Proof of `Trimming a restricted family of exact-pin leaves` (1st statement)
groundedproofs/Lax342547Proofs/RestrictedLeaves.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
Use the combined retained mass to bound discarded weight. Every retained leaf has a positive restriction mass, and its normalization preserves all quotient-rank image tests with the stated loss. Retain exact weighted recovery and the explicit absolute joint density factor.