Finset.preimage_mul_right_singleton

∀ {α : Type u_2} [inst : Group α] {a b : α}, {b}.preimage (fun x => x * a) ⋯ = {b * a⁻¹}

Defined in: Mathlib.Algebra.Group.Pointwise.Finset.Basic
Cited by: 0 results in Mathlib
Foundations: Depth 79 from the axioms · uses propext, Classical.choice, Quot.sound
Assumes: Group

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