Transport of bounded independence through injective homomorphisms #
theorem
Wallace.FiniteCombinatorics.boundedIndependent_of_image
{G : Type u}
{H : Type v}
[AddCommGroup G]
[AddCommGroup H]
[DecidableEq H]
(f : G →+ H)
(hf : Function.Injective ⇑f)
{M : ℕ}
{X : Finset G}
(himage : BoundedIndependent M (Finset.image (⇑f) X))
:
Bounded independence is reflected by an injective additive homomorphism.