finsuppEquivDFinsupp

{ι : Type u_1} →
  {M : Type u_3} → [DecidableEq ι] → [inst : Zero M] → [(m : M) → Decidable (m ≠ 0)] → (ι →₀ M) ≃ Π₀ (x : ι), M

Finsupp.toDFinsupp and DFinsupp.toFinsupp together form an equiv.

Defined in: Mathlib.Data.Finsupp.ToDFinsupp
Cited by: 2 results in Mathlib
Foundations: Depth 82 from the axioms · uses propext, Classical.choice, Quot.sound
Assumes: DecidableEq Zero Decidable

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