L’impostazione logica della teoria dei princìpi nella Grundlage der gesamten Wissenschaftslehere e il rapporto con una possibile ontologia

The paper aims at explaining the logical frame of Fichte’s Grundlage der gesamten Wissenschaftslehre (in particular the section dedicated to the principles theory) as well as whether and how the I - dialectics can be understood in terms of ontology.Beginning with the Züricher Vorlesungen über den Begriff der Wissenschaftslehre, in the Jena’s years Fichte dealt with the research of the object and the purpose of philosophy. He located both in the principle, and, due to the fact that the logical process is the way how our brain acts in his calculating function, the fastest way to find the principle is the logical process.This could be denied only at the price to deny the evidence of our existence.By discussing this point, I force out the marks of ontology in Fichte Jena’s years, while comparing Fichte’s thought with contemporary philosophy