Entry Version:

This is the English version of this article translated by Patrick Hogan. The original Italian version was written by Paola Ascheri and first published on 05/06/2009.

Here is the Italian version of this entry.

Grammarian:

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Biography:

Demetrius was the author of a treatise entitled Περὶ λόγου συναφῆς, and he is cited exclusively in the late and probably spurious part of Porphyry’s ¹ commentary² on Ptolemy’s ³ Harmonica⁴, among those who treated the concepts of διάστημα and λόγος as not comp…