WithZero.logEquiv

{G : Type u_5} → [inst : AddGroup G] → (WithZero (Multiplicative G))ˣ ≃ G

The logarithm as an equivalence between (Gᵐ⁰)ˣ and G.

Defined in: Mathlib.Algebra.GroupWithZero.WithZero
Cited by: 4 results in Mathlib
Foundations: Depth 28 from the axioms · uses propext, Classical.choice, Quot.sound
Assumes: AddGroup

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