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1 jul 852 ano - Трактат «Комментарии к трудным постулатам Евклида» – серьёзный шаг к созданию неевклидовой геометрии (О. Хайям).

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История геометрии 1 часть

4 jan 2019

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1 jul 852 ano

Agora

~ 1174 years ago

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