Abstract
The global consequence relation of a normal modal logic $$\Lambda $$ is formulated as a global sequent calculus which extends the local sequent theory of $$\Lambda $$ with global sequent rules. All global sequent calculi of normal modal logics admits global cut elimination. This property is utilized to show that decidability is preserved from the local to global sequent theories of any normal modal logic over $$\mathsf {K4}$$ . The preservation of Craig interpolation property from local to global sequent theories of any normal modal logic is shown by proof-theoretic method.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.