Finsupp.uniqueEquiv

{α : Type u_1} → {M : Type u_5} → [inst : Zero M] → α → [Subsingleton α] → (α →₀ M) ≃ M

If α has a unique term, then finitely supported functions α →₀ M are in bijection with M.

Defined in: Mathlib.Data.Finsupp.Single
Cited by: 7 results in Mathlib
Foundations: Depth 62 from the axioms · uses propext, Classical.choice, Quot.sound
Assumes: Zero Subsingleton

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