In this 45 minutes seminar, Associate Professor Emily Riehl presents a new point of view on the foundations of ∞-category theory, which allows us to develop the basic theory of ∞-categories — adjunctions, limits and colimits, co/cartesian fibrations, and pointwise Kan extensions — “synthetically” starting from axioms that describe an ∞-cosmos, the infinite-dimensional category in which ∞-categories live as objects.
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