Continuum many maximal consistent normal bimodal logics with inverses

The paper considers extensions of a normal bimodal logic KL in which the two necessity operators are mutual one-sided inverses. A continuum of maximal consistent normal extensions of KL is constructed, each of which has infinitely many quasi-normal Post complete extensions. Some syntactic properties...

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Bibliografische gegevens
Hoofdauteur: Williamson, T
Andere auteurs: University of Notre Dame
Formaat: Journal article
Taal:English
Gepubliceerd in: Duke University Press 1998
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Omschrijving
Samenvatting:The paper considers extensions of a normal bimodal logic KL in which the two necessity operators are mutual one-sided inverses. A continuum of maximal consistent normal extensions of KL is constructed, each of which has infinitely many quasi-normal Post complete extensions. Some syntactic properties of maximal consistent normal bimodal logics and in particular of such extentions of KL are investigated.