Theorem DihedralGroup.not_isCyclic

Modification history

2025-02-17 16:56
Mathlib/GroupTheory/SpecificGroups/Cyclic.lean
refactor(GroupTheory/SpecificGroups/Cyclic,Dihedral): Reverse import (#20923) …
Modified DihedralGroup.not_isCyclicView on Github →
2025-01-20 17:23
Mathlib/GroupTheory/SpecificGroups/Cyclic.lean
feat(GroupTheory/SpecificGroups): dihedral groups are not cyclic (with one exception) (#20817)
Added DihedralGroup.not_isCyclicView on Github →