Theorem DihedralGroup.commutative_iff

Modification history

2026-04-09 03:01
Mathlib/GroupTheory/SpecificGroups/Dihedral.lean
chore(Algebra): use `IsMulCommutative` to spell `Std.Commutative (· * ·)` (#37448) …
Modified DihedralGroup.commutative_iffView on Github →
2025-02-17 16:56
Mathlib/GroupTheory/SpecificGroups/Dihedral.lean
refactor(GroupTheory/SpecificGroups/Cyclic,Dihedral): Reverse import (#20923) …
Modified DihedralGroup.commutative_iffView on Github →
2025-01-20 17:23
Mathlib/GroupTheory/SpecificGroups/Dihedral.lean
feat(GroupTheory/SpecificGroups): dihedral groups are not cyclic (with one exception) (#20817)
Added DihedralGroup.commutative_iffView on Github →