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1. |
Let G be the graph defined as the Hasse diagram for the ⊆ relation on the set S{1, 2,…, 18}. How many edges are there in G? |
A. | 43722 |
B. | 2359296 |
C. | 6487535 |
D. | 131963 |
Answer» C. 6487535 | |