Combining Texts

You have chosen 'Positivism and Realism' by Moritz Schlick, 'Moral Consciousness and Communicative Action' by Jrgen Habermas and 'Abstract of 'The Fourfold Root'' by Arthur Schopenhauer

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All the ideas for Theory of Logic, or select a subheading:
      A. Overview of Logic
      B. Logical Consequence
      C. Ontology of Logic
      D. Assumptions for Logic
      E. Structures of Logic
      F. Referring in Logic
      G. Quantification
      H. Proof Systems
      I. Semantics of Logic
      J. Model Theory in Logic
      K. Features of Logics
      L. Paradox