William of Ockham (also Occam, Hockham, or any of several other spellings, IPA: /ˈɒkəm/) (c. 1288 - c. 1348) was an English Franciscan friar and scholastic philosopher, from Ockham, a small village in Surrey, near East Horsley. He is considered, along with Thomas Aquinas, Duns Scotus, and Averroes (ibn Rushd in the Middle East), to be one of the major figures of medieval thought and was at the centre of the major intellectual and political controversies of the fourteenth century. Although commonly known for Occam's Razor, the methodological principle that bears his name, William of Ockham also produced significant works on logic, physics, and theology. In the Church of England, his day of commemoration is April 10.
Ockham uses supposition to give a nominalist analysis of the logic and truth conditions of propositions. It’s very clever and imaginative for its time.
A bit ironic that out of all the books in this philosophy series so far, the longest book is by the guy who invented Occam's Razor... Perhaps the simplest explanation would be that I should skip this book :-) but we'll give it a go! If I was able to finish Avicenna in 2025 despite all the insanity of that year, I am ready to give Ockham a try in 2026.