Pythagorean Arithmetic

I’ve recently learned the possible name of a subject that I’ve always been interested in: Pythagorean Arithmetic. In short, this involves ‘proving’ theorems in number theory using mathematical thinking from approximately the 6th century BC, involving for the most very visual proofs, which can be explained using pebbles on a sandy beach. I write ‘proving’Continue reading “Pythagorean Arithmetic”