Institutional semantics for many-valued logics

  • Authors:
  • RăZvan Diaconescu

  • Affiliations:
  • Simion Stoilow Institute of Mathematics of the Romanian Academy, Romania

  • Venue:
  • Fuzzy Sets and Systems
  • Year:
  • 2013

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Abstract

We develop many-valued logic, including a generic abstract model theory, over a fully abstract syntax. We show that important many-valued logic model theories, such as traditional first-order many-valued logic and fuzzy multi-algebras, may be conservatively embedded into our abstract framework. Our development is technically based upon the so-called theory of institutions of Goguen and Burstall and may serve as a template for defining at hand many-valued logic model theories over various concrete syntaxes or, from another perspective, to combine many-valued logic with other logical systems. We also show that our generic many-valued logic abstract model theory enjoys a couple of important institutional model theory properties that support the development of deep model theory methods.