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  1. Page created, but author did not leave any comments.

    Anonymous

    v1, current

    • CommentRowNumber2.
    • CommentAuthorUrs
    • CommentTimeMay 14th 2022

    Could we add some references on usage of this terminology? Or else a comment that it’s meant to be new terminology?

    But I see that this is material being ported over from extensional category (homotopytypetheory) (which doesn’t attribute the terminology either).

  2. This page is also unneeded, since the functor into Set for any concrete category is faithful, and because Set is well pointed and morphisms out of the terminal object in Set are in bijection with elements, morphisms of any concrete category satisfy function extensionality.

    Anonymous

    diff, v7, current

    • CommentRowNumber4.
    • CommentAuthorUrs
    • CommentTimeMay 18th 2022

    While I don’t regret that the entry is gone, I don’t understand that this is the reason to remove it: Certainly the point of the entry was to apply to foundations where the assumptions in #3 fail.