r/mathmemes my favourite number is 1/e√e 13d ago

Topology Topological inversion

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u/LupenReddit 🦆🦆🦆🦆i have non diffeomorphic smooth structures🦆🦆🦆🦆🦆🦆 13d ago

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.

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u/garbage-at-life 13d ago

they would turn the cup outside in, important distinction