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Jonathan Chiche's user avatar
Jonathan Chiche's user avatar
Jonathan Chiche
  • Member for 13 years, 11 months
  • Last seen more than 9 years ago
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11 Questions

Score Activity Newest Views
72 votes
3 answers
9k views

Has the mathematical content of Grothendieck's "Récoltes et Semailles" been used?

38 votes
3 answers
4k views

In which situations can one see that topological spaces are ill-behaved from the homotopical viewpoint?

30 votes
11 answers
5k views

What are your favorite concrete examples of limits or colimits that you would compute during lunch?

24 votes
2 answers
3k views

What has happened to Lang's Files and other political texts?

19 votes
1 answer
857 views

Does the category of strict $2$-categories together with Dwyer-Kan equivalences provide a model for $(\infty,1)$-categories?

12 votes
0 answers
451 views

What is the history of the notion of subdivision of categories?

11 votes
1 answer
711 views

Is there any elementary text unravelling the definitions of 2-category, lax functor and lax transformation, allowing people who do not know in the first place what these things are to really understand the definitions?

9 votes
1 answer
772 views

How do various notions of natural transformation relate to various notions of homotopy in $2Cat$?

6 votes
2 answers
274 views

Where is it rigorously stated and proved that the definition of lax functor implies that the generalized cocycle condition holds for an arbitrary number of composable $1$-cells?

4 votes
1 answer
528 views

Is there a standard name for a 2-category which has an object z such that, for every object x, the category Hom(x,z) has a terminal object?

4 votes
0 answers
127 views

What should be the terminology regarding symmetries in 2-Cat?