От ЧТО У МЕНЯ ЕСТЬ "gymnasium" from 1802 to 1807 and in 1807 he entered KazanUniversity. At the University N.I. Lobachevsky spent the next forty years of his life as a student, professor and rector. Lobachevsky became interested in2mathematics when he was still a schoolboy and he remained true to this science all his life long. Lobachevsky did a lot to make KazanUniversity a first-rate4 educational institution of that time. At the same time he made extensive researches into mathematics. On February 23, 1826 a great event took place at KazanUniversity. N.I. Lobachevsky presented a paper "A Brief Outline of the Principles of Geometry Strictly Demonstrating the Theorem of Parallel Lines." 5That day a new geometrical system, the s

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