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Abstract : This paper studies the concepts of definability and canonicity in Boolean logic with a binary relation. Firstly, it provides formulas defining first-order or second-order conditions on frames. Secondly, it proves that all formulas corresponding to compatible first-order conditions on frames are canonical.
Philippe Balbiani, Tinko Tinchev. Definability and canonicity for Boolean logic with a binary relation. Fundamenta Informaticae, Polskie Towarzystwo Matematyczne, 2014, vol. 129 (n° 4), pp. 301-327. ⟨10.3233/FI-2014-973⟩. ⟨hal-01120594⟩