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Regular version of the site

Article

Nested Sequents for Provability Logic GLP

Logic Journal of the IGPL. 2015. Vol. 23. No. 5. P. 789-815.

We present a proof system for the provability logic GLP in the formalism of nested sequents and prove the cut elimination theorem for it. As an application, we obtain the reduction of GLP to its important fragment called J syntactically.