Finset.mem_map_equiv

∀ {α : Type u_1} {β : Type u_2} {s : Finset α} {f : α ≃ β} {b : β}, b ∈ Finset.map f.toEmbedding s ↔ f.symm b ∈ s

Defined in: Mathlib.Data.Finset.Image
Cited by: 3 results in Mathlib
Foundations: Depth 56 from the axioms · uses propext, Classical.choice, Quot.sound

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