Abstract
Rationals and countable ordinals are important examples of structures with decidable monadic second-order theories. A chain is an expansion of a linear order by monadic predicates. We show that if the monadic second-order theory of a countable chain C is decidable then C has a non-trivial expansion with decidable monadic second-order theory.
| Original language | English |
|---|---|
| Pages (from-to) | 593-608 |
| Number of pages | 16 |
| Journal | Journal of Symbolic Logic |
| Volume | 77 |
| Issue number | 2 |
| DOIs | |
| State | Published - Jun 2012 |
All Science Journal Classification (ASJC) codes
- Philosophy
- Logic