Unlike Argentine

Article 1827.-positive or negative, the contract must be: i. possible; II. lawful. Art. 1828.-it is impossible the fact that cannot exist because it is inconsistent with a law of nature or with a legal norm which should govern it necessarily and which constitutes an insurmountable obstacle to its realization. Article 1829.-not consider impossible the fact that can not be run by the obligor, but if by someone else instead of the.

Art. 1830.-it is illicit public the fact that it is contrary to the laws of order or customs good wings. 1831 Article.-the end or reason determinant of the desire of those who are engaged should not be contrary to the laws of order public or morality. VII. conclusions.-the contract is a kind of legal act, it is not conceivable that in our civil code, its objects are different.

in this regard, the Argentine civil code (Art. 1167) makes the relevant accuracy (Art. 1167). The Bolivian civil code, as well as the Spanish (Art. 719) uses synonymously the terms of agreement and Convention. but, if we consider that the contracts are by nature economic legal relationships and agreements, the extrapatrimoniales; such synonymy wouldn’t be well employed. The civil code Spanish (Art. 1271) not considered as impediment the breach of the order public in the subject of the contract. Mexican, Spanish and Peruvian civil codes considered that the subject of the contract not only must be lawful and ascertainable, but also possible. Unlike Argentine and Bolivian civil codes, that only refer to must be ascertainable at least in kind. The civil codes of Argentina, Spain and Mexico can make the object of the contract on future property. VIII. legislative proposal.-taking as premise, that the legal act is the genre and the contract, the species: section 1403 of the DC should reform so so not it contradicts with article 140 thereof; Since while the first refers to the object of the contract is its legality, the second expresses that the object of the legal act must be physically and legally possible.