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What is the number of ordered pair (A,B) where A and B are subsets of {1,2,3,4,5} such that neither A is a proper subset of B nor B is a proper subset of A? |
| Answer» What is the number of ordered pair (A,B) where A and B are subsets of {1,2,3,4,5} such that neither A is a proper subset of B nor B is a proper subset of A? | |