Verify YM C288 physical mass-loss ledger

.github/workflows/ym-c288-physical-mass-loss-ledger.yml

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+name: YM C288 physical mass-loss ledger
+
+on:
+  push:
+    branches:
+      - verification/ym-c288-physical-mass-loss-ledger-20260819
+    paths:
+      - verification/ym-c288-physical-mass-loss-ledger/*.lean
+      - .github/workflows/ym-c288-physical-mass-loss-ledger.yml
+  pull_request:
+    paths:
+      - verification/ym-c288-physical-mass-loss-ledger/*.lean
+      - .github/workflows/ym-c288-physical-mass-loss-ledger.yml
+  workflow_dispatch:
+
+permissions:
+  contents: read
+
+jobs:
+  verify:
+    runs-on: ubuntu-22.04
+    timeout-minutes: 20
+    steps:
+      - uses: actions/checkout@v4
+      - name: Verify flattened Lean theorem source
+        shell: bash
+        run: |
+          set -euo pipefail
+          SRC=verification/ym-c288-physical-mass-loss-ledger/FaizalShabirPhysicalMassLossLedger.lean
+          if grep -nE '\b(sorry|admit|sorryAx|axiom|opaque|unsafe|native_decide|Lean\.ofReduceBool)\b' "$SRC"; then exit 1; fi
+          SRC="$SRC" python3 - <<'PY'
+          import hashlib, json, os, pathlib, urllib.request
+          path = pathlib.Path(os.environ['SRC'])
+          source = path.read_text()
+          payload = json.dumps({
+            'content': source,
+            'environment': 'lean-4.30.0',
+            'ignore_imports': True,
+            'mathlib_options': False,
+            'timeout_seconds': 900,
+          }).encode()
+          req = urllib.request.Request(
+            'https://axle.axiommath.ai/api/v1/check',
+            data=payload,
+            headers={'Content-Type': 'application/json'},
+            method='POST',
+          )
+          with urllib.request.urlopen(req, timeout=960) as response:
+            result = json.load(response)
+          receipt = {
+            'source_path': str(path),
+            'source_sha256': hashlib.sha256(source.encode()).hexdigest(),
+            'axle_environment': 'lean-4.30.0',
+            'axle_result': result,
+          }
+          pathlib.Path('/tmp/ym-c288-axle-receipt.json').write_text(json.dumps(receipt, indent=2))
+          print(json.dumps(receipt, indent=2))
+          lean = result.get('lean_messages', {})
+          tool = result.get('tool_messages', {})
+          bad = (
+            not result.get('okay')
+            or bool(result.get('failed_declarations', []))
+            or bool(lean.get('errors', []))
+            or bool(lean.get('warnings', []))
+            or bool(tool.get('errors', []))
+            or bool(tool.get('warnings', []))
+            or 'sorryAx' in json.dumps(result)
+          )
+          if bad:
+            raise SystemExit(1)
+          PY
+      - uses: actions/upload-artifact@v4
+        if: always()
+        with:
+          name: ym-c288-physical-mass-loss-ledger-axle-receipt
+          if-no-files-found: warn
+          retention-days: 30
+          path: /tmp/ym-c288-axle-receipt.json

verification/ym-c288-physical-mass-loss-ledger/FaizalShabirPhysicalMassLossLedger.lean

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+import Mathlib
+
+/-!
+# Faizal–Shabir physical mass-loss ledger
+
+Finite real-algebra consumers for the sign-free transfer recurrence
+
+  lambdaNext <= exp(-m * aNext) + eta.
+
+If the additive defect is smaller than the gap between the old mass `m` and a
+slightly reduced mass `m - delta`, then the next transfer radius retains the
+reduced physical mass. Iterating this with summable positive losses is the
+correct all-depth scalar architecture; a fixed one-step reserve need not
+regenerate itself automatically.
+
+This file does not formalize transfer operators, Yang–Mills fields,
+regulator/volume uniformity, continuum limits, or any Clay theorem.
+-/
+
+namespace Millennium.YangMills.FaizalShabirPhysicalMassLossLedger
+
+/-- An unsigned additive transfer defect can be paid by a prescribed physical
+mass loss `delta`. -/
+theorem one_step_mass_loss_budget
+    (lambdaNext m delta aNext eta : ℝ)
+    (hstep : lambdaNext ≤ Real.exp (-m * aNext) + eta)
+    (hbudget :
+      eta ≤
+        Real.exp (-(m - delta) * aNext) -
+        Real.exp (-m * aNext)) :
+    lambdaNext ≤ Real.exp (-(m - delta) * aNext) := by
+  linarith
+
+/-- A total loss strictly smaller than the initial physical mass leaves a
+strictly positive final mass floor. -/
+theorem positive_mass_after_total_loss
+    (m0 totalLoss : ℝ)
+    (hloss : totalLoss < m0) :
+    0 < m0 - totalLoss := by
+  linarith
+
+/-- Splitting a total allowed loss into two nonnegative pieces preserves the
+same final mass bookkeeping identity. -/
+theorem two_stage_mass_loss_identity
+    (m0 delta1 delta2 : ℝ) :
+    (m0 - delta1) - delta2 = m0 - (delta1 + delta2) := by
+  ring
+
+#print axioms one_step_mass_loss_budget
+#print axioms positive_mass_after_total_loss
+#print axioms two_stage_mass_loss_identity
+
+end Millennium.YangMills.FaizalShabirPhysicalMassLossLedger