Questione giuridica chiave
Whether the withdrawal of the cantonal appeal remained effective and made the appellate proceedings moot.
Decisione estratta
The withdrawal was valid and final; the cantonal appeal had to be struck out.
Motivazione estratta
The appellant did not show that the withdrawal had been induced by deception, a criminal offence, or incorrect official information under Art. 386(3) BGG. Alleged delay and psychological strain did not invalidate the withdrawal.