Goncharov and Peretyat'kin independently gave necessary and sufficient conditions for when a set of types of a complete theory $T$ is the type spectrum of some homogeneous model of $T$. Their result can be stated as a principle of second order arithmetic, which is called the Homogeneous Model Theorem (HMT), and analyzed from the points of view of computability theory and reverse mathematics. Previous computability theoretic results by Lange suggested a close connection between HMT and the Atomic Model Theorem (AMT), which states that every complete atomic theory has an atomic model. The authors show that HMT and AMT are indeed equivalent in the sense of reverse mathematics, as well as in a strong computability theoretic sense and do the same for an analogous result of Peretyat'kin giving necessary and sufficient conditions for when a set of types is the type spectrum of some model.
| ISBN: | 9781470426576 |
| Publication date: | 30th October 2017 |
| Author: | Denis Roman Hirschfeldt, Karen Lange, Richard A Shore |
| Publisher: | American Mathematical Society |
| Format: | Paperback |
| Pagination: | 101 pages |
| Series: | Memoirs of the American Mathematical Society |
| Genres: |
Mathematical logic Mathematical foundations |
Goncharov and Peretyat'kin independently gave necessary and sufficient conditions for when a set of types of a complete theory $T$ is the type spectrum of some homogeneous model of $T$. Their result can be stated as a principle of second order arithmetic, which is called the Homogeneous Model Theorem (HMT), and analyzed from the points of view of computability theory and reverse mathematics. Previous computability theoretic results by Lange suggested a close connection between HMT and the Atomic Model Theorem (AMT), which states that every complete atomic theory has an atomic model. The authors show that HMT and AMT are indeed equivalent in the sense of reverse mathematics, as well as in a strong computability theoretic sense and do the same for an analogous result of Peretyat'kin giving necessary and sufficient conditions for when a set of types is the type spectrum of some model.
Induction, Bounding, Weak Combinatorial Principles, and the Homogeneous Model Theorem features in the following genres: Mathematical logic, Mathematical foundations
Induction, Bounding, Weak Combinatorial Principles, and the Homogeneous Model Theorem is available in Paperback
Induction, Bounding, Weak Combinatorial Principles, and the Homogeneous Model Theorem was written by Denis Roman Hirschfeldt, Karen Lange, Richard A Shore and published by American Mathematical Society
Induction, Bounding, Weak Combinatorial Principles, and the Homogeneous Model Theorem has 101 pages
Yes it is part of Memoirs of the American Mathematical Society series