How Many Substructures Can Be Found in Complete Graphs K_n?

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sara15
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If we have K_n denote the complete graph on n vertices, can anyone explain to me how to know how many substructures does K_n have?
 
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sara15 said:
If we have K_n denote the complete graph on n vertices, can anyone explain to me how to know how many substructures does K_n have?

Do you mean how many sub graphs does it have? If so, how many subsets of n verticies is there?
 
Robert1986 said:
Do you mean how many sub graphs does it have? If so, how many subsets of n verticies is there?

yes it means a subgraph