Hausdorff paradox


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Hausdorff paradox

[′hau̇s‚dȯrf ‚par·ə‚däks]
(mathematics)
The theorem that a sphere can be represented as the union of four disjoint sets, A, B, C, and D, where D is a countable set, and A is congruent to each of the three sets B, C, and the union of B and C.