Themosthighstrange@lemmy.world to Lemmy Shitpost@lemmy.world · 1 个月前The cylinder must remain unharmedlemmy.worldimagemessage-square77linkfedilinkarrow-up1469
arrow-up1469imageThe cylinder must remain unharmedlemmy.worldThemosthighstrange@lemmy.world to Lemmy Shitpost@lemmy.world · 1 个月前message-square77linkfedilink
minus-squarejxk@sh.itjust.workslinkfedilinkarrow-up4·30 天前Isn’t the 3-torus a 3-dimensional space? The surgace of this mug is two-dimensional. But I agree that it’s a “torus with three holes”
Isn’t the 3-torus a 3-dimensional space? The surgace of this mug is two-dimensional. But I agree that it’s a “torus with three holes”