Kernrechtsfrage
Whether the IV office's and cantonal court's finding that incapacity began in July 2005 could stand and bind the pension fund.
Extrahierter Entscheid
The factual findings were not manifestly incorrect; the retroactive determination of full incapacity from July 2005 was consistent with the medical file and the employer's statement.
Extrahierte Begründung
The cantonal court plausibly relied on the medical reports and the employer's contemporaneous account. The Federal Court found no arbitrariness, no incomplete fact-finding, and no need for further evidence.