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CategoryTheory.InjectiveResolution.extEquivCohomologyClass_symm_mk_hom
Modification history
2025-12-28 17:51
Mathlib/CategoryTheory/Abelian/Injective/Ext.lean
feat(CategoryTheory): computing Ext-groups using an injective resolution (#32105) …
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CategoryTheory.InjectiveResolution.extEquivCohomologyClass_symm_mk_hom
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