Machine-checked Lean 4 proofs for "The Non-Locality of Extendability." Forward-case impossibility result for bounded information systems: the divergence kernel, horizon non-convergence, structural admissibility lemmas, and witnesses distinguishing extendability from POMDP observability and viability.
theorem-proving formal-verification ai-safety mathlib extendability lean4 impossibility-theorem admissibility-dynamics forward-locality bounded-information-systems
-
Updated
May 19, 2026 - Lean