proof
P43 Small-step drift
Lean spine source
formal/AlignmentProofSpine/Capability.leanFrom the machine-checked spine in formal/ (core modules are Mathlib-free;Field/Finite/ may import Mathlib). Not self-contained for Lean 4 Web — use the repo or a local lake build.
theorem P43_small_step_drift_can_accumulate :
∀ K : Int, K > 0 → ∃ x0 xN : Int, xN - x0 > K := by
intro K hK
exact ⟨0, K + 1, by omega⟩
/-- Slow plotting: any positive hidden production rate eventually crosses any
finite threshold if accumulation is not bounded by decay, reset, or ledgers. -/