In theme of arbitration, the penalty of nullity foreseen by the article 829, first paragraph, n. 11), of the code of procedure civil for the praise containing provisions contradictory, va Intesa in the meaning that dictates contradictory nature must emerge between the different components of the device, or between the motivation and the device, the the contradictory internal A between the different parts of the motivation, not expressly foreseen between i vices which involve the nullity of the pit, can assume relevance, which vice of the praise, only in " determines the impossibility absolute of reconstruct the logical iter and legal below to the decision per total absence a a motivation attributable to its model functional.