Proof of `Finite linear images and their uniform-law density bounds` (5th statement)
groundedproofs/Lax342547Proofs/FiniteLinearLaw.lean · lax-342547
What this proof establishes
no assumptions
Assuming the claims on the left, the claim on the right holds — checked by the archive's pipeline. Proof code is not displayed here.
Description
All fibers of a surjective linear map are translates of its kernel. Rank-nullity therefore gives equal normalized mass at every output.