Questione giuridica chiave
Whether the appeal against the modification judgment was admissible under the LTF
Decisione estratta
The appeal was admissible: the decision was final, issued by a last cantonal instance in a pecuniary family matter, and filed in time by the losing party.
Motivazione estratta
The Court verified the requirements of arts. 72, 75, 90, 51, 74, 76, and 100 LTF.