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Ordered Pairs

publish date: 2022/07/14 01:37:00 GMT+10

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An ordered pair (1, 2) = (2, 1)

True
False

Correct Answer

False

Explanation

The ordered pair consisting of the element 1 and 2, in which 1 is the first element will be written as (1, 2), whereas the ordered pair consisting of the elements 1 and
2 in which 2 is the first element will be written as (2, 1). Obviously, then (1, 2) ≠ (2, 1).

Note: in elementary set theory, order of elements in a set is immaterial

Reference

Introduction to Differential Calculus (Systematic Studies with Engineering Applications for Beginners) - 2012

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