Eudemus (350-290 BC) was the second major companion of Aristotle besides Theophrastus. Aristotle, marble copy of bronze by Lysippos. ... Theophrastus, the successor of Aristotle in the Peripatetic school, a native of Eresus in Lesbos, was born c. ...
Eudemus is also the name of a general of Alexander the Great (died 316 BC).
Among the topics Eudemus discussed were the discovery of geometrical theorems and constructions (systematized in Eudemus's days by Euclid in his Elements), and the classical problems of Greek geometry, such as the quadrature of the circle and the duplication of the cube.
Eudemus, Theophrastus, and other pupils of Aristotle took care that the intellectual heritage of their master after his death would remain accessible in a reliable form, by recording it in a long series of publications.