Title: Thulāthīyat al-burhān wa-al-khayāl wa-al-mīzān
Subjects: Islamic philosophy, Abū Ḥayyān al-Tawḥīdī, ʻAlī ibn Muḥammad,
People: Avicenna (980-1037), Jābir ibn Ḥayyān (d. 815)