Duke Kang of Qi of Qi, he exiled Duke Kang to Zhifu Island in present-day Shandong Province, where he lived for seven more years and died in 379 BC. Duke Kang of Qi Duke Kang of Qi (; died 379 BC) was from 404 to 386 BC the titular ruler of the State of Qi during the early Warring States period of ancient China. His personal name was Lü Dai (呂貸), ancestral name Jiang (姜), and Duke Kang was his posthumous title. He was the final Qi ruler from the House of Jiang. Duke Kang succeeded his father, Duke Xuan of Qi, who died
What Is Mathematics? Expectations" by Charles Dickens. According to Constance Reid, Courant finalized the title after a conversation with Thomas Mann. What Is Mathematics? What Is Mathematics? is a mathematics book written by Richard Courant and Herbert Robbins, published in England by Oxford University Press. It is an introduction to mathematics, intended both for the mathematics student and for the general public. First published in 1941, it discusses number theory, geometry, topology and calculus. A second edition was published in 1996 with an additional chapter on recent progress in mathematics, written by Ian Stewart. The book was based on Courant's course material. Although