Combining Texts

You have chosen 'On the Soul (frags)' by Dicaearchus, 'Foundations of Geometry' by David Hilbert and 'Science and Hypothesis' by Henri Poincar

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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