Prepositional transitivity: the double prepositional object in Spanish

We use the concepts of transitivity and argumentality to analyse a variety of the sintactic and semantic function that has been studied as governed prepositional object, prepositional object and supplement. We have rative sense of these complements and their argument, which is theme. The localist hypothesis and the etymological sense of the prefix determine the presence of the preposition, so we can clasify the double prepositional complements in two groups: the join group (prefix co-) and the separation group (prefix di-).