Results 1 to 10 of about 1,151,417 (307)

Classical propositional logic and decidability of variables in intuitionistic propositional logic [PDF]

open access: yesLogical Methods in Computer Science, 2014
We improve the answer to the question: what set of excluded middles for propositional variables in a formula suffices to prove the formula in intuitionistic propositional logic whenever it is provable in classical propositional logic.
Hajime Ishihara
doaj   +6 more sources

Complexity of validity for propositional dependence logics [PDF]

open access: yesElectronic Proceedings in Theoretical Computer Science, 2014
We study the validity problem for propositional dependence logic, modal dependence logic and extended modal dependence logic. We show that the validity problem for propositional dependence logic is NEXPTIME-complete.
Jonni Virtema
doaj   +4 more sources

A modal logic amalgam of classical and intuitionistic propositional logic [PDF]

open access: yesJournal of Logic and Computation, 2015
A famous result, conjectured by G\"odel in 1932 and proved by McKinsey and Tarski in 1948, says that $\varphi$ is a theorem of intuitionistic propositional logic IPC iff its G\"odel-translation $\varphi'$ is a theorem of modal logic S4. In this paper, we
Lewitzka, Steffen
core   +2 more sources

Propositional computability logic I [PDF]

open access: yesACM Transactions on Computational Logic, 2006
In the same sense as classical logic is a formal theory of truth, the recently initiated approach called computability logic is a formal theory of computability. It understands (interactive) computational problems as games played by a machine against the environment, their computability as existence of a machine ...
Giorgi Japaridze, Lorenzen P., Turing A.
openaire   +5 more sources

Propositional Logics Complexity and the Sub-Formula Property [PDF]

open access: yesElectronic Proceedings in Theoretical Computer Science, 2015
In 1979 Richard Statman proved, using proof-theory, that the purely implicational fragment of Intuitionistic Logic (M-imply) is PSPACE-complete.
Edward Hermann Haeusler
doaj   +5 more sources

Propositional dynamic logic for searching games with errors [PDF]

open access: yesJournal of Applied Logic, 2014
We investigate some finitely-valued generalizations of propositional dynamic logic with tests. We start by introducing the (n+1)-valued Kripke models and a corresponding language based on a modal extension of {\L}ukasiewicz many-valued logic.
Bruno Teheux
exaly   +4 more sources

From Proof-theoretic Validity to Base-extension Semantics for Intuitionistic Propositional Logic [PDF]

open access: yesStudia Logica: An International Journal for Symbolic Logic, 2022
Proof-theoretic semantics (P-tS) is the approach to meaning in logic based on proof (as opposed to truth). There are two major approaches to P-tS: proof-theoretic validity (P-tV) and base-extension semantics (B-eS). The former is a semantics of arguments,
A. Gheorghiu, D. Pym
semanticscholar   +1 more source

α-Generalized Semantic Resolution Method in Linguistic Truth-valued Propositional Logic P(X) [PDF]

open access: yesInternational Journal of Computational Intelligence Systems, 2014
This paper is focused on α-generalized semantic resolution automated reasoning method in linguistic truth-valued lattice-valued propositional logic.
Jiafeng Zhang, Yang Xu, Xingxing He
doaj   +1 more source

On Quantified Propositional Logics and the Exponential Time Hierarchy [PDF]

open access: yesElectronic Proceedings in Theoretical Computer Science, 2016
We study quantified propositional logics from the complexity theoretic point of view. First we introduce alternating dependency quantified boolean formulae (ADQBF) which generalize both quantified and dependency quantified boolean formulae.
Miika Hannula   +3 more
doaj   +1 more source

On the Succinctness of Atoms of Dependency [PDF]

open access: yesLogical Methods in Computer Science, 2019
Propositional team logic is the propositional analog to first-order team logic. Non-classical atoms of dependence, independence, inclusion, exclusion and anonymity can be expressed in it, but for all atoms except dependence only exponential translations ...
Martin Lück, Miikka Vilander
doaj   +1 more source

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