Results 241 to 250 of about 4,040 (274)
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Construction of relations in relational databases
ACM Transactions on Database Systems, 1980Using a nonprocedural language for query formulation requires certain automatization of a query answering process. Given a query for creation of a new relation, the problem is to find an efficient procedure which produces this relation from a given relational database. We concentrate upon sequences of join operations which losslessly produce a relation
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Conjugate Relations and Weak Subdifferentials of Relations
Mathematics of Operations Research, 1981The duality theory for convex programs is based on a concept “conjugate” of functions, and the set of solutions is characterized by “subdifferential” of a function. The purpose of this paper is to extend the concepts “conjugate” and “subdifferential” to those of set-valued functions (relations) and to investigate their properties.
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On Definability of Relations by Only One Relation
Mathematical Logic Quarterly, 1986Let A be an infinite set and \((R_ n)_ ...
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Synthese, 2018
I shall explore in this article the hypothesis that structures are relations between the components of complex entities. After having introduced hylomorphism, its major advantages and the major views of the nature of structures, I shall introduce the distinctions between external and internal relations and the one between symmetrical and non ...
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I shall explore in this article the hypothesis that structures are relations between the components of complex entities. After having introduced hylomorphism, its major advantages and the major views of the nature of structures, I shall introduce the distinctions between external and internal relations and the one between symmetrical and non ...
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Journal of Symbolic Logic, 1955
In this paper I am going to set forth a formal system based on five inter-class relations. These relations exist respectively between a class of a's and a class of b's.(i) if and only if every a is a b and every b is an a,(ii) if and only if every a is a b and not every b is an a,(iii) if and only if it is not the case that either every a is a b or ...
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In this paper I am going to set forth a formal system based on five inter-class relations. These relations exist respectively between a class of a's and a class of b's.(i) if and only if every a is a b and every b is an a,(ii) if and only if every a is a b and not every b is an a,(iii) if and only if it is not the case that either every a is a b or ...
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Relations related to betweenness
1997In the last chapter we defined linear betweenness relations, circular (or cyclic) orders and separation relations from a linear order and studied their groups of automorphisms. The automorphism group of a linear order has already been studied in detail in Chapter 9.
Meenaxi Bhattacharjee +3 more
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The Relation of No Relation, and Relational Activism
Philosophy of Education, 2007openaire +1 more source
Who is the "Other"? In a culturally and religiously diverse world, how can the church build just relationships with the "Other" without compromising each party’s unique identity? In Relation without Relation, the author presents intercultural theology as a decolonizing approach to mission practice. He employs key concepts from Emmanuel Levinas, Jacques
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