English

Combinations of structures

Logic 2016-01-05 v1

Abstract

We investigate combinations of structures by families of structures relative to families of unary predicates and equivalence relations. Conditions preserving ω\omega-categoricity and Ehrenfeuchtness under these combinations are characterized. The notions of ee-spectra are introduced and possibilities for ee-spectra are described.

Keywords

Cite

@article{arxiv.1601.00041,
  title  = {Combinations of structures},
  author = {Sergey V. Sudoplatov},
  journal= {arXiv preprint arXiv:1601.00041},
  year   = {2016}
}
R2 v1 2026-06-22T12:21:18.420Z