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Proof Theory
Sequent Calculi and Related Formalisms




ISBN 9781466564664
Published August 20, 2014 by Chapman and Hall/CRC
386 Pages 13 B/W Illustrations

 
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Book Description

Although sequent calculi constitute an important category of proof systems, they are not as well known as axiomatic and natural deduction systems. Addressing this deficiency, Proof Theory: Sequent Calculi and Related Formalisms presents a comprehensive treatment of sequent calculi, including a wide range of variations. It focuses on sequent calculi for various non-classical logics, from intuitionistic logic to relevance logic, linear logic, and modal logic.

In the first chapters, the author emphasizes classical logic and a variety of different sequent calculi for classical and intuitionistic logics. She then presents other non-classical logics and meta-logical results, including decidability results obtained specifically using sequent calculus formalizations of logics.

The book is suitable for a wide audience and can be used in advanced undergraduate or graduate courses. Computer scientists will discover intriguing connections between sequent calculi and resolution as well as between sequent calculi and typed systems. Those interested in the constructive approach will find formalizations of intuitionistic logic and two calculi for linear logic. Mathematicians and philosophers will welcome the treatment of a range of variations on calculi for classical logic. Philosophical logicians will be interested in the calculi for relevance logics while linguists will appreciate the detailed presentation of Lambek calculi and their extensions.

Table of Contents

Proofs and proof theory
Proofs of all kinds
Early history of proof theory in a nutshell
Proofs as calculations

Classical first-order logic
The sequent calculus LK
An axiom system for FOL
Equivalence of LK and K
Interpretations, soundness and completeness

Variants of the first sequent calculi
Intuitionistic logic and other modifications
Sequent calculi with multisets and sets
Sequent calculi with no structural rules
One-sided sequent calculi
Uniform sequent calculi
Disjunction property
Translations between classical and intuitionistic logics

Sequent calculi for non-classical logics
Associative Lambek calculus
Extensions of the associative Lambek calculus
Relevant implication and pure entailment
Non-distributive logic of relevant implication
Linear logic
Positive logic of relevant implication
Sequent calculi for modal logics
Merge calculi

Consecution calculi for non-classical logics
Non-associative Lambek calculus
Structurally free logics
More implicational relevance logics
Positive entailment logics
Calculi with multiple right-hand side

Display calculi and hypersequents
Display logics with star
Display logic for linear logic
Display logic for symmetric gaggles
Hypersequent calculi

Cut rules and cut theorems
Uniform cut theorem
Mix, multiple and single cuts
Constants and the cut
Display cut
Cut theorem via normal proofs
Cut theorem via interpretations
Analytic cut
Consequences of the cut theorem and uses of the cut rules

Some other proof systems
Natural deduction systems
Tableau systems
Resolution systems

Applications and applied calculi
Decidability
Sequent calculi for mathematical theories
Typed and labeled calculi

Appendix: Some supplementary concepts

Bibliography

Index

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Featured Author Profiles

Author - Katalin  Bimbó
Author

Katalin Bimbó

Professor, University of Alberta, Department of Philosophy
Edmonton, Alberta, Canada

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Reviews

"Katalin Bimbo is one of the leading relevance logicians in the world today and indeed one of the leading non-classical logicians in general. Her book on proof theory takes readers through standard (classical) proof theory and beyond, including proof theory for some of the most important non-classical logics. The discussion is brilliantly executed. All graduate students interested in logic should study this book and all faculty too. I plan to use the book often."
—Jc Beall, Professor of Philosophy, University of Connecticut, and Professorial Fellow, Northern Institute of Philosophy, University of Aberdeen