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Results tagged with higher-category-theory
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user 429204
For questions involving one or more categorical dimensions, or involving homotopy coherent categorical structures.
14
votes
2
answers
681
views
Who introduced the notion of 2-categories?
Wikipedia seems to have an answer
"The concept of 2-category was first introduced by Charles Ehresmann in his work on enriched categories in 1965. The more general concept of bicategory (or weak 2-cat …
- 894
1
vote
0
answers
212
views
Kan extensions in Grothendieck school
Considering both the ubiquity of Kan extensions in category theory (as MacLane stated, 'The notion of Kan extensions subsumes all the other fundamental concepts of category theory.'), its early introd …
- 894