Question

What is set notation ? give one example ​

Answer 1

Common Set Notation

|A|, called cardinality of A, denotes the number of elements of A. For example, if A={(1,2),(3,4)}, then |A|=2. A=B if and only if they have precisely the same elements. For example, if A={4,9} and B={n2:n=2 or n=3}, then A=B.

Answer 2

Answer:

In set theory and its applications to logic, mathematics, and computer science, set-builder notation is a mathematical notation for describing a set by enumerating its elements, or stating the properties that its members must satisfy.

I) For example, if A={(1,2),(3,4)}, then |A|=2. A=B if and only if they have precisely the same elements.

II) For example, if A={4,9} and B={n2:n=2 or n=3}, then A=B.

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