Combining Texts

You have chosen 'Frege's Concept of Numbers as Objects' by Crispin Wright, 'On Copernicanism and Relativity of Motion' by Gottfried Leibniz and 'Explaining Explanation' by David-Hillel Ruben

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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