Petrus Hispanus' Tractatus : Logic and Philosophy from the Middle Ages to Modernity

Petrus Hispanus’ Tractatus, or Summulae logicales, composed in the mid-thirteenth century, came to occupy a central place in the study of logic from the late thirteenth century onward. Commented in several studia and then by Buridan at the University of Paris, it was gradually adopted across European universities and remained in use until the seventeenth century, surviving in hundreds of manuscripts and hundreds of printed editions.