Lean 4 verification portfolio: certified combinatorics, LRAT checking, toy robustness, and claim-boundary discipline.
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Jun 23, 2026 - Lean
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lrat
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Certificate-backed verification for known Schur and van der Waerden values, with explicit trusted bases.
combinatorics assurance reproducibility formal-verification sat proof-checking lrat schur-numbers claim-audit van-der-waerden
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Jun 19, 2026 - Python
SAT + verified LRAT certificate for a covering-system lower bound (Erdős #273), plus a segmented sieve extending verified ranges for #385 and #647 to 1.0011e12
mathematics computational-mathematics reproducibility formal-verification number-theory sat erdos cadical lrat covering-systems
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Jul 16, 2026 - Python
Certified, composable map of impossibility claims with machine-checkable certificates and explicit trust rungs.
scientific-computing assurance reproducibility formal-verification sat ai-safety proof-checking lrat claim-audit
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Jul 13, 2026 - Python
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