Haha, sources for which fact? I wrote a paper that deals with Pythagoras here. https://www.sciencedirect.com/science/article/pii/S240587262200003X https://www.

Haha, sources for which fact? I wrote a paper that deals with Pythagoras here. https://www.sciencedirect.com/science/article/pii/S240587262200003X https://www.sciencedirect.com/science/article/pii/S240587262...