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view wisdom/klein bottle @ 9805:0ee35941a045
<oerjan> learn Endomorphisms are the most final morphisms.
author | HackBot |
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date | Wed, 30 Nov 2016 04:27:15 +0000 |
parents | 3ce8590589fa |
children |
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A Klein bottle is like a torus, but more insidious. Taneb tried to invent it, but got trapped inside.