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4 votes

a “self-dual” adjunction

(I'm a bit confused by your notation (what is $I$?), but if you mean what I think you mean...) I don't think there is an 'official' name for these things, but I've seen the term 'self-adjoint' used, …
Finn Lawler's user avatar
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2 votes

Basic category theory: Universality of adjunction unit is justified by Yoneda Proposition in...

Our adjunction isomorphism $\phi$ does not necessarily involve the assignment above. Yes, it does, by Yoneda's lemma. The bijection $\phi$ is natural, hence its value $\eta_x$ at the identity de …
Finn Lawler's user avatar
  • 3,622