After René Antoine Gauthier identified in the master Guillaume Arnauld the real author of the Lectura supra logicam veterem attributed to Giles of Rome (Tabarroni 1988), interest in logical works focused mainly on his Commentaries on the Sophistici Elenchi and on Posterior Analytics. In his treatment of the fallacia figurae dictionis Giles proves to be a brilliant and original representative of “modistic logic”, who bases his solutions mainly on the semantics of intentiones (Tabarroni 1991). Thi