Sulle tracce del synallagma. Riflessioni su D. 2 .14.7.2 e D. 50.16.19

The contribution examines the perception of synallagma in Roman jurisprudence . Moving from the debate in the literature , and analyzing the sources of the greek law, the A . investigates the reasons why the Roman jurists Labeo and Arista used, in their works, the concept of synallagma. Above ali, the A. tries to answer the question if they used the synallagma in a comparative perspective