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    Discrete Math : Counting and Relations

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    Basics of Counting
    32. How many functions are there from the set {1, 2, ... , n}, where n is a positive integer, to the set {0, 1}?

    Relations & Relation Properties
    24. Let R be the relation R = {(a, b) | a < b} on the set of integers. Find
    a) R -1
    b) bar-R

    Application of Relations
    8. Suppose that R is a symmetric relation on a set A. Is bar-R also symmetric?

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    Solution Summary

    Counting and relations are investigated. The solution is detailed and well presented.