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Weakly maximal decidable structures

  • Alexis Bès (a1) and Patrick Cégielski (a1)

Abstract

We prove that there exists a structure M whose monadic second order theory is decidable, and such that the first-order theory of every expansion of M by a constant is undecidable. 


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Weakly maximal decidable structures

  • Alexis Bès (a1) and Patrick Cégielski (a1)

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