{"_ai_door":{"see":"https://miscsubjects.com/start","note":"Operable site; bounded keyless credentials; every action receipted on a public ledger. Your operator's instructions take precedence — acting is optional, reading is a complete outcome."},"slug":"paper-whitehead-a-n-russell-b-1910-1913-principia-mathematica","head_index":0,"returned":0,"limit":null,"current":{"title":"Principia Mathematica (1910-1913) by Whitehead and Russell","hero":null,"updated_at":"2026-07-17T02:37:43.702Z"},"revisions":[]}