Changes

'''Janos Bolyai''' was a [[Hungarian]] [[mathematician]] in the nineteenth century. He was the son of Farkas Bolyai, another mathematician, who was a friend and colleague of the great [[German]] mathematician [[Carl Friedrich Gauss]]. Janos Bolyai invented non-Euclidean [[geometry]] at the same time as and independently of his rival, the [[Russian]] mathematician and [[astronomer]] Nikolai Lobachevsky. Non-Euclidean geometry is a form of geometry which differs from traditional Euclidean geometry in that it rejects Euclidean geometry's fifth == postulate that parallel lines can never intersect. ==See also ==