Re: ping GhostInTheMachine

good ole box o' fridge magnets!

1 <-> {4,5}
2 <-> {1,2,3}
3 <-> {4,5,6}
4 <-> {1,3,5}
....

then D contains at least the elements 1, 3, and 4


>>>note box 2 contains its own number.
Herc

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