Cover
Copyright
Preface
Organization
Contents
The Completeness Problem for Modal Logic
1 Introduction
2 Background
2.1 Modal Logic
2.2 Bisimulation
2.3 The Complexity of Satisfiability
3 The Completeness Problem and Axiom 5
4 The Completeness Problem and Triviality
4.1 Completeness and K
4.2 Completeness and Consistency
4.3 Completeness, Consistency, and Positive Introspection
4.4 Consistency and Negative Introspection
4.5 Completeness and Modal Logics
5 The Complexity of Completeness
5.1 A Lower Bound
5.2 Upper Bounds
6 Variations and Other Considerations
6.1 Satisfiable and Complete Formulas
6.2 Completeness with Respect to a Model
6.3 Completeness and Normal Forms for Modal Logic
6.4 Completeness up to Depth
6.5 More Logics
References
Justification Awareness Models
1 Context and Motivations
2 Preliminaries
3 Generic Logical Semantics of Justifications
4 Basic Justification Logic J-
4.1 Other Justification Logics
4.2 Sharp Models
5 Justification Awareness
5.1 Justification Awareness Models
5.2 Single-Conclusion Justifications
6 Russell Scenario as a JAM
6.1 Technicalities of the Model
6.2 Can Russell's Scenario Be Made Modal?
7 Kripke Models and Master Justification
8 Discussion
References
A Minimal Computational Theory of a Minimal Computational Universe
1 Introduction
2 Preliminaries
2.1 The Framework
2.2 Computational Theories and Universes
3 Static Extensions by Definitions
4 Real Analysis in J2
4.1 The Natural Numbers
4.2 The Real Line
4.3 Real Functions
5 Conclusion and Further Research
References
A Sequent-Calculus Based Formulation of the Extended First Epsilon Theorem
1 Introduction
2 Hilbert's Extended First -Theorem in a Modern Setting
3 A Function Variable Variant of / -Proofs
4 A Sequent-Based Translation into the Function Variable Proof Format
5 A New Version of the Extended First -Theorem
6 Complexity Analysis
7 Conclusion
References
Angluin Learning via Logic
1 Introduction
1.1 What the Algorithm Learns
1.2 Means to Learn
1.3 Related Work
2 Preliminaries
2.1 Coalgebra
2.2 Coalgebraic Modal Logic
2.3 Logical Quotients
3 The Lco Algorithm
3.1 Filtrations and Logical Tables
3.2 Description of the Algorithm
3.3 Termination and Correctness
3.4 Termination Lemmas
4 Examples
5 Conclusions
References
A Universal Algebra for the Variable-Free Fragment of RC
1 Introduction
2 Strictly Positive Logics and Reflection Calculi
2.1 Normal Strictly Positive Logics
2.2 Algebraic Semantics
2.3 The System RC
2.4 The System RC and Fat Normal Forms
3 Ignatiev Frame and Ignatiev RC-Algebra
4 I as the Algebra of Variable-Free RC-Theories
5 A Universal Kripke Frame for RC
References
A Logic of Blockchain Updates
1 Introduction
2 A Simple Blockchain Logic
3 The Deductive System BCL
4 Soundness
5 Normal Form
6 Completeness
7 Conclusion
References
From Display to Labelled Proofs for Tense Logics
1 Introduction
2 Display and Labelled Calculi for Tense Logics
2.1 Display Calculi for Tense Logics
2.2 Labelled Calculi for Tense Logics
3 Interpreting a Display Sequent as a Labelled UT
4 From Labelled UTs to Labelled Sequents
5 Labelled UTs vs Labelled Sequents
References
Notions of Cauchyness and Metastability
1 Almost Cauchyness
2 Metastability
3 Choice Is Necessary
References
A Gödel-Artemov-Style Analysis of Constructible Falsity
1 Introduction
1.1 The Logic of Constructible Falsity
1.2 Artemov's Program of Justification Logic
2 Constructible Falsity and Two Modal Companions
2.1 The Basic System of Constructible Falsity N
2.2 Bi-modal Logics S42 and S42Triv
2.3 Two Faithful Translations of N
3 Two-Agent Logics of Proof and N
3.1 Two-Agent LP with Conversions
3.2 Interpreting N in LP2"3222378 "3222378
4 Preliminary Remarks on Heyting-Brouwer Logic
