Question juridique clé
Whether the constitutional/public law appeal was sufficiently reasoned under Art. 42 BGG
Solution extraite
The appeal did not address the decisive reasoning of the cantonal court and was therefore insufficiently reasoned.
Motifs extraits
The appellant merely repeated that the tax authority should also proceed against his divorced wife and share the liabilities equally, but he did not engage with the cantonal court's reasoning based on solidarity liability. This failed the reasoning requirement of Art. 42 BGG.