Results 31 to 40 of about 1,151,417 (307)

On Argumentation Logic and Propositional Logic

open access: yesStudia Logica: An International Journal for Symbolic Logic, 2017
This paper studies the relationship between Argumentation Logic (AL), a recently defined logic based on the study of argumentation in AI, and classical Propositional Logic (PL). In particular, it shows that AL and PL are logically equivalent in that they
A. Kakas, P. Mancarella, Francesca Toni
semanticscholar   +1 more source

Sequent calculus for propositional likelihood logic

open access: yesLietuvos Matematikos Rinkinys, 2023
There is not abstract.
Romas Alonderis
doaj   +3 more sources

Schema Complexity in Propositional-Based Logics

open access: yesMathematics, 2021
The essential structure of derivations is used as a tool for measuring the complexity of schema consequences in propositional-based logics. Our schema derivations allow the use of schema lemmas and this is reflected on the schema complexity.
Jaime Ramos   +2 more
doaj   +1 more source

Formal Logic for Informal Logicians

open access: yesInformal Logic, 2008
Classical logic yields counterintuitive results for numerous propositional argument forms. The usual alternatives (modal logic, relevance logic, etc.) generate counterintuitive results of their own. The counterintuitive results create problems—especially
David Sherry
doaj   +1 more source

The Complexity of Reasoning for Fragments of Default Logic [PDF]

open access: yes, 2009
Default logic was introduced by Reiter in 1980. In 1992, Gottlob classified the complexity of the extension existence problem for propositional default logic as $\SigmaPtwo$-complete, and the complexity of the credulous and skeptical reasoning problem as
A.L. Selman   +15 more
core   +4 more sources

A Neighbourhood Semantics for the Logic TK

open access: yesPrincipia: An International Journal of Epistemology, 2011
The logic TK was introduced as a propositional logic extending the classical propositional calculus with a new unary operator which interprets some conceptions of Tarski’s consequence operator. TK-algebras were introduced as models to TK.
Hércules de Araújo Feitosa   +1 more
doaj   +3 more sources

On the Expressive Power of Sub-Propositional Fragments of Modal Logic [PDF]

open access: yesElectronic Proceedings in Theoretical Computer Science, 2016
Modal logic is a paradigm for several useful and applicable formal systems in computer science. It generally retains the low complexity of classical propositional logic, but notable exceptions exist in the domains of description, temporal, and spatial ...
Davide Bresolin   +2 more
doaj   +1 more source

Reasoning about Minimal Belief and Negation as Failure

open access: yes, 2011
We investigate the problem of reasoning in the propositional fragment of MBNF, the logic of minimal belief and negation as failure introduced by Lifschitz, which can be considered as a unifying framework for several nonmonotonic formalisms, including ...
Rosati, R.
core   +1 more source

Well structured program equivalence is highly undecidable [PDF]

open access: yes, 2011
We show that strict deterministic propositional dynamic logic with intersection is highly undecidable, solving a problem in the Stanford Encyclopedia of Philosophy. In fact we show something quite a bit stronger.
Balbiani P.   +4 more
core   +1 more source

Are the Validities of Modal Logic Analytic? Or Analyticity Again, through Information, Proof, Modal Logic and Hintikka

open access: yesPhilosophia Scientiæ, 2015
In Hintikka's philosophy the notion of analyticity occupies a special place (e.g., [Hintikka 1973], [Hintikka 2007]); in particular, the Finnish thinker distinguishes two notions of analyticity—one based on the concept of information, the other on the ...
Francesca Poggiolesi
doaj   +1 more source

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