Results 51 to 60 of about 155,122 (304)

Tractable Reasoning in a Fragment of Separation Logic [PDF]

open access: yes, 2011
In 2004, Berdine, Calcagno and O'Hearn introduced a fragment of separation logic that allows for reasoning about programs with pointers and linked lists. They showed that entailment in this fragment is in coNP, but the precise complexity of this problem has been open since.
Cook, B   +4 more
openaire   +3 more sources

Computations in fragments of intuitionistic propositional logic [PDF]

open access: yesJournal of Automated Reasoning, 1991
This article is a report on research in progress into the structure of finite diagrams of intuitionistic propositional logic with the aid of automated reasoning systems for larger calculations. A fragment of a propositional logic is the set of formulae built up from a finite number of propositional variables by means of a number of connectives of the ...
Jongh, D. de   +2 more
openaire   +4 more sources

Adding Path-Functional Dependencies to the Guarded Two-Variable Fragment with Counting [PDF]

open access: yesLogical Methods in Computer Science, 2017
The satisfiability and finite satisfiability problems for the two-variable guarded fragment of first-order logic with counting quantifiers, a database, and path-functional dependencies are both ExpTime-complete.
Georgios Kourtis, Ian Pratt-Hartmann
doaj   +1 more source

From truth to computability I [PDF]

open access: yes, 2005
The recently initiated approach called computability logic is a formal theory of interactive computation. See a comprehensive online source on the subject at http://www.cis.upenn.edu/~giorgi/cl.html .
Abramsky   +13 more
core   +2 more sources

Interpolation in fragments of intuitionistic propositional logic [PDF]

open access: yesThe Journal of Symbolic Logic, 1989
AbstractWe show in this paper that all fragments of intuitionistic propositional logic based on a subset of the connectives ∧, ∨, →, ¬ satisfy interpolation. Fragments containing ↔ or ¬¬ are briefly considered.
openaire   +5 more sources

Proof Normalisation in a Logic Identifying Isomorphic Propositions [PDF]

open access: yes, 2019
We define a fragment of propositional logic where isomorphic propositions, such as $A\land B$ and $B\land A$, or $A\Rightarrow (B\land C)$ and $(A\Rightarrow B)\land(A\Rightarrow C)$ are identified.
Dowek, Gilles, Díaz-Caro, Alejandro
core   +4 more sources

Maximum Entropy Reasoning via Model Counting in (Description) Logics that Count

open access: yesProceedings of the International Florida Artificial Intelligence Research Society Conference
In previous work it was shown that the logic ALCME,  which extends the description logic (DL) ALC with probabilistic conditionals, has domain-lifted inference.
Franz Baader, Anton Claußnitzer
doaj   +1 more source

MK-fuzzy Automata and MSO Logics [PDF]

open access: yesElectronic Proceedings in Theoretical Computer Science, 2017
We introduce MK-fuzzy automata over a bimonoid K which is related to the fuzzification of the McCarthy-Kleene logic. Our automata are inspired by, and intend to contribute to, practical applications being in development in a project on runtime network ...
Manfred Droste   +3 more
doaj   +1 more source

Incompleteness of a first-order Gödel logic and some temporal logics of programs [PDF]

open access: yes, 1996
It is shown that the infinite-valued first-order Gödel logic G° based on the set of truth values {1/k: k ε w {0}} U {0} is not r.e. The logic G° is the same as that obtained from the Kripke semantics for first-order intuitionistic logic with constant ...
Baaz, Matthias   +2 more
core   +2 more sources

Quantum Uncertainties and Holism Seem to Render Irrelevant Qudit-Semantics

open access: yesEntropy, 2021
We consider a semantics based on the peculiar holistic features of the quantum formalism. Any formula of the language gives rise to a quantum circuit that transforms the density operator associated to the formula into the density operator associated to ...
Roberto Leporini
doaj   +1 more source

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