Discussion of Homotopy Type Theory and Univalent Foundations
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* [HoTT] Topos talk: Shulman
@ 2021-05-27 15:48 Steve Awodey
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From: Steve Awodey @ 2021-05-27 15:48 UTC (permalink / raw)
  To: Homotopy Type Theory; +Cc: CMU HoTT

~ Topos Institute Colloquium ~

Michael Shulman: Two-dimensional semantics of homotopy type theory

Abstract: The general higher-categorical semantics of homotopy type theory involves (∞,1)-toposes and Quillen model categories. However, for many applications it suffices to consider (2,1)-toposes, which are reasonably concrete categorical objects built out of ordinary groupoids. In this talk I'll describe how to interpret homotopy type theory in (2,1)-toposes, and some of the applications we can get from such an interpretation. I will assume a little exposure to type theory, as in Dan Christensen's talk from April, but no experience with higher toposes or homotopy theory. This talk will also serve as an introduction to some basic notions of Quillen model categories.

Time: May 27, 2021 05:00 PM Universal Time UTC (13:00 in PGH)
Zoom: https://topos-institute.zoom.us/j/5344862882?pwd=Znh3UlUrek41T3RLQXJVRVNkM3Ewdz09
Meeting ID: 534 486 2882
Passcode: 65537

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