Concept
How many ordered pairs does the relation represented by this graph have?
Stephen Davies, Ph.D. Version 2.2.2 Through Discrete Mathematics A Cool Brisk Walk / Chapter 1
"dorelation, how many ordered pairs would it have? 14. (If you said 7, remember that since there are no arrowheads on the lines, this is an undirected graph, which corresponds to a symmetric relation, and hence both ( A , E ) and ( E , A ) will be present.)"
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