; projection; chain condition; closure
Summary/Abstract: 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.
Journal: Acta Universitatis Carolinae Philosophica et Historica
- Issue Year: XXVIII/2022
- Issue No: 1
- Page Range: 57-75
- Page Count: 19
- Language: English
