Kernrechtsfrage
Whether the complaint was sufficiently reasoned to challenge the denial of definitive debt enforcement for the inflation-adjustment claim.
Extrahierter Entscheid
The complaint did not show, in a legally sufficient manner, why the cantonal court allegedly erred in refusing to recognize a definitive enforcement title.
Extrahierte Begründung
The Federal Court held that the appellant’s arguments did not meet the duty of substantiation under Art. 42(2) BGG; the complaint merely repeated its position on the rent increase formula and the timing of the index calculation, without demonstrating a legal error in the cantonal judgment.