Re: [HoTT] Impredicative set + function extensionality + proof irrelevance consistent?

[Thorsten Altenkirch <Thorsten....@nottingham.ac.uk>]

Ah, you suffer from using set theory as a meta language. (

There are lots if univalent categories. In HoTT.

Thorsten

On 19/12/2017, 15:31, "homotopyt...@googlegroups.com on behalf of Thomas Streicher" <homotopyt...@googlegroups.com on behalf of stre...@mathematik.tu-darmstadt.de> wrote:

    I am afraid there want exist too many univalent categories. They all
    would be rigid which is very inconstructive.
    
    





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