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view wisdom/klein bottle @ 12222:23a1a28b65cb draft
<shachaf> forget categorical product
author | HackEso <hackeso@esolangs.org> |
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date | Sun, 01 Dec 2019 19:43:34 +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.