{ localUrl: '../page/alternating_group_generated_by_three_cycles.html', arbitalUrl: 'https://arbital.com/p/alternating_group_generated_by_three_cycles', rawJsonUrl: '../raw/4hs.json', likeableId: '0', likeableType: 'page', myLikeValue: '0', likeCount: '0', dislikeCount: '0', likeScore: '0', individualLikes: [], pageId: 'alternating_group_generated_by_three_cycles', edit: '1', editSummary: '', prevEdit: '0', currentEdit: '1', wasPublished: 'true', type: 'wiki', title: 'Alternating group is generated by its three-cycles', clickbait: 'A useful result which lets us prove things about the alternating group more easily.', textLength: '541', alias: 'alternating_group_generated_by_three_cycles', externalUrl: '', sortChildrenBy: 'likes', hasVote: 'false', voteType: '', votesAnonymous: 'false', editCreatorId: 'PatrickStevens', editCreatedAt: '2016-06-17 15:23:26', pageCreatorId: 'PatrickStevens', pageCreatedAt: '2016-06-17 15:23:26', seeDomainId: '0', editDomainId: 'AlexeiAndreev', submitToDomainId: '0', isAutosave: 'false', isSnapshot: 'false', isLiveEdit: 'true', isMinorEdit: 'false', indirectTeacher: 'false', todoCount: '0', isEditorComment: 'false', isApprovedComment: 'true', isResolved: 'false', snapshotText: '', anchorContext: '', anchorText: '', anchorOffset: '0', mergedInto: '', isDeleted: 'false', viewCount: '26', text: 'The [-4hf] $A_n$ is generated by its $3$-[49f cycles].\nThat is, every element of $A_n$ can be made by multiplying together $3$-cycles only.\n\n# Proof\n\nThe product of two [4cn transpositions] is a product of $3$-cycles: \n\n- $(ij)(kl) = (ijk)(jkl)$\n- $(ij)(jk) = (ijk)$\n- $(ij)(ij) = e$.\n\nTherefore any permutation which is a product of evenly-many transpositions (that is, all of $A_n$) is a product of $3$-cycles, because we can group up successive pairs of transpositions.\n\nConversely, every $3$-cycle is in $A_n$ because $(ijk) = (ij)(jk)$.', metaText: '', isTextLoaded: 'true', isSubscribedToDiscussion: 'false', isSubscribedToUser: 'false', isSubscribedAsMaintainer: 'false', discussionSubscriberCount: '1', maintainerCount: '1', userSubscriberCount: '0', lastVisit: '', hasDraft: 'false', votes: [], voteSummary: 'null', muVoteSummary: '0', voteScaling: '0', currentUserVote: '-2', voteCount: '0', lockedVoteType: '', maxEditEver: '0', redLinkCount: '0', lockedBy: '', lockedUntil: '', nextPageId: '', prevPageId: '', usedAsMastery: 'true', proposalEditNum: '0', permissions: { edit: { has: 'false', reason: 'You don't have domain permission to edit this page' }, proposeEdit: { has: 'true', reason: '' }, delete: { has: 'false', reason: 'You don't have domain permission to delete this page' }, comment: { has: 'false', reason: 'You can't comment in this domain because you are not a member' }, proposeComment: { has: 'true', reason: '' } }, summaries: {}, creatorIds: [ 'PatrickStevens' ], childIds: [], parentIds: [ 'alternating_group' ], commentIds: [], questionIds: [], tagIds: [], relatedIds: [], markIds: [], explanations: [], learnMore: [], requirements: [ { id: '4134', parentId: 'alternating_group', childId: 'alternating_group_generated_by_three_cycles', type: 'requirement', creatorId: 'AlexeiAndreev', createdAt: '2016-06-17 21:58:56', level: '1', isStrong: 'false', everPublished: 'true' }, { id: '4135', parentId: 'sign_of_permutation_is_well_defined', childId: 'alternating_group_generated_by_three_cycles', type: 'requirement', creatorId: 'AlexeiAndreev', createdAt: '2016-06-17 21:58:56', level: '1', isStrong: 'false', everPublished: 'true' } ], subjects: [], lenses: [], lensParentId: '', pathPages: [], learnMoreTaughtMap: {}, learnMoreCoveredMap: {}, learnMoreRequiredMap: {}, editHistory: {}, domainSubmissions: {}, answers: [], answerCount: '0', commentCount: '0', newCommentCount: '0', linkedMarkCount: '0', changeLogs: [ { likeableId: '0', likeableType: 'changeLog', myLikeValue: '0', likeCount: '0', dislikeCount: '0', likeScore: '0', individualLikes: [], id: '13732', pageId: 'alternating_group_generated_by_three_cycles', userId: 'PatrickStevens', edit: '1', type: 'newRequiredBy', createdAt: '2016-06-17 21:41:18', auxPageId: 'alternating_group_five_is_simple', oldSettingsValue: '', newSettingsValue: '' }, { likeableId: '0', likeableType: 'changeLog', myLikeValue: '0', likeCount: '0', dislikeCount: '0', likeScore: '0', individualLikes: [], id: '13547', pageId: 'alternating_group_generated_by_three_cycles', userId: 'PatrickStevens', edit: '1', type: 'newEdit', createdAt: '2016-06-17 15:23:26', auxPageId: '', oldSettingsValue: '', newSettingsValue: '' }, { likeableId: '0', likeableType: 'changeLog', myLikeValue: '0', likeCount: '0', dislikeCount: '0', likeScore: '0', individualLikes: [], id: '13543', pageId: 'alternating_group_generated_by_three_cycles', userId: 'PatrickStevens', edit: '1', type: 'newRequirement', createdAt: '2016-06-17 15:23:19', auxPageId: 'sign_of_permutation_is_well_defined', oldSettingsValue: '', newSettingsValue: '' }, { likeableId: '0', likeableType: 'changeLog', myLikeValue: '0', likeCount: '0', dislikeCount: '0', likeScore: '0', individualLikes: [], id: '13541', pageId: 'alternating_group_generated_by_three_cycles', userId: 'PatrickStevens', edit: '1', type: 'newRequirement', createdAt: '2016-06-17 15:19:29', auxPageId: 'alternating_group', oldSettingsValue: '', newSettingsValue: '' }, { likeableId: '0', likeableType: 'changeLog', myLikeValue: '0', likeCount: '0', dislikeCount: '0', likeScore: '0', individualLikes: [], id: '13540', pageId: 'alternating_group_generated_by_three_cycles', userId: 'PatrickStevens', edit: '1', type: 'newParent', createdAt: '2016-06-17 15:18:37', auxPageId: 'alternating_group', oldSettingsValue: '', newSettingsValue: '' } ], feedSubmissions: [], searchStrings: {}, hasChildren: 'false', hasParents: 'true', redAliases: {}, improvementTagIds: [], nonMetaTagIds: [], todos: [], slowDownMap: 'null', speedUpMap: 'null', arcPageIds: 'null', contentRequests: {} }