Combining Texts

You have chosen 'The Sign of Four' by Arthur Conan Doyle, 'Enquiry concerning Principles of Morals' by David Hume and 'Clitophon' by Plato

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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