Theorem MulChar.mem_subgroupOrderIsoSubgroupMulChar_iff

Modification history

2026-03-07 11:26
Mathlib/NumberTheory/MulChar/Duality.lean
feat(MulChar): generalize duality results on finite abelian groups to multiplicative characters (#33878)
Added MulChar.mem_subgroupOrderIsoSubgroupMulChar_iffView on Github →