[Merged by Bors] - refactor: use the new homology API for right derived functors#8593
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[Merged by Bors] - refactor: use the new homology API for right derived functors#8593
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Injective resolutions and right derived functors are redefined using the new homology API. Co-authored-by: Joël Riou <[email protected]>
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Injective resolutions and right derived functors are redefined using the new homology API. Co-authored-by: Joël Riou <[email protected]>
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This instance was added in mathlib#leanprover-community#8593; it appears the main author simply forgot to add themselves as copyright holder.
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This instance was added in mathlib#leanprover-community#8593; it appears the main author simply forgot to add themselves as copyright holder.
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Injective resolutions and right derived functors are redefined using the new homology API.
After this PR is merged, I will do a similar refactor for left derived functors, but that PR shall have slightly bigger proportions because right derived functors are currently not in use, but left derived are: Ext modules, group cohomology, local cohomology. After that, the homology refactor shall be essentially complete: there might still be some results for the old homology API that have no equivalent for the new API, but once this is fixed, it will be possible to remove the old API.