English
The zpow identity between a cycle permutation and subtype-permutation corresponds entrywise under isomorphisms of the cycle.
Русский
Zpow-свойство перестановки цикла соответствует поэлементно ограниченной перестановке.
LaTeX
$$$\\text{zpow_eq_ofSubtype_subtypePerm_iff}()$$$
Lean4
theorem pairwise_sameCycle_formPerm (hl : Nodup l) (hn : 2 ≤ l.length) : Pairwise l.formPerm.SameCycle l :=
Pairwise.imp_mem.mpr
(pairwise_of_forall fun _ _ hx hy =>
(isCycle_formPerm hl hn).sameCycle ((formPerm_apply_mem_ne_self_iff _ hl _ hx).mpr hn)
((formPerm_apply_mem_ne_self_iff _ hl _ hy).mpr hn))