☆ Yσɠƚԋσʂ ☆ to Mathematics · 2 years agoA non-constructive proof of the Four Colour Theoremarxiv.orgexternal-linkmessage-square0fedilinkarrow-up12arrow-down10
arrow-up12arrow-down1external-linkA non-constructive proof of the Four Colour Theoremarxiv.org☆ Yσɠƚԋσʂ ☆ to Mathematics · 2 years agomessage-square0fedilink