Theodore de Cyrène (Greece, -470 with -420) is a Mathématicien Greek specialist in Géométrie.
Its work in particular milked with the incommensurable numbers discovered by the pythagoricians. One would also owe him a construction of the square roots of the integers by the means of a Spirale, as well as the proof that the square roots of 3,5,6,7,8,10,11,12,13,14,15 and 17 are irrational.
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