Theorem groupCohomology.cochainsMap_f_2_comp_twoCochainsIso

Modification history

2025-07-03 00:27
Mathlib/RepresentationTheory/Homological/GroupCohomology/Functoriality.lean
refactor: denote low degree group cohomology API indices with subscripts (#26546) …
Deleted groupCohomology.cochainsMap_f_2_comp_twoCochainsIsoView on Github →
2025-05-29 14:16
Mathlib/RepresentationTheory/GroupCohomology/Functoriality.lean
refactor(RepresentationTheory/GroupCohomology/*): replace `nCochainsLequiv` with isomorphisms in `ModuleCat` for `n = 0, 1, 2` (#24693) …
Added groupCohomology.cochainsMap_f_2_comp_twoCochainsIsoView on Github →