Book review: Al-Khunaji’s Logic (Fallahi, Asadollah, (2013), Al-Khunaji’s Logic, The Iranian Institute of Philosophy, Tehran)

Khunaji’s logic deal with the logical novelties Afzal aldin alKhunaji in his Kashf alasrar an ghawamiz alafkar. Among all the novelties of Kashf on concepts, defintion, propositons, and categorical and hypothetical syllogisms, Khunaji’s logic just deals with the following titles: real and external (haqiqi and khariji) propositions (five chapters), tautologies (five chapters), modalities (three chapters), and convesion (three chapters). In Khunaji’s logic, his points of views have been compared with those of his predessesors such as Avicenna and Fakhr aldin alRazi. All these have been acomplished using methods of the modern mathematical logic.