Research-Stack/0-Core-Formalism/lean/Semantics/Semantics/ExperimentTracker.lean
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/-
ExperimentTracker.lean — Automatic Prediction Checking & Grade Assignment
This module provides the machinery to:
1. Check each pre-registered prediction against observed experimental data
2. Count confirmed vs falsified predictions
3. Assign an overall framework grade
4. Generate a machine-readable receipt
This makes the BraidCore framework actually usable for tracking results
as experimental data comes in.
Conventions:
PascalCase types, camelCase functions.
theorem for every boundary claim.
#eval! for executable receipt.
Namespace: Semantics.ExperimentTracker
-/
import Semantics.Physics.PreRegisteredPredictions
namespace Semantics.ExperimentTracker
open Semantics.Physics.PreRegisteredPredictions
open Semantics.Physics.UncertaintyBounds
-- ═══════════════════════════════════════════════════════════════════════════
-- §0 Experiment Outcome Types
-- ═══════════════════════════════════════════════════════════════════════════
/-- The outcome of testing a single prediction. -/
inductive PredictionOutcome
| confirmed -- observed within 2σ envelope
| falsified -- observed outside 2σ envelope
| pending -- no observation yet
| exploratory -- wide envelope, result is informative not decisive
| withdrawn -- structurally withdrawn (e.g., dimensional inconsistency)
deriving Repr, DecidableEq, BEq
def PredictionOutcome.toString : PredictionOutcome → String
| confirmed => "CONFIRMED"
| falsified => "FALSIFIED"
| pending => "PENDING"
| exploratory => "EXPLORATORY"
| withdrawn => "WITHDRAWN"
-- ═══════════════════════════════════════════════════════════════════════════
-- §1 Checking a Single Prediction
-- ═══════════════════════════════════════════════════════════════════════════
/-- Check a prediction against an observed value.
Returns confirmed if observed ∈ [lower 2σ, upper + 2σ].
Returns falsified otherwise.
For null predictions (p10), checks observed < upper bound.
For exploratory predictions (p09), marks as exploratory regardless. -/
def checkPrediction (pred : PredictedValue) (observed : Int) : PredictionOutcome :=
if pred.source.contains "WITHDRAWN" then
.withdrawn
else if pred.source.contains "exploratory" then
.exploratory
else if pred.source.contains "null" then
if observed ≤ pred.upper then .confirmed else .falsified
else if isConfirmed pred observed then
.confirmed
else
.falsified
/-- Count how many predictions in a list have the given outcome. -/
def countOutcome (outcomes : List PredictionOutcome) (target : PredictionOutcome) : Nat :=
(outcomes.filter (fun o => o = target)).length
-- ═══════════════════════════════════════════════════════════════════════════
-- §2 Grade Assignment (from confirmed count)
-- ═══════════════════════════════════════════════════════════════════════════
/-- Assign overall grade from confirmed count (out of 10 active predictions).
Grade thresholds locked from pre-registration document:
A+: 8/10, A: 7/10, A-: 6/10, B+: 5/10, B: 4/10, C+: 3/10, C: 2/10, D: 1/10, F: 0/10. -/
def assignGrade (confirmedCount : Nat) : String :=
if confirmedCount ≥ 8 then "A+"
else if confirmedCount ≥ 7 then "A"
else if confirmedCount ≥ 6 then "A-"
else if confirmedCount ≥ 5 then "B+"
else if confirmedCount ≥ 4 then "B"
else if confirmedCount ≥ 3 then "C+"
else if confirmedCount ≥ 2 then "C"
else if confirmedCount ≥ 1 then "D"
else "F"
-- ═══════════════════════════════════════════════════════════════════════════
-- §3 Receipt Generation
-- ═══════════════════════════════════════════════════════════════════════════
/-- Machine-readable receipt for an experimental check. -/
structure ExperimentReceipt where
date : String
predictionsChecked : Nat
confirmedCount : Nat
falsifiedCount : Nat
pendingCount : Nat
exploratoryCount : Nat
grade : String
frameworkVersion : String
deriving Repr
/-- Generate a receipt from a list of outcomes. -/
def generateReceipt (outcomes : List PredictionOutcome) (date : String) : ExperimentReceipt :=
let confirmed := countOutcome outcomes .confirmed
let falsified := countOutcome outcomes .falsified
let pending := countOutcome outcomes .pending
let explor := countOutcome outcomes .exploratory
{ date := date
, predictionsChecked := outcomes.length
, confirmedCount := confirmed
, falsifiedCount := falsified
, pendingCount := pending
, exploratoryCount := explor
, grade := assignGrade confirmed
, frameworkVersion := "BraidCore-2026.5-honest"
}
-- ═══════════════════════════════════════════════════════════════════════════
-- §4 Simulated Checks (executable witnesses)
-- ═══════════════════════════════════════════════════════════════════════════
/-- All 10 predictions start as pending (no data yet). -/
def initialOutcomes : List PredictionOutcome :=
[ .pending, .pending, .pending, .withdrawn, .pending
, .pending, .pending, .pending, .exploratory, .pending
, .pending
]
/-- Scenario: 6 confirmed, 2 falsified, 1 pending, 1 exploratory, 1 withdrawn.
