Finitely generated free Heyting algebras via Birkhoff duality and
coalgebraArticleAuthors: Nick Bezhanishvili

; Mai Gehrke
0009-0005-6692-5051##NULL
Nick Bezhanishvili;Mai Gehrke
Algebras axiomatized entirely by rank 1 axioms are algebras for a functor and thus the free algebras can be obtained by a direct limit process. Dually, the final coalgebras can be obtained by an inverse limit process. In order to explore the limits of this method we look at Heyting algebras which have mixed rank 0-1 axiomatizations. We will see that Heyting algebras are special in that they are almost rank 1 axiomatized and can be handled by a slight variant of the rank 1 coalgebraic methods.
Volume: Volume 7, Issue 2
Published on: May 17, 2011
Imported on: October 5, 2010
Keywords: Computer Science - Logic in Computer Science, Mathematics - Logic, F.4.1
Funding:
Source : OpenAIRE Graph- Relational Semantics for Substructural and Other Logics; Funder: UK Research and Innovation; Code: EP/E029329/1
- Order-topological and model-theoretic methods for modal logics; Funder: UK Research and Innovation; Code: EP/F032102/1