other
CID incentives not abstraction-invariant
Lean spine source
formal/AlignmentProofSpine/Boundaries.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 cid_incentive_not_abstraction_invariant :
∃ a : Bool, ToyCIDNoMicroIncentive a ∧ ¬ ToyCIDNoMacroIncentive a :=
⟨false, trivial, by decide⟩
/-- C-ADV (P36): a distinguishing handle operation refines identification. -/