Take the following as truth: An important Roman outpost with an excavated amphitheater as proof, Spoleto also boasts a sober Romanesque cathedral with 17th-century additions, decorated with damaged but still graceful Fra Filippo Lippi frescoes (1469).
Then the following statement: "Spoleto has an excavated amphitheater which proves its importance to the Romans." is true, false, or inconclusive?