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» Logics with an existential modality
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IGPL
2010
156views more  IGPL 2010»
15 years 2 months ago
Fusion of sequent modal logic systems labelled with truth values
Fusion is a well-known form of combining normal modal logics endowed with a Hilbert calculi and a Kripke semantics. Herein, fusion is studied over logic systems using sequent calc...
João Rasga, Karina Roggia, Cristina Sernada...
JOLLI
2008
83views more  JOLLI 2008»
15 years 4 months ago
Inessential Features, Ineliminable Features, and Modal Logics for Model Theoretic Syntax
While monadic second-order logic (MSO) has played a prominent role in model theoretic syntax, modal logics have been used in this context since its inception. When comparing propos...
Hans-Jörg Tiede
CORR
2011
Springer
166views Education» more  CORR 2011»
14 years 11 months ago
Reduction of Many-valued into Two-valued Modal Logics
In this paper we develop a 2-valued reduction of many-valued logics, into 2-valued multi-modal logics. Such an approach is based on the contextu
Zoran Majkic
CSR
2010
Springer
15 years 9 months ago
Frameworks for Logically Classifying Polynomial-Time Optimisation Problems
We show that a logical framework, based around a fragment of existential second-order logic formerly proposed by others so as to capture the class of polynomially-bounded P-optimi...
James Gate, Iain A. Stewart
AIML
2008
15 years 5 months ago
Modal logic of time division
A logic LTD is defined, inspired by [37]. It is syntactically like basic modal logic with an additional unary operator but it has an interval-based semantics on structures with arb...
Tero Tulenheimo