Contract Validity and Mental Incapacity to Contract

The dispute centered on the validity of a contract where a party, allegedly suffering from a legally recognized mental disorder at the time of signing, sought annulment on the grounds of incapacity to consent. The court, upholding the lower court's decision, found that the mere existence of a mental illness or disorder did not automatically void the contract; rather, the party asserting nullity bore the burden of proving that the disorder was severe enough to negate their capacity to understand the nature and consequences of the agreement at the precise moment the contract was executed, and since this proof was lacking, the contract was deemed valid.