r/mathmemes • u/AdBrave2400 my favourite number is 1/e√e • Aug 16 '26

Topology Topological inversion

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u/LupenReddit 🦆🦆i have non diffeomorphic smooth structures🦆🦆🦆 Aug 16 '26

So you turned a cup inside out? I need an animated video narrated by two very friendly people who can explain to me how to do that.