Mathematics surely starts with counting and basic arithmetic; perhaps some understanding of repetition and regular intervals comes next, but geometry was surely not far behind. It was surely where mathematics first got formalised and axiomatised, at least; and several ancient civilisations recognised the significance of some of its consequences. In this part of my web-site, I explore some of the basic results of classical geometry, particularly those involving pictorial proofs (presented using SVG images, for the most part). More algrebraic treatments of geometry remain elsewhere.
I'm a bit haphazard about adding to and maintaining this area.