Combining Texts

You have chosen 'The Fixation of Belief' by Charles Sanders Peirce, 'Principles of Nature and Grace based on Reason' by Gottfried Leibniz and 'An Axiomatization of Set Theory' by John von Neumann

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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