
1 closure theory
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closure — closure, social closure Identified in the writings of Max Weber , and more recently resurrected by the British sociologist Frank Parkin, the concept emerged as an alternative to Marxist theories of inequality and of how the latter is generated,… … Dictionary of sociology
Closure: A Short History of Everything — Closure: A Story of Everything is a philosophical description of the world put forward by Hilary Lawson. It is an attempt to provide an account that overcomes the problems of self reference inherent in other philosophical systems. The theory of… … Wikipedia
Closure — may refer to: Closure (container) used to seal a bottle, jug, jar, can, or other container Closure (wine bottle), a stopper Closure (business), the process by which an organization ceases operations Closure (philosophy), a principle in… … Wikipedia
Closure with a twist — is a property of subsets of an algebraic structure. A subset Y of an algebraic structure X is said to exhibit closure with a twist if for every two elements there exists an automorphism ϕ of X and an element such that … Wikipedia
Closure operator — In mathematics, a closure operator on a set S is a function cl: P(S) → P(S) from the power set of S to itself which satisfies the following conditions for all sets X,Y ⊆ S. X ⊆ cl(X) (cl is extensive) X ⊆ Y implies cl(X) ⊆ cl(Y) (cl… … Wikipedia
Closure (mathematics) — For other uses, see Closure (disambiguation). In mathematics, a set is said to be closed under some operation if performance of that operation on members of the set always produces a unique member of the same set. For example, the real numbers… … Wikipedia
Closure (computer science) — In computer science, a closure (also lexical closure, function closure, function value or functional value) is a function together with a referencing environment for the non local variables of that function.[1] A closure allows a function to… … Wikipedia
Closure (topology) — For other uses, see Closure (disambiguation). In mathematics, the closure of a subset S in a topological space consists of all points in S plus the limit points of S. Intuitively, these are all the points that are near S. A point which is in the… … Wikipedia
Closure problem — A Closure problem is a problem in graph theory for finding a set of vertices in a directed graph such that there are no edges from the set to the rest of the graph. More specifically, the minimum closure problem asks for a set of this type with… … Wikipedia
Closure (philosophy) — For other uses, see Closure (disambiguation). Closure, in epistemology, is the principle that if a subject S knows that p, and S knows that p entails q, then S can thereby come to know that q. Most epistemological theories involve a closure… … Wikipedia
Implementation of mathematics in set theory — This article examines the implementation of mathematical concepts in set theory. The implementation of a number of basic mathematical concepts is carried out in parallel in ZFC (the dominant set theory) and in NFU, the version of Quine s New… … Wikipedia