Title
Kripke semantics and proof systems for combining intuitionistic logic and classical logic.
Abstract
We combine intuitionistic logic and classical logic into a new, first-order logic called polarized intuitionistic logic. This logic is based on a distinction between two dual polarities which we call red and green to distinguish them from other forms of polarization. The meaning of these polarities is defined model-theoretically by a Kripke-style semantics for the logic. Two proof systems are also formulated. The first system extends Gentzenʼs intuitionistic sequent calculus LJ. In addition, this system also bears essential similarities to Girardʼs LC proof system for classical logic. The second proof system is based on a semantic tableau and extends Dragalinʼs multiple-conclusion version of intuitionistic sequent calculus. We show that soundness and completeness hold for these notions of semantics and proofs, from which it follows that cut is admissible in the proof systems and that the propositional fragment of the logic is decidable.
Year
DOI
Venue
2013
10.1016/j.apal.2012.09.005
Annals of Pure and Applied Logic
Keywords
Field
DocType
03B62,03B20,03B10,03F52
Intuitionistic logic,Discrete mathematics,Proof calculus,Minimal logic,Linear logic,Cut-elimination theorem,Many-valued logic,Mathematics,Intermediate logic,Higher-order logic
Journal
Volume
Issue
ISSN
164
2
0168-0072
Citations 
PageRank 
References 
5
0.48
12
Authors
2
Name
Order
Citations
PageRank
Chuck Liang11458.70
Dale Miller22485232.26