Equiv.Perm.exists_map_finset_eq

∀ {β : Type u_2} (s t : Finset β), s.card = t.card → ∃ σ, Finset.map (Equiv.toEmbedding σ) s = t

Any two same-cardinality finsets are related by a permutation.

Defined in: Mathlib.Logic.Equiv.Fintype
Cited by: 0 results in Mathlib
Foundations: Depth 81 from the axioms · uses propext, Classical.choice, Quot.sound

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