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8Karl-Otto Apel. Transcendental Semiotics and Hypothetical Metaphysics of Evolution : A Peircean or Quasi-Peircean Answer to a Recurrent Problem of Post-Kantian Philosophy[A].Peirce and Contemporary Though-Philosophical Inquiries[M], ed. by Kenneth Laine Ketner, Fordham University Press, New York,1995. f33.
