3. – 2. Reduction-improbation is an action whereby a person who may be hurt, or affected by a writing, insists for producing or exhibiting it in court, in order to have it set aside or its effects ascertained, under the certification, that the writing if not produced, shall be declared false and forged.
4. – 3. In an action of simple reduction, the certification is only temporary, declaring the writings called for, null, until they be produced; so that they recover their full force after their production. Ib. 4, 1, 8.