Abstract
A set is a collection of objects viewed as a single entity. The individual objects of the set are called the elements of the set. Sets usually are denoted by capital letters: A,B,C,…….Z, and elements are designated by lowercase letters; a,b,c,….y.z. If a is an element of the set A, we write a ∈ A, and we write a ∉A for a is not an element of A. A set is called a finite set when it contains a finite number of elements and an infinite set otherwise. The null set φ is the set that contains no elements. The total or universal set ∪ is the set which contains all the elements under consideration.
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© 1993 Springer Science+Business Media Dordrecht
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Aggarwal, K.K. (1993). Reliability Mathematics. In: Reliability Engineering. Topics in Safety, Reliability and Quality, vol 3. Springer, Dordrecht. https://doi.org/10.1007/978-94-011-1928-3_2
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DOI: https://doi.org/10.1007/978-94-011-1928-3_2
Publisher Name: Springer, Dordrecht
Print ISBN: 978-94-010-4852-1
Online ISBN: 978-94-011-1928-3
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