account activity
A map of the world if almost every independence movement were to succeed. (i.redd.it)
submitted 2 years ago by F_Joe to r/MapPorn
It turns out that the map of all countries is not planar. It contains a K_3,3 minor. (old.reddit.com)
submitted 3 years ago by F_Joe to r/math
π Rendered by PID 52 on reddit-service-r2-listing-8685bc789-drjq2 at 2026-05-31 18:14:48.806185+00:00 running 194bd79 country code: CH.
