Fichte’s Science of Knowledge (Wissenschaftslehre) creates the basis his own philosophical system. In this work, it is possible to see main lines "philosophy action", which has become a kind equivalent "Fichte Philosophy" in literature. For Fichte, who identifies philosophy with life, whole adventure complete moments Ego will create action/posit. As matter fact, we can easily that Fichte was co...

It is not usual to think of Fichte as a logician, nor indeed to think of him as leaving a legacy that shaped the subsequent history of symbolic logic. But I argue here that there is such a legacy, and that Fichte formulated an agenda in formal logic that his students (and their students in turn) used to spark a logical revolution. That revolution arguably reached its culmination in the logical ...

260 years since the birth of Fichte give a good reason to turn his Wissenschaftslehre, which, together with Kant’s critical philosophy, is bridge from past future state philosophical and scientific culture. The first second parts article explore little-known Russian historians philosophy controversy about spirit letter teaching, which flared up at end 18th century in Germany had discrepancy bet...

The paper will discuss some changes in Bolzano’s definition of mathematics attested in several quotations from the Beyträge, Wissenschaftslehre and Grössenlehre: is mathematics a theory of forms or a theory of quantities? Several issues that are maintained throughout Bolzano’s works will be distinguished from others that were accepted in the Beyträge and abandoned in the Grössenlehre. Changes w...