References
Probabilistic Reasoning About Simply Typed Lambda Terms
1 Introduction
2 Simple Type Assignment
2.1 Lambda Terms and Types
2.2 Lambda Models
3 Probabilistic Logical System for Simply Typed Lambda Terms P
3.1 Syntax of P
3.2 Semantics of P
4 The Axiomatization AxP
5 Completeness
6 Conclusion
References
Polyteam Semantics
1 Introduction
2 From Uni-dependencies to Poly-dependencies
2.1 Dependencies in Team Semantics
2.2 The Notion of Poly-dependence
2.3 A General Notion of a Poly-dependency
2.4 Database Dependencies as Poly-atoms
3 Polyteam Semantics for Complex Formulae
3.1 Syntax and Semantics
3.2 Basic Properties
3.3 Data Exchange in the Polyteam Setting
4 Expressiveness
4.1 Uni-dependencies in Polyteam Semantics
4.2 Poly-dependencies in Polyteam Semantics
5 Conclusion
References
On the Sharpness and the Single-Conclusion Property of Basic Justification Models
1 Introduction
2 Preliminaries
2.1 Basic Justification Models
2.2 Unification
3 Referential Justification Logic Jref
4 Completeness
References
Founded Semantics and Constraint Semantics of Logic Rules
1 Introduction
2 Motivation for Founded Semantics and Constraint Semantics
3 Language
4 Formal Definition of Founded Semantics and Constraint Semantics
5 Properties of Founded Semantics and Constraint Semantics
6 Comparison with Other Semantics
7 Computational Complexity and Extensions
8 Related Work and Conclusion
A Comparison of Semantics for Well-Known Small Examples and More
References
Separating the Fan Theorem and Its Weakenings II
1 Introduction
2 Kripke Structures of Constructive Models
3 FAN Does Not Imply FANc
References
Dialectica Categories for the Lambek Calculus
1 Introduction
2 Related Work
3 The Lambek Calculus
4 Extensions to the Lambek Calculus
5 Categorical Models
5.1 Dialectica Lambek Spaces
6 Type Theory for Lambek Systems
6.1 The Typed Lambek Calculus: L
6.2 The Typed Lambek Calculus: L!
6.3 The Typed Lambek Calculus: L
6.4 The Typed Lambek Calculus: L!
7 Conclusions
References
From Epistemic Paradox to Doxastic Arithmetic
1 Introduction
2 Moore's Paradox
3 The Gödel-Buridan Paradox
4 Moore, Gödel-Buridan, and Dual Moore
5 The Dual Moore
6 The Commissive Moore
7 Doxastic Arithmetic
8 Conclusions
References
A Natural Proof System for Herbrand's Theorem
1 Introduction
2 Expansion Proofs
3 Proof Systems
3.1 Motivation for the Proof Systems
3.2 Open Deduction
3.3 KSh1 and Herbrand Proofs
3.4 KSh2 and Herbrand Normal Form
4 Translations Between KSh2 and Expansion Proofs
4.1 KSh2 to Expansion Proofs
5 Further Work
References
Metastability and Higher-Order Computability
1 Introduction
2 Background and Preliminaries
2.1 Introduction
2.2 The Textbook Example of Metastability
2.3 The Special Fan Functional
2.4 Nonstandard Analysis and Its Computational Content
3 Metastability and Computability
3.1 The Intermediate Value Theorem
3.2 On Maxima, Suprema, and Integrals
3.3 The Principle BD-N
3.4 Computing the Special Fan Functional
References
The Completeness of BCD for an Operational Semantics
1 Introduction
2 Beth Models
References
A Tableau System for Instantial Neighborhood Logic
1 Instantial Neighborhood Logic
2 Tableau System Tinl
3 Termination of Proof-Search in Tinl
4 Soundness of Tinl
5 Completeness of Tinl
6 Conclusions and Discussions
References
Interpretations of Presburger Arithmetic in Itself
1 Introduction
2 Presburger Arithmetic and Definable Sets
3 Interpretations
4 Linear Orders Interpretable in (N,+)
4.1 Functions Definable in Presburger Arithmetic
4.2 Dimension
4.3 Presburger-Definable Linear Orders
5 One-Dimensional Self-interpretations and Visser's Conjecture
6 Multi-dimensional Self-interpretations
References
Author Index