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18 dic 1812 anni - 1812 г. – доказательство гипотезы Пуансо о том, что существуют только 4 единственно возможных правильных звёздчатых многогранника – 4 многогранника Кеплера-Пуансо (О.Л. Коши).

Aggiunto al nastro di tempo:

История геометрии 2 часть

ByКсения
4 gen 2019
0
0
828

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18 dic 1812 anni
Adesso
~ 213 years ago
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