Combining Texts

You have chosen 'Papers of 1918' by Bertrand Russell, 'Rules for the Direction of the Mind' by Ren Descartes and 'fragments/reports' by Arcesilaus

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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