We propose an extension of the Gentzen sequent calculus in order to deal with modalities. We extend the notion of a sequent, obtaining what we call a 2-sequent. For the calculus obtained we prove a cut elimination theorem.

2-sequent calculus: a proof theory of modalities

MASINI, Andrea
1992-01-01

Abstract

We propose an extension of the Gentzen sequent calculus in order to deal with modalities. We extend the notion of a sequent, obtaining what we call a 2-sequent. For the calculus obtained we prove a cut elimination theorem.
1992
Proof Theory; Modal Logic; logics
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11562/430356
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