Theorem alternatingGroup.kleinFour_isKleinFour

Modification history

2025-07-23 08:49
Mathlib/GroupTheory/SpecificGroups/Alternating/KleinFour.lean
feat(GroupTheory/SpecificGroups/Alternating/KleinFour): the Klein Four subgroup of alternatingGroup on 4 letters (#27057) …
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