English

Categoricity of abstract classes with amalgamation

Logic 2016-09-07 v1

Abstract

Let K be an abstract elementary class with amalgamation, and Lowenheim Skolem number LS(K). We prove that for a suitable Hanf number chi_0 if chi_0 < lambda_0 <= lambda_1, and K is categorical in lambda^+_1 then it is categorical in lambda_0 .

Cite

@article{arxiv.math/9809197,
  title  = {Categoricity of abstract classes with amalgamation},
  author = {Saharon Shelah},
  journal= {arXiv preprint arXiv:math/9809197},
  year   = {2016}
}
R2 v1 2026-07-22T18:00:17.818Z