When I was a boy in high school, Euclid had already been superceded. I am curious. Has anyone out there ever actually been called on in school to look at the Elements? It is really rather elegant. Cartesian Geometry [named, of course, after Descartes] is vastly superior mathematically, but nowhere near so charming.
Friday, September 9, 2016
On Monday, I shall give my second Kant lecture, but I am already preparing Lecture Three, which will be devoted to the Transcendental Aesthetic. Naturally, I shall spend some time in that lecture explaining why Kant believed that Geometry consists, for the most part, of synthetic propositions that are known a priori. In search of useful illustrations of this important claim, I took down from the shelf my old copy of Book I of Euclid's Elements which, I see from the flyleaf, I bought used many years ago for two dollars.