Results 31 to 40 of about 722,619 (215)

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   +1 more source

Towards the Integration of an Intuitionistic First-Order Prover into Coq [PDF]

open access: yesElectronic Proceedings in Theoretical Computer Science, 2016
An efficient intuitionistic first-order prover integrated into Coq is useful to replay proofs found by external automated theorem provers. We propose a two-phase approach: An intuitionistic prover generates a certificate based on the matrix ...
Fabian Kunze
doaj   +1 more source

An Investigation into Intuitionistic Logic with Identity [PDF]

open access: yes, 2019
We define Kripke semantics for propositional intuitionistic logic with Suszko’s identity (ISCI). We propose sequent calculus for ISCI along with cut-elimination theorem.
Chlebowski, Szymon   +1 more
core   +2 more sources

Proof-search of propositional intuitionistic logic sequents by means of classical logic calculus

open access: yesLietuvos Matematikos Rinkinys, 2008
In the paper, we define some classes of sequents of the propositional intuitionistic logic. These are classes of primarily and α-primarily reducible sequents. Then we show how derivability of these sequents in a propositional intuitionistic logic sequent
Romas Alonderis
doaj   +1 more source

Intuitionistic ancestral logic

open access: yesJournal of Logic and Computation, 2019
Abstract In this article we define pure intuitionistic Ancestral Logic ( iAL ), extending pure intuitionistic First-Order Logic ( iFOL ). This logic is a dependently typed abstract programming language with computational functionality beyond iFOL given by its realizer for the transitive closure, TC .
Liron Cohen 0001, Robert L. Constable
openaire   +2 more sources

Intuitionistic quantum logic of an n-level system [PDF]

open access: yes, 2009
A decade ago, Isham and Butterfield proposed a topos theoretic approach to quantum mechanics, which meanwhile has been extended by Doering and Isham so as to provide a new mathematical foundation for all of physics.
Landsman, N.P.   +14 more
core   +1 more source

Philosophical Foundations of Intuitionistic Logic [PDF]

open access: yesMetaphysics, 2013
Intuitionistic logic, as a non-classical logic, encompasses the principles of logical reasoning which were used by L. E. J. Brouwer in developing his intuitionistic mathematics.
L Nabavi, MA Hojati, H Alaeenezhad
doaj   +1 more source

From Intuitionism to Brouwer's Modal Logic

open access: yesBulletin of the Section of Logic, 2020
We try to translate the intuitionistic propositional logic INT into Brouwer's modal logic KTB. Our translation is motivated by intuitions behind Brouwer's axiom p →☐◊p The main idea is to interpret intuitionistic implication as modal strict implication ...
Zofia Kostrzycka
doaj   +1 more source

'Unless' is 'Or', Unless '¬A Unless A' is Invalid

open access: yesDialectica, 2022
The proper translation of "unless" into intuitionistic formalisms is examined. After a brief examination of intuitionistic writings on "unless", and on translation in general, and a close examination of Dummett's use of "unless" in Elements of ...
Roy Cook
doaj   +1 more source

The information in intuitionistic logic [PDF]

open access: yesSynthese, 2008
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
openaire   +2 more sources

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