Kernrechtsfrage
Whether the refusal to take evidence violated the right to be heard and cantonal procedure
Extrahierter Entscheid
The complaint was inadmissible and, in any event, the requested evidence concerned a legally irrelevant future amount to be received from SAirGroup.
Extrahierte Begründung
The appeal did not identify any concrete means of proof. Moreover, in a solidarity context the claimant need only deduct amounts already received, not hypothetical future recoveries from another debtor.