Questão jurídica principal
Whether the federal appeal satisfied the formal requirements of Art. 42 BGG.
Decisão extraída
No; the appeal did not contain a legally sufficient request or adequately address the reasoning of the lower court.
Fundamentação extraída
The appellant failed to engage concretely with the cantonal court's findings on the minimum contribution period and did not show any legal error or manifestly incorrect factual findings under Arts. 95 ff. and 97 BGG.