‹ Article 31 - Validity of agreement Article 32 - Initial impossibility › Part 4: Validity Article 32 - Initial impossibility Article 33 - Relevant mistake Article 34 - Remedies for non-performance Article 35 - Misrepresentation Article 36 - Threat Article 37 - Illegality Article 38 - Confirmation Article 39 - Loss of right to avoid Article 40 - Notice of avoidance Article 41 - Time limits Article 42 - Retroactive effect of avoidance Article 43 - Damages Article 44 - Mandatory character of the provisions of Part 4 ‹ Article 31 - Validity of agreement Article 32 - Initial impossibility ›