Comment Comment by smacke Discussion on reddit from when I posted about this (more than 10 years ago now!): https://old.reddit.com/r/math/comments/144qc4/a_beautiful_pr...Original pdf seems to have been taking down from AOPS but is still available in the internet archive: https://web.archive.org/web/20121018044426/https://artofprob... parent smacke 2 years ago
Original pdf seems to have been taking down from AOPS but is still available in the internet archive: https://web.archive.org/web/20121018044426/https://artofprob...