We develop an algebraic model for recognizing languages of words indexed by countable linear orderings. This notion of recognizability is effectively equivalent to definability in monadic second-order (MSO) logic. The proofs also imply the first known collapse result for MSO logic over countable linear orderings. © 2011 Springer-Verlag.
CITATION STYLE
Carton, O., Colcombet, T., & Puppis, G. (2011). Regular languages of words over countable linear orderings. In Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics) (Vol. 6756 LNCS, pp. 125–136). https://doi.org/10.1007/978-3-642-22012-8_9
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