Research-Stack/0-Core-Formalism/lean/external/OTOM/Evolution.lean

108 lines
3.5 KiB
Text

import Semantics.Witness
import Semantics.Canon
namespace Semantics.ENE
-- Evolution
--
-- Defines self-modification under constitution.
-- The system may change, but it must never become alien to its own audit surface.
/-- A record of a single self-modification event. -/
structure SelfModification where
id : Nat
description : String
priorState : Graph
postState : Graph
witness : Witness
timestamp : Float
deriving Repr
/-- An audit surface is the set of nodes and edges that must remain inspectable
after any evolution step. -/
structure AuditSurface where
requiredNodes : List Node
requiredEdges : List Edge
transparency : Float -- 0.0 to 1.0
deriving Repr, BEq
/-- An evolution contract governs how the graph may change. -/
structure EvolutionContract where
contractId : Nat
preservesAuditSurface : SelfModification → AuditSurface → Bool
replayable : SelfModification → Bool
preservesConstitution : SelfModification → UniverseConstitution → Bool
/-- An evolution step is admissible if it satisfies the contract. -/
def EvolutionAdmissible
(mod : SelfModification)
(contract : EvolutionContract)
(surface : AuditSurface)
(constitution : UniverseConstitution) : Prop :=
contract.preservesAuditSurface mod surface = true ∧
contract.replayable mod = true ∧
contract.preservesConstitution mod constitution = true
-- Evolution theorems (anti-insect / anti-epistemic-erasure laws)
/-- No evolution without auditability. -/
theorem no_evolution_without_auditability
(mod : SelfModification)
(contract : EvolutionContract)
(surface : AuditSurface)
(constitution : UniverseConstitution)
(h : EvolutionAdmissible mod contract surface constitution) :
contract.preservesAuditSurface mod surface = true := by
unfold EvolutionAdmissible at h
exact h.1
/-- No evolution without replayability. -/
theorem no_evolution_without_replayability
(mod : SelfModification)
(contract : EvolutionContract)
(surface : AuditSurface)
(constitution : UniverseConstitution)
(h : EvolutionAdmissible mod contract surface constitution) :
contract.replayable mod = true := by
unfold EvolutionAdmissible at h
exact h.2.1
/-- No epistemic self-erasure: the constitution must survive evolution. -/
theorem no_epistemic_self_erasure
(mod : SelfModification)
(contract : EvolutionContract)
(surface : AuditSurface)
(constitution : UniverseConstitution)
(h : EvolutionAdmissible mod contract surface constitution) :
contract.preservesConstitution mod constitution = true := by
unfold EvolutionAdmissible at h
exact h.2.2
/-- Capability legibility is coupled to evolution:
a valid modification must be replayable, ensuring its capability impact
remains inspectable. -/
theorem capability_legibility_coupled
(mod : SelfModification)
(contract : EvolutionContract)
(surface : AuditSurface)
(constitution : UniverseConstitution)
(h : EvolutionAdmissible mod contract surface constitution) :
contract.replayable mod = true := by
unfold EvolutionAdmissible at h
exact h.2.1
/-- Atomic grounding is preserved under evolution if the post-state graph
contains all atoms referenced by the modification witness. -/
def preservesAtomicGrounding (mod : SelfModification) : Prop :=
∀ a ∈ mod.witness.preservedAtoms,
∃ n ∈ mod.postState.nodes,
n.type = NodeType.atom ∧ n.label = atomLabel a
/-- Projection faithfulness is preserved if the post-state graph
contains no active quarantined edges. -/
def preservesProjectionContract (mod : SelfModification) : Prop :=
mod.postState.noActiveQuarantine
end Semantics.ENE