The directed graph G for a relation R on set A = {1, 2, 3, 4} is
Question:
(a) Verify that (A, R) is a poset and find its Hasse diagram.
(b) Topologically sort (A, R).
(c) How many more directed edges are needed in Fig. 7.24 to extend (A, R) to a total order?
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a b 3 2 ...View the full answer
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Related Book For 
Discrete and Combinatorial Mathematics An Applied Introduction
ISBN: 978-0201726343
5th edition
Authors: Ralph P. Grimaldi
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