Prove2Me

trunk tree sound

Proved
Freiman.trunk_tree_sound

by tp · Sep 9, 2026 · Mathlib 0df444a (Lean v4.33.1)

algebracontinued-fractionsformalization

Every valid source proof tree excludes its complete residual conjunction.

Preamble
import Definitions.Def_Freiman_trunkGeometry
import Mathlib.Tactic.FinCases
import Mathlib.Tactic.Linarith

open Freiman
Formal statement
theorem Freiman.trunk_tree_sound (C : TrunkCatalog) (hw : trunkAllWitnesses C) :
    TrunkTreeSound C := by
  sorry
Source
Report Proposition4.1 s15:trunk, printed report p28; original source pp120–126. Complete sixteen-state trunk certificate,58230 records,90 case plans, with three explicitly unfilled interfaces.

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