Mathematician:Proclus Lycaeus

Greek philosopher (usually known as Proclus, also as Proclus Diadochus) who among other things produced a commentary on Book 1 of Euclid's.

Nationality
Greek, of Byzantine origin

History

 * Born: 8 Feb 411 in Constantinople (now Istanbul), Byzantium (now Turkey)
 * Died: 17 April 485 in Athens, Greece

Books and Papers

 * Platonic Theology (6 volumes)
 * Elements of Theology
 * Elements of Physics
 * Commentary on Plato's "Alcibiades I"
 * Commentary on Plato's "Cratylus"
 * Commentary on Plato's "Parmenides"
 * Commentary on Plato's "Republic"
 * Commentary on Plato's "Timaeus"
 * Commentary on Euclid (the first book of only)
 * Ten doubts concerning providence
 * On providence and fate
 * On the existence of evils
 * Various Hymns (fragments)
 * Commentary on the Chaldaean Oracles (fragments)


 * The life of Proclus, or On Happiness: written by his pupil, Marinus

Notable Quotes

 * Not much younger than these [i.e. Hermontimus of Colophon and Philippus of Medma] is Euclid, who put together, collecting many of Eudoxus' theorems, perfecting many of Theaetetus', and also bringing to irrefragable demonstration the things which were only somewhat loosely proved by his predecessors. This man lived in the time of the first Prolemy. For Archimedes, who came immediately after the first (Ptolemy), makes mention of Euclid: and, further, they say that Ptolemy once asked him if there was in geometry any shorter way than that of , and he answered that there was no royal road to geometry. He is then younger than the pupils of Plato but older than Eratosthenes and Archimedes; for the latter were contemporary with one another, as Eratosthenes somewhere says.

Also see

 * : Introduction: Chapter $\text{I}$. Euclid and the Traditions About Him
 * : Introduction: Chapter $\text{IV}$. Proclus and his Sources