Theorem CommGroup.mem_subgroupOrderIsoSubgroupMonoidHom_symm_iff

Modification history

2026-02-26 19:49
Mathlib/GroupTheory/FiniteAbelian/Duality.lean
feat(GroupTheory/FiniteAbelian): construct bijection between subgroups and subgroups of the dual (#33792)
Added CommGroup.mem_subgroupOrderIsoSubgroupMonoidHom_symm_iffView on Github →