1172. An admission is extra-judicial or judicial. It cannot be divided against the party making it.
1173. An extra-judicial admission must be proved by writing or the oath of the party against whom it is set up, except in the cases in which according to the rules of this Chapter, proof by oral testimony is admissible.
1174. A judicial admission is complete proof against the party making it.
It cannot be revoked unless made through an error of fact.