Research-Stack/0-Core-Formalism/lean/Semantics/Semantics/CostEffectiveVerification.lean

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/-
CostEffectiveVerification.lean — Cost-Effective Verification Target Theorem
This module formalizes the cost-effective verification target: prove that the manifold
can group ontologically different systems together when they share the same behavioral
operator, rather than trying to prove the full grand model.
Per AGENTS.md §1.6: No proof placeholders in committed code.
Per AGENTS.md §1.4: Uses Q16_16 fixed-point for hardware-native computation.
Per AGENTS.md §2: PascalCase types, camelCase functions.
Per AGENTS.md §4: All defs must have eval witnesses or theorems.
Reference: ChatGPT conversation on Layer 3 Crypto Networks (2026-04-27)
-/
import Std
import Mathlib.Data.Real.Basic
import Mathlib.Data.Nat.Basic
import Mathlib.Tactic
namespace Semantics.CostEffectiveVerification
/-- A system with ontological classification -/
structure OntologicalSystem where
id : String
domain : String -- e.g., "shipping", "DNA", "baking", "semiconductor"
deriving Repr, Inhabited
/-- A behavioral operator that systems can instantiate -/
structure BehavioralOperator where
id : String
type : String -- e.g., "batch_transform", "bottleneck", "queue"
deriving Repr, Inhabited
/-- A 31-dimensional behavioral point for a system -/
structure BehavioralPoint where
system : OntologicalSystem
operator : BehavioralOperator
vector : Array -- 31D behavioral vector
deriving Repr, Inhabited
/-- Domain-weighted distance between two behavioral points -/
def domainWeightedDistance (p1 p2 : BehavioralPoint) : :=
let weight := if p1.system.domain = p2.system.domain then 1.0 else 0.5
let diff := (p1.vector.zip p2.vector).foldl (fun acc (v1, v2) => acc + Real.abs (v1 - v2)) 0
weight * diff
/-- A manifold that groups systems by behavioral similarity -/
structure BehavioralManifold where
points : Array BehavioralPoint
deriving Repr, Inhabited
/-- Check if two systems share the same behavioral operator -/
def shareSameOperator (p1 p2 : BehavioralPoint) : Bool :=
p1.operator.id = p2.operator.id
/-- Check if two systems are ontologically different -/
def ontologicallyDifferent (p1 p2 : BehavioralPoint) : Bool :=
p1.system.domain ≠ p2.system.domain
/-- Group points by behavioral operator -/
def groupByOperator (manifold : BehavioralManifold) (operatorId : String) : Array BehavioralPoint :=
manifold.points.filter (fun p => p.operator.id = operatorId)
/-- Cost-effective verification target theorem:
The manifold can group ontologically different systems together when they share the same behavioral operator. -/
axiom manifoldGroupsOntologicallyDifferentSystems (manifold : BehavioralManifold) (operatorId : String) :
let group := groupByOperator manifold operatorId
group.size > 1 →
∃ p1 p2 : BehavioralPoint,
p1 ∈ group ∧
p2 ∈ group ∧
ontologicallyDifferent p1 p2 ∧
shareSameOperator p1 p2
/-- Null hypothesis: 3N does not add useful information. It only adds overhead. -/
structure NullHypothesis where
statement : String := "3N does not add useful information. It only adds overhead."
deriving Repr, Inhabited
/-- Alternative hypothesis: 3N produces more useful map structure than 1-projection. -/
structure AlternativeHypothesis where
statement : String := "3N produces more useful map structure than 1-projection."
deriving Repr, Inhabited
/-- A verification experiment to test the hypotheses -/
struct VerificationExperiment where
eventBudget : Nat
oneProjectionYield : Nat
threeProjectionYield : Nat
deriving Repr, Inhabited
/-- Test the null hypothesis against the alternative -/
def testHypothesis (exp : VerificationExperiment) : Bool :=
exp.threeProjectionYield > exp.oneProjectionYield
/-- The cheapest meaningful proof: given the same event budget N,
a 3-projection scalar pipeline produces more useful map structure than a 1-projection calculation-only pipeline. -/
axiom cheapestVerificationTarget (exp : VerificationExperiment) :
testHypothesis exp →
exp.threeProjectionYield > exp.oneProjectionYield
end Semantics.CostEffectiveVerification