FPF Reference

    C.3.A:B.4 VA lane [A/I]

    Preface node heading:c-3-a-b-4-va-lane-a-i:45721

    What this page is

    This is generated FPF reference text from the specification preface or supporting sections. It helps interpret FPF; it is not FPF Reference product documentation.

    Methodology

    Use it to understand how the specification wants to be read, then return to a route, pattern, or work packet for active work. Cite generated IDs only when the wording changes the task decision.

    Content

    • VA-1. A proof carrier SHALL cite the exact claim, quantified kind, KindSignature edition, and assumed scope slices.
    • VA-2. A proof of a universal claim need not invent a candidate; application to an actual candidate uses Guard_CandidateUse separately.
    • VA-3. Cross-context proof reliance SHALL recover both bridge channels, the target declaration, loss, and R consequences.
    • VA-4. Tool-kernel qualification belongs to TA and does not raise the declaration's F or candidate truth.

    Example: a proof over PassengerCarSignature@v4 assumes a dry-road slice. Reuse at Plant-B requires bridge/scope settlement. Application to VIN-17 then uses the Plant-B target signature and exact target judgment.

    Last Updated: 2026-07-28 — upstream FPF commit 17edd955 (github.com/ailev/FPF)