Freiman marked initial bridges: survivor transfer

import Definitions.Def_Freiman_lowerBridgeCatalog
import Mathlib.Tactic.Linarith
import Mathlib.Tactic.Push

open Freiman

theorem Freiman.lower_bridge_survivor_transfer (hfrac : ∀ (w : List ℕ+) (t : ℝ), 0 < t → prefixEval w t = lowerInitialMatEval (lowerInitialWordMatrix w) t ∧ 0 < lowerInitialMatDen (lowerInitialWordMatrix w) t ∧ (lowerInitialWordMatrix w).a*(lowerInitialWordMatrix w).d - (lowerInitialWordMatrix w).b*(lowerInitialWordMatrix w).c = (-1:ℝ)^w.length) (c : LowerBridgeCase) (n k : ℕ) (hc : lowerBridgeZero c = decide (n=0)) (hm : lowerInitialSeamLink (lowerBridgeSeamCase c) n (lowerBridgeK c k) 0) (hn : lowerBridgeNumeric c (lowerInitialX n) (lowerInitialY k)) (hw : ∀ r ∈ lowerBridgeRecords c, r.kind = .width → lowerBridgeRecordFact c n k r) (r : LowerBridgeRecord) (hr : r ∈ lowerBridgeRecords c) (hk : r.kind = .h7 ∨ r.kind = .notA9) : lowerBridgeRecordFact c n k r := by
  sorry