QC (in Berlin 7/29-??? w/ COVID )@QiaochuYuan·Nov 11, 2020classic https://mathoverflow.net/questions/53122/mathematical-urban-legends…4457
QC (in Berlin 7/29-??? w/ COVID )@QiaochuYuanchad zariski7:15 AM · Nov 11, 2020·Twitter Web App24 Likes
