2026-10-18 07:19
Mathlib/Algebra/Homology/HomotopyCategory/HomComplexShift.lean
feat(Category/Abelian/Injective): interaction between `InjectiveResolution.extMk` and the connecting morphism (#43224) …
Added CochainComplex.HomComplex.Cocycle.shiftedHomComp_equivHomShift_symm