Publisher Summary The 14th century was a period of intense intellectual activity in Christian Europe, in spite of the image of decline and disaster often associated with this period. By that time, the Universities of Paris and Oxford, whose birth had taken place in the previous centuries, had acquired maturity as institutions, and the different forms for intellectual investigation had been laid down. Even the “black death” in the mid-14th century did not provoke a total decline in the degree of sophistication of the knowledge being produced at the time, in spite of having taken the lives of some of its brightest masters. In many senses, logic was thought to be the general method with which any student had to have a high degree of familiarity before proceeding to any other topic. So, on the one hand, at least some of the logic of that period was really meant for very young students just beginning their intellectual career; on the other hand, while it was indeed the most common for masters to move on to more serious topics (especially theology) at later stages of their careers but this was not always the case; Buridan is the most prominent but not the only example of a master having stayed at the faculty of Arts throughout his career, many of them viewed logic not only as the matter to be covered by very young students. Indeed, the 14th century corpus on logic presents logical analysis of the highest quality.