Practical, scientific, philosophical, and artistic problems have caused men to investigate mathematics. But there is one other motive which is as strong as any of these — the search for beauty. Mathematics is an art, and as such affords the...
Вокруг погромов в России в 1881-1882, 1903-1906 и 1919-1921 гг. сложилось немало мифов и легенд. Было принято считать, что виновником их был царский...