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[Merged by Bors] - feat(CategoryTheory): the pullback of a shift by a monoid morphism #7270
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Thanks 🎉
bors merge
Merge conflict. |
bors merge |
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In particular, when we apply this construction to
n => -n
and combine with #7268 we shall get the shift on the opposite category, which will be used to construct the opposite of a (pre)triangulated category.