Small 4to. 220 pp., Arabic Text neatly hand written, 18 lines to the page, tables, some headings written in red, a couple of pages have light damp stains, very good copy, contemporary full stamped calf, inscribed 30 March, 1865.

Synopsis

Najam al-Din al-Qazwini al-Khatibi (d.1276) was an Islamic philosopher and logician. His most important work is this work on logic. It was commonly used as the first major text on logic in madrasas, until the twentieth century and is “perhaps the most studied logical textbook of all time”. Al-Katibi’s logic was largely inspired by the formal Avicennian system of temporal modal logic, but is more elaborate and departs from it in several ways. While Avicenna considered ten modalities and examined six of them, al-Katibi considered many more modalized propositions and examined thirteen which he believed were “customary to investigate”.