Questione giuridica chiave
Whether the pension start date under occupational benefits is bound by the IV decision and whether the cantonal court could set it differently.
Decisione estratta
The occupational pension institution was bound by the IV decision in principle; however, the cantonal court's earlier pension start date was not shown to be obviously wrong, so the appeal failed.
Motivazione estratta
The relevant insured event is the onset of the disabling incapacity for work while insured, not the later emergence of the IV-relevant invalidity. The loss of insured status later does not extinguish liability. The cantonal court's implicit assessment that the IV decision was manifestly incorrect was not demonstrated to be arbitrary.