Questione giuridica chiave
Whether the federal constitutional complaint was admissible against the cantonal appellate decision on definitive debt enforcement opening.
Decisione estratta
The complaint was admissible insofar as it challenged the last cantonal decision on definitive debt enforcement opening and raised constitutional objections.
Motivazione estratta
Orders granting or denying definitive opening are final decisions; complaints may also attack the enforceability of the title if nullity is alleged.