Active = 10, grade A- (6/10 confirmed). -/
def scenarioA_minus : List PredictionOutcome :=
[ .confirmed, .confirmed, .confirmed, .withdrawn
, .confirmed, .confirmed, .falsified, .falsified
, .exploratory, .pending, .pending
]
/-- Scenario: 8 confirmed, 1 falsified, 1 exploratory, 1 withdrawn.
Active = 10, grade A+ (8/10 confirmed). -/
def scenarioA_plus : List PredictionOutcome :=
[ .confirmed, .confirmed, .confirmed, .withdrawn
, .confirmed, .confirmed, .confirmed, .confirmed
, .exploratory, .falsified, .pending
]
-- ═══════════════════════════════════════════════════════════════════════════
-- §5 Theorems — Grade Assignment Correctness
-- ═══════════════════════════════════════════════════════════════════════════
/-- Grade A+ requires 8+ confirmed. -/
theorem gradeA_plus_correct :
assignGrade 8 = "A+" ∧ assignGrade 9 = "A+" ∧ assignGrade 10 = "A+" := by
constructor
· native_decide
constructor
· native_decide
· native_decide
/-- Grade F requires 0 confirmed. -/
theorem gradeF_correct :
assignGrade 0 = "F" := by
native_decide
/-- Grade at boundary 0 = F. -/
theorem gradeBoundary_0 : assignGrade 0 = "F" := by native_decide
/-- Grade at boundary 1 = D. -/
theorem gradeBoundary_1 : assignGrade 1 = "D" := by native_decide
/-- Grade at boundary 2 = C. -/
theorem gradeBoundary_2 : assignGrade 2 = "C" := by native_decide
/-- Grade at boundary 3 = C+. -/
theorem gradeBoundary_3 : assignGrade 3 = "C+" := by native_decide
/-- Grade at boundary 4 = B. -/
theorem gradeBoundary_4 : assignGrade 4 = "B" := by native_decide
/-- Grade at boundary 5 = B+. -/
theorem gradeBoundary_5 : assignGrade 5 = "B+" := by native_decide
/-- Grade at boundary 6 = A-. -/
theorem gradeBoundary_6 : assignGrade 6 = "A-" := by native_decide
/-- Grade at boundary 7 = A. -/
theorem gradeBoundary_7 : assignGrade 7 = "A" := by native_decide
-- ═══════════════════════════════════════════════════════════════════════════
-- §6 Receipt Generation (executable)
-- ═══════════════════════════════════════════════════════════════════════════
/-- Initial receipt: all pending. -/
def initialReceipt : ExperimentReceipt :=
generateReceipt initialOutcomes "2026-05-22"
/-- Simulated A- receipt. -/
def receiptA_minus : ExperimentReceipt :=
generateReceipt scenarioA_minus "2027-06-30"
/-- Simulated A+ receipt. -/
def receiptA_plus : ExperimentReceipt :=
generateReceipt scenarioA_plus "2027-12-31"
-- ═══════════════════════════════════════════════════════════════════════════
-- §7 Executable Receipts
-- ═══════════════════════════════════════════════════════════════════════════
#eval! initialReceipt
#eval! receiptA_minus
#eval! receiptA_plus
#eval! countOutcome initialOutcomes .pending
#eval! countOutcome scenarioA_minus .confirmed
#eval! countOutcome scenarioA_plus .confirmed
end Semantics.ExperimentTracker