Zayn al-Din Omar Savaji

After serving as a judge in Saveh, he went to pursue scholarly interests in Neyshapur.

Five of his works have been published, three are still in manuscript form and the rest are unknown or possible misattributions.

[2] His works on logic, in which he made innovative proposals for the use of Persian in place of Arabic terms, were especially influential.

He proposed a revisions in the order of the subject matter in Aristotle's Organon.

He is cited frequently in the later Iranian philosophical tradition, though he has remained almost unknown to Western historians of philosophy and logic.