Alexander Gietelink Oldenziel comments on Just because 2 things are opposites, doesn’t mean they’re just the same but flipped

Alexander Gietelink Oldenziel Apr 3, 2024, 10:29 AM
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A simple yet peculiar truth :

A category is not generically isomorphic to its opposite.
- tailcalled Apr 3, 2024, 11:15 AM
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  A notable counterexample is FinVect, which has an equivalence of categories FinVect → FinVect^op.