Key legal question
Whether the cantonal remand judgment was appealable to the Federal Supreme Court
Extracted holding
The remand portion was incident but appealable because it contained binding instructions leaving no discretion on the insured person's status and invalidity method.
Extracted reasoning
A remand is normally incidental, but it becomes challengeable when it definitively resolves a material legal question and binds the authority for the subsequent decision, causing irreparable prejudice.