Results 21 to 30 of about 785,300 (287)

On the prediction of Covid-19 time series: an intuitionistic fuzzy logic approach [PDF]

open access: yesJournal of Fuzzy Extension and Applications, 2021
This paper presents a time series analysis of a novel coronavirus, COVID-19, discovered in China in December 2019 using intuitionistic fuzzy logic system with neural network learning capability. Fuzzy logic systems are known to be universal approximation
Imo Eyo, Jeremiah Eyoh, Uduak Umoh
doaj   +1 more source

Modal meet-implication logic [PDF]

open access: yesLogical Methods in Computer Science, 2022
We extend the meet-implication fragment of propositional intuitionistic logic with a meet-preserving modality. We give semantics based on semilattices and a duality result with a suitable notion of descriptive frame.
Jim de Groot, Dirk Pattinson
doaj   +1 more source

Admissible Tools in the Kitchen of Intuitionistic Logic [PDF]

open access: yesElectronic Proceedings in Theoretical Computer Science, 2018
The usual reading of logical implication "A implies B" as "if A then B" fails in intuitionistic logic: there are formulas A and B such that "A implies B" is not provable, even though B is provable whenever A is provable.
Andrea Condoluci, Matteo Manighetti
doaj   +1 more source

HH∗−intuitionistic heyting valued Ω-algebra and homomorphism [PDF]

open access: yesJournal of Hyperstructures, 2017
Intuitionistic Logic was introduced by L. E. J. Brouwer in[1] and Heyting algebra was defined by A. Heyting to formalize the Brouwer’s intuitionistic logic[4]. The concept of Heyting algebra has been accepted as the basis for intuitionistic propositional
Sinem Tarsuslu(Yılmaz)   +1 more
doaj   +1 more source

Syntactic Interpolation for Tense Logics and Bi-Intuitionistic Logic via Nested Sequents [PDF]

open access: yesAnnual Conference for Computer Science Logic, 2019
We provide a direct method for proving Craig interpolation for a range of modal and intuitionistic logics, including those containing a "converse" modality. We demonstrate this method for classical tense logic, its extensions with path axioms, and for bi-
Tim S. Lyon   +3 more
semanticscholar   +1 more source

Session Type Systems based on Linear Logic: Classical versus Intuitionistic [PDF]

open access: yesPLACES@ETAPS, 2020
Session type systems have been given logical foundations via Curry-Howard correspondences based on both intuitionistic and classical linear logic. The type systems derived from the two logics enforce communication correctness on the same class of π ...
B. V. D. Heuvel, Jorge A. P'erez
semanticscholar   +1 more source

Eskolemization in Intuitionistic Logic [PDF]

open access: yesJournal of Logic and Computation, 2009
In Baaz and Iemhoff (2006, Annals of Pure and Applied Logic, 142, 269–295), an alternative skolemization method called eskolemization was introduced that is sound and complete for existence logic with respect to existential quantifiers. Existence logic is a conservative extension of intuitionistic logic by an existence predicate.
Baaz, Matthias, Iemhoff, R.
openaire   +4 more sources

Relating Sequent Calculi for Bi-intuitionistic Propositional Logic [PDF]

open access: yesElectronic Proceedings in Theoretical Computer Science, 2011
Bi-intuitionistic logic is the conservative extension of intuitionistic logic with a connective dual to implication. It is sometimes presented as a symmetric constructive subsystem of classical logic.
Luís Pinto, Tarmo Uustalu
doaj   +1 more source

The ILLTP Library for Intuitionistic Linear Logic [PDF]

open access: yesElectronic Proceedings in Theoretical Computer Science, 2019
Benchmarking automated theorem proving (ATP) systems using standardized problem sets is a well-established method for measuring their performance. However, the availability of such libraries for non-classical logics is very limited.
Carlos Olarte   +3 more
doaj   +1 more source

Intuitionistic implication makes model checking hard [PDF]

open access: yesLogical Methods in Computer Science, 2012
We investigate the complexity of the model checking problem for intuitionistic and modal propositional logics over transitive Kripke models. More specific, we consider intuitionistic logic IPC, basic propositional logic BPL, formal propositional logic ...
Martin Mundhenk, Felix Weiss
doaj   +1 more source

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