Results 41 to 50 of about 970 (166)

Lattice of $E$-closed Classes of Multifunctions of Rank 2

open access: yesИзвестия Иркутского государственного университета: Серия "Математика"
Multifunctions are discrete functions defined on a finite set and returning as their values all subsets of the considered set. The paper considers the classification of multifunctions defined on a two-element set with respect to the E-closure operator ...
B. P. Ilyin, V.I. Panteleev
doaj   +1 more source

Formalisation de l’égalité empirique de deux grandeurs – Applications

open access: yesPhilosophia Scientiæ
The mathematical discourse on empirical equalities systematically uses the figure of equality in “abstract spaces” adapted to each case. Instead of these “ascents into ontology”, we prefer an enrichment of the formal language that can precisely convey ...
Yves Péraire
doaj   +1 more source

Proof-irrelevant model of CC with predicative induction and judgmental equality [PDF]

open access: yesLogical Methods in Computer Science, 2011
We present a set-theoretic, proof-irrelevant model for Calculus of Constructions (CC) with predicative induction and judgmental equality in Zermelo-Fraenkel set theory with an axiom for countably many inaccessible cardinals. We use Aczel's trace encoding which is universally defined for any function type, regardless of being impredicative.
Gyesik Lee, Benjamin Werner
openaire   +4 more sources

Order-Sorted Equality Enrichments Modulo Axioms [PDF]

open access: yes, 2015
Built-in equality and inequality predicates based on comparison of canonical forms in algebraic specifications are frequently used because they are handy and efficient.
Gutiérrez Gil, Raúl   +2 more
core   +1 more source

A Note on Logic Programming Fixed-Point Semantics [PDF]

open access: yes, 1993
In this paper, we present an account of classical Logic Programming fixed-point semantics in terms of two standard categorical constructions in which the least Herbrand model is characterized by properties of universality.
Sassone, V.
core  

A note on generalized generalization

open access: yesActa Universitatis Carolinae Philosophica et Historica
The generalization rules of sequent calculi allow, under some restrictions, to derive a formula ∃χφ or ∀χφ from a formula φχ (γ), i.e. from the formula obtained by substituting a variable γ for all free occurrences of χ in φ.
Vítězslav Švejdar
doaj   +1 more source

IBN SĪNĀ'S APPROACH TO EQUALITY AND UNITY [PDF]

open access: yes, 2017
Aristotle did not develop the quantification of the predicate, but, as shown in a recent paper by Hasnawi, Ibn Sīnā did. In fact, assuming the Aristotelian subject-predicate structure, Ibn Sīnā qualifies those propositions that carry a quantified ...
Granström, Johan Georg   +2 more
core  

Checking Chase Termination over Ontologies of Existential Rules with Equality [PDF]

open access: yes, 2020
The chase is a sound and complete algorithm for conjunctive query answering over ontologies of existential rules with equality. To enable its effective use, we can apply acyclicity notions; that is, sufficient conditions that guarantee chase termination.
Urbani, Jacopo, Carral, David
core   +1 more source

Social Network Rumor Diffusion Predication Based on Equal Responsibility Game Model [PDF]

open access: yesIEEE Access, 2019
Because billions of mobile phones build a bridge between mobile sensor networks and social networks, the content of a rumor is diffused faster than ever. Therefore, rumor diffusion becomes an important issue in those two networks and how to predicate rumor diffusion becomes more important in handling rumors when they cause a little impact at the ...
Dazhen Lin   +5 more
openaire   +2 more sources

Decidability of Program Verification Can Be Achieved by Replacing the Equality Predicate by the "constructive" One [PDF]

open access: yes, 1999
. In this paper a specification language for sequential file processing is defined. For a rich subset of this language the decidability of the program verification problem is proved.The crucial point is the introduction of "constructive " ...
Mikhail Auguston
core  

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