Aristotle’s Organon was the essential logic textbook for most Christian educational institutions in the 16th century. Most editions of the Organon included Porphyry’s summary of Aristotle’s logic, the Isagoge. Zacharinus Ursinus, the author of the Heidelberg Catechism, produced his own version of the Organon along with Porphyry’s introduction to be used for teaching the basics of logic […]
Categories
Reformation Logic
