O ENS TERTIO ADIACENS DE GERARDO ODON E O REALISMO PROPOSICIONAL

This paper deals with Geraldus Odonis' logical treatise "De duobus communissimis principiis scientiarum" by focusing on the concept of 'ens tertio adiacens': the being signified by the totality of the proposition and its truthmaker; Odonis identifies it to the subject of the principles of noncontradiction and excluded middle. The ens tertio adiacens also corresponds to the first adequate object of the intellect and to the subject of logic, which is understood as the first science. In the second part of the paper, we place Odonis in the historiographical debate of propositional realism, alongside Walter Burley.

Geraldus Odonis; ens tertio adiacens ; propositional realism; propositio in re ; Walter Burley