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Comments on Warning 8.1.2.19

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Comment #1515 by 熊茳楠 on

How to prove the fact that is homotopy equivalent to its opposite?

Comment #1521 by Kerodon on

One proof: the geometric realizations are homeomorphic.

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  • 1 comment(s) on Section 8.1: Twisted Arrows and Cospans

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