Authors retain the copyright and grant the journal right of first publication with the work simultaneously licensed under a Creative Commons Attribution 4.0 International Public License (CC-BY-4.0) that allows others to share the work with an acknowledgment of the work's authorship and initial publication.
On the difficult exegesis of the expression Ἰδιόγραφοι χαρακτῆρες, by which Ammonius seems to indicate a particular type of marks applying to every field of knowledge, and elaborated on the basis of rational and conventional reckoning.