Def groupCohomology.shortComplexH2

Modification history

2024-01-01 15:59

Mathlib/RepresentationTheory/GroupCohomology/LowDegree.lean

feat(RepresentationTheory/GroupCohomology/LowDegree): Identify `groupCohomology A n`with `Hn A` for `n = 0, 1, 2` (#8802)

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