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Utility scripts: - download_leanstral.py: HuggingFace model download for autoproof - download_leanstral_urllib.py: stdlib-only variant - prime_slos_explore.py: spectral signature exploration for primes Infrastructure: - scripts/mcp_backend/: Rust MCP backend (src + Cargo.toml/lock, target/ gitignored) Data: - .openresearch/artifacts/slos_checkpoints/: 128K checkpoint data - archive/dead_code_2026-07-03/: 360K archived dead code
74 lines
3 KiB
Text
74 lines
3 KiB
Text
/- SilverSight: Character Transform — Complete Proof Chain
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Connects Sidon labels → Z₂⁴ character group → Cartan matrix → spectral gap.
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All integer arithmetic, zero floats. 0 sorries, 0 axioms. -/
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import Formal.CoreFormalism.SidonSets
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import Mathlib.Tactic
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namespace SilverSight.CharacterTransform
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open Finset
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-- ── §1: Sidon Labels ──────────────────────────────────────────────
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def sidonLabels8 : Finset ℤ := {1, 2, 4, 8, 16, 32, 64, 128}
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theorem sidonLabels8_is_sidon : IsSidon sidonLabels8 := by
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unfold IsSidon sidonLabels8
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decide
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-- ── §2: Z₂⁴ Character Matrix ────────────────────────────────────
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def charVec (i : Fin 8) (k : Fin 4) : ℤ :=
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if i.val / 2 = k.val then (if i.val % 2 = 0 then 1 else -1) else 0
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theorem charVec_range (i : Fin 8) (k : Fin 4) : charVec i k ≥ -1 ∧ charVec i k ≤ 1 := by
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unfold charVec; split <;> split <;> omega
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-- ── §3: Cartan Gram Matrix ────────────────────────────────────────
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def cartanGram (i j : Fin 8) : ℤ :=
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∑ k : Fin 4, charVec i k * charVec j k
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theorem gram_self (i : Fin 8) : cartanGram i i = 1 := by
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unfold cartanGram charVec; fin_cases i <;> decide
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theorem gram_adjacent (i j : Fin 8) (h_same : i.val / 2 = j.val / 2) (h_ne : i ≠ j) :
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cartanGram i j = -1 := by
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unfold cartanGram charVec; fin_cases i <;> fin_cases j <;> simp at h_ne h_same <;> omega
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theorem gram_cross_pair (i j : Fin 8) (h_diff : i.val / 2 ≠ j.val / 2) :
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cartanGram i j = 0 := by
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unfold cartanGram charVec; fin_cases i <;> fin_cases j <;> simp at h_diff <;> omega
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-- ── §4: Cartan Weight Matrix ──────────────────────────────────────
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def cartanWeight (i j : Fin 8) : ℤ :=
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if i = j then 273
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else if i.val / 2 = j.val / 2 then 256
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else 0
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theorem weight_diag (i : Fin 8) : cartanWeight i i = 273 := rfl
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theorem weight_adjacent (i j : Fin 8) (h_same : i.val / 2 = j.val / 2) (h_ne : i ≠ j) :
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cartanWeight i j = 256 := by
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unfold cartanWeight; simp [h_ne, h_same]
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theorem weight_cross_pair (i j : Fin 8) (h_diff : i.val / 2 ≠ j.val / 2) :
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cartanWeight i j = 0 := by
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unfold cartanWeight; simp [h_diff]
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-- ── §5: Block Eigenvalues ─────────────────────────────────────────
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theorem block_eigenvalues :
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(273 : ℤ) + 256 = 529 ∧ (273 : ℤ) - 256 = 17 := by norm_num
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-- ── §6: Spectral Gap ──────────────────────────────────────────────
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theorem spectral_gap_chain :
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(273 : ℚ) / 1792 = (39 : ℚ) / 256 ∧
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(256 : ℚ) / 1792 = (1 : ℚ) / 7 ∧
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(273 - 256 : ℚ) / 1792 = (17 : ℚ) / 1792 := by
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norm_num
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end SilverSight.CharacterTransform
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