In [2] Gentzen calculi for intuitionistic logic extended with an existence predicate were introduced. Such logics were first introduced by Dana Scott, who provided a proof system for it in Hilbert style. The logic seems particularly useful in settings where non constant domain Kripke models play a role. In this paper it is proved that these systems have interpolation and the Beth definability property. © Springer-Verlag Berlin Heidelberg 2005.
CITATION STYLE
Baaz, M., & Iemhoff, R. (2005). On interpolation in existence logics. In Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics) (Vol. 3835 LNAI, pp. 697–711). https://doi.org/10.1007/11591191_48
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