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Message * Articles On 9-polytopes, including Uniform Polyyotton, 9-demicube, 9-cube, 9-orthoplex, 9-simplex, Octeractic Honeycomb, Demiocteractic Honeycomb, 1 52 Honeycomb, 2 51 Honeycomb, 5 21 Honeycomb, Rectified 9-orthoplex - 1243109068 - 9781243109064