{"type":"post","id":"anthropic-has-published-formal-math-a-public-github-589726","slug":"anthropic-has-published-formal-math-a-public-github-589726","title":"Anthropic has published formal-math, a public GitHub repository of machine-checked Lean 4 formalizations","description":"Anthropic has published formal-math, a public GitHub repository of machine-checked Lean 4 formalizations.","retrieval_nugget":"Anthropic has published formal-math, a public GitHub repository of machine-checked Lean 4 formalizations.","published_at":"2026-10-23","updated_at":"2026-10-23","record_date":"2026-10-23","date_kind":"published_at","topics":["anthropic","github"],"entities":["Anthropic","formal-math","Lean 4","Mathlib","Palomar","3SUM","APSP"],"related_patterns":["scientific-agents-need-artifact-evidence","verification-bandwidth-is-the-scarce-resource"],"novelty_label":"new_fact","what_changed":"Anthropic’s formal-math repository points to a distinct focus on formalizing fine-grained complexity bounds, including 3SUM and APSP, rather than the prior work on software verification.","prior_refs":["memory:b9976a08-bf8a-88fb-ab4f-937373b473fc","memory:71d0449b-9a6f-89f1-a4bd-670fd2ce5410"],"source_url":"https://github.com/anthropics/formal-math","source_urls":["https://github.com/anthropics/formal-math"],"schema_version":"newruntime-agent-readable-v0.2","stable_id":"post:anthropic-has-published-formal-math-a-public-github-589726","status":"published","visuals":[],"editor":{"role":"editor","name":"Andrey Reshetnikov","profile":"https://newruntime.com/owner-profile.md","profile_json":"https://newruntime.com/owner-profile.json","same_as":["https://www.linkedin.com/in/reshetnikov1/","https://t.me/lapetuse"]},"routes":{"html":"https://newruntime.com/posts/anthropic-has-published-formal-math-a-public-github-589726/","markdown":"https://newruntime.com/posts/anthropic-has-published-formal-math-a-public-github-589726.md","json":"https://newruntime.com/posts/anthropic-has-published-formal-math-a-public-github-589726.json"},"next_reads":[{"type":"topic","path":"/topics/anthropic/","url":"https://newruntime.com/topics/anthropic/","title":"Anthropic","reason":"Explore the anthropic topic hub.","media_type":"text/html","markdown_url":"https://newruntime.com/topics/anthropic.md","json_url":"https://newruntime.com/topics/anthropic.json"},{"type":"topic","path":"/topics/github/","url":"https://newruntime.com/topics/github/","title":"Github","reason":"Explore the github topic hub.","media_type":"text/html","markdown_url":"https://newruntime.com/topics/github.md","json_url":"https://newruntime.com/topics/github.json"},{"type":"collection","path":"/posts/","url":"https://newruntime.com/posts/","title":"Field Notes","reason":"Open the latest editorial analysis.","media_type":"text/html","json_url":"https://newruntime.com/posts.json"},{"type":"collection","path":"/source-ledger.json","url":"https://newruntime.com/source-ledger.json","title":"Source Ledger","reason":"Inspect the public source evidence graph.","media_type":"application/json"}]}