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Theorems · Definition · group theory

Fin.cycleIcc

{n : ℕ} → Fin n → Fin n → Equiv.Perm (Fin n)

cycleIcc i j is the cycle (i i+1 ... j) leaving (0 ... i-1) and (j+1 ... n-1) unchanged when i < j and returning the dummy value id when i > j. In other words, it rotates elements in [i, j] one step to the right.

Defined in
Mathlib.GroupTheory.Perm.Fin
Cited by
22 results in Mathlib
Foundations
Depth 65 from the axioms · uses propext, Classical.choice, Quot.sound

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Cited by22

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