Combining Texts

You have chosen 'Letter to Shumacher' by Carl