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 |
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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