Olry Terquem
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Olry Terquem (1782 - 1862) was a French mathematician, best known for his work in geometry, where he proved the Feuerbach's theorem about the nine-point circle of a triangle. As one of the editors of the Nouvelles Annales he published in 1842 the second analytical proof of the Feuerbach's theorem that the nine-point circle touches the incircle and the excircles of a triangle.
Terquem was among the first who recognized how great Galois' work is.
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