Hermann kankel did not hesitate to say in 1896 that projective geometry is the royal road to all mathematics . HermannKankel在1896年毫不犹疑地说,射影几何是走向所有数学的康庄大道。
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Hermann kankel did not hesitate to say in 1896 that projective geometry is the royal road to all mathematics Hermann kankel在1896年毫不犹疑地说,射影几何是走向所有数学的康庄大道。