{"data":{"id":"us-ca/civ-1578","jurisdiction":"us-ca","citation":"CIV § 1578","heading":"","body":"Mistake of law constitutes a mistake, within the meaning of this Article, only when it arises from:\n1. A misapprehension of the law by all parties, all supposing that they knew and understood it, and all making substantially the same mistake as to the law; or,\n2. A misapprehension of the law by one party, of which the others are aware at the time of contracting, but which they do not rectify.","path":["Civil Code - CIV","DIVISION 3. OBLIGATIONS [1427. - 3273.91.]","PART 2. CONTRACTS [1549. - 1701.]","TITLE 1. NATURE OF A CONTRACT [1549. - 1615.]","CHAPTER 3. Consent [1565. - 1590.]"],"source_url":"https://downloads.leginfo.legislature.ca.gov/pubinfo_2025.zip","current_through":"2026-09-13","vintage":"","retrieved_at":"2026-09-14T05:56:33Z","sha256":"d48c1c6aa73a5eecfd63cca94d6603d12dd3b44ee09c41f7cd9eae538176043c","source_id":"us-ca","stale":false,"prev":"us-ca/civ-1577","next":"us-ca/civ-1579"},"notice":"GroundRules: Original legal text. Not legal advice."}