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This tag is used if a reference is needed in a paper or textbook on a specific result.

16 votes

Are functor categories with triangulated codomains themselves triangulated?

I believe I have a simpler counterexample, which I learned from Paul Balmer's course on tensor-triangular geometry last spring: Claim The arrow category $\mathcal{T}^{\bullet \to \bullet}$ of a triang …
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