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For questions involving one or more categorical dimensions, or involving homotopy coherent categorical structures.

2 votes
1 answer
128 views

Question about maps on cofibers being zero

I have the following problem, I am skeptical that the solution is as easy as the one I wrote so would be grateful if some expert can enlighten me. Let $G\colon \mathcal{C}\to \mathcal{D}$ be a functor …
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5 votes
1 answer
222 views

limits and products stable $\infty$-category

In an abelian category $\mathcal{A}$, for a system $\{F_i,\phi_{ij}\}$ we have an exact sequence $0\to \lim F_i\to \prod F_i \to \prod F_i$ where the second map is given by $id-\prod\phi_{ij}$. Is the …
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