Kernrechtsfrage
Whether the federal appeal met the formal requirements of Art. 42 LTF and was therefore admissible.
Extrahierter Entscheid
The appeal did not state actionable conclusions or sufficient reasoning, so it was inadmissible.
Extrahierte Begründung
The appellant merely asserted a 50% incapacity to work since 2003 and requested reconsideration. This did not show why the cantonal findings were incorrect under Art. 97(1) LTF or why the decision violated federal law, as required by Art. 42(1) and (2) LTF.