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User talk:Peter Luschny/Nimber

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I've just found, that the subgroups of nimber addition have an interesting feature: The subgroups of Z2^n belong to 2^n equivalence classes, and the number of these equivalence classes rank by rank corresponds to a row of Pascals triangle. At least, that's what I have shown till n=4 at the moment:
Greetings, Tilman Piesk 18:23, 6 June 2011 (UTC)