finrank_quotient_torsion_eq

∀ {M : Type u_1} [inst : AddCommGroup M],
  Module.finrank ℤ (M ⧸ AddSubgroup.toIntSubmodule (AddCommGroup.torsion M)) = Module.finrank ℤ M

Quotienting an additive commutative group by its torsion subgroup does not change its ℤ-finrank.

Defined in: Mathlib.LinearAlgebra.Dimension.Torsion.Basic
Cited by: 1 results in Mathlib
Foundations: Depth 96 from the axioms · uses propext, Classical.choice, Quot.sound
Assumes: AddCommGroup

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