Over forty years ago, E.P. Specker and C. Blatter discovered an astonishing meta-theorem about combinatorial counting functions definable in Monadic Second Order Logic ( \(\textrm{MSOL}\) ). In this talk we discuss extensions and limit of this theorem and its wide-ranging applications.

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The Specker-Blatter Theorem: An Application of Logic to Combinatorial Counting

  • Johann A. Makowsky

摘要

Over forty years ago, E.P. Specker and C. Blatter discovered an astonishing meta-theorem about combinatorial counting functions definable in Monadic Second Order Logic ( \(\textrm{MSOL}\) ). In this talk we discuss extensions and limit of this theorem and its wide-ranging applications.