other22 binding context 5

Proved

Freiman.other22_binding_context_5

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

algebracontinued-fractionsformalization

Context 313: bind all 32 explicit residual records to the independently computed source DNF and endpoint cases; certify witness-premise membership, rectangle identity and complete two-alternative branch coverage.

Preamble

import Definitions.Def_Freiman_other22Verification
import Mathlib.Tactic.FinCases
import Mathlib.Tactic.SplitIfs

open Freiman

Formal statement

theorem Freiman.other22_binding_context_5 :
    other22CaseBinding 4 := by
  sorry

Source

Report §7.3, Lemma 7.4 (lem:old23-other22-target), printed p.43; other22_target.tex and Appendix other22_certificates.tex; original 144-obligation exact certificate.

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