Sense, meaning and context principle in Frege

Frege´s context principle, as put forward in Foundations of Arithmetic, is not mentioned in his later writings which might suggest that as a consequence of substituting the notion of judgeable content by sense and meaning, Frege would have abandoned the context principle after 1890. Dummett argues in 1993 that the context principle continues to form a central part of Frege’s language philosophy; theories put forth from volume I of Fundamental Laws of Arithmetic, however, are no longer compatible with the notion of an internalist perspective attributed to Frege by van Heijenoort and Hintikka. I argue currently that Frege not only never abandoned the context principle but all his life maintained his faith en language as universal medium making and therefore held it impossible to establish reference for our terms externally by means of a theory of meaning.