Lingua characterica

The paper investigates the impact of Leibniz' thought on contemporary philosophy. It focuses on two philosophical issues: (1) the debate on the misunderstandings connected to the formula "lingua characterica", used byGottlob Frege to describe of Leibniz' philosophy; (2) an interesting interpretation of "ars inveniendi" as formulated by Hans Hermes

Frege's argumentation in support of realism

In his work on the foundations of mathematics, Frege placed the problem in a wider context, namely that of science; the ontological status of thought as the carrier of truthfulness became for him the most important issue. The objectivity of truth and thought seems to require the existence of other people, which consequently requires the existence of the world. Thus, the polemics with epistemological idealism became a key issue for Frege; the topic appears in such works as The Basic Laws of Arithmetic, The Logic, and The Thought. What seems to be most interesting in Frege’s work is his stress on weaknesses of both epistemological realism and immanent idealism. Reflecting upon the examples of the physiological psychology and physiology of the senses he demonstrated the process of entrapment in idealism. It is also interesting that he stressed the realistic character of language as well as the constant possibility of committing a mistake by assuming the existence of reference, and dangers of falling into traps of fiction resulting there from

Fregge and Wittgenstein : comments on the failure of the correspondent dialogue

The letters that were found after years are the evidence of hard intellectual work that had been conducted under very infavourable conditions. They refer to the time when Wittgenstein was writing "Tractatus" while Frege was working on his articles "Thought" and "Negation". Correspondence betwee Frege and Wittgenstein prove the common will of communication and mutual understanding. Thus remains the question why those two close and well known to each other thinkers have not realized that willingness