Adjoint interpretations of sentential calculi

Studia Logica 41 (4):359 - 374 (1982)
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The aim of this paper is to give a general background and a uniform treatment of several notions of mutual interpretability. Sentential calculi are treated as preorders and logical invariants of adjoint situations, i.e. Galois connections are investigated. The class of all sentential calculi is treated as a quasiordered class.Some methods of the axiomatization of the M-counterparts of modal systems are based on particular adjoints. Also, invariants concerning adjoints for calculi with implication are pointed out. Finally, the notion of interpretability is generalized so that it may be applied to closure spaces as well.



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Allgemeine Logische und Mathematische Theorien.Jerzy Kotas & August Pieczkowski - 1970 - Mathematical Logic Quarterly 16 (6):353-376.
Logical systems with implications.Jerzy Kotas - 1971 - Studia Logica 28 (1):101 - 117.

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