Abstract

Transcendental pragmatics is the attempt to make Kants transcendental philosophy philosophically defensible by means of a reconstruction in terms of semiotics and the theory of communication. The central theses of transcendental pragmatics are: philosophical final justification is possible. The claim of radical fallibilism: "all propositions are fallible, therefore final justification is impossible" is false. Both theses are defended against H. Keuths critique, recently published in this journal. Radical fallibilism, which admits the application of the principle of fallibility to itself entangles itself pecisely for this reason in a whole raw of contradictions. Keuths objections rest upon a misunderstanding. His critique does not demonstrate the invalidity of reflexive final justification arguments because he misses the essential feature of such arguments namely that they are intended as strictly reflexive arguments