Римский гражданин Флавий приобрел у перегрина Стикха

The Roman citizen Flavius purchased 10 bulls from the Styrin peregrine. But soon they began to hurt. Flavius decided to go to court, believing that Stykh sold him defective goods. By what law should a dispute be settled: ius civile, ius praetorium or ius gentium?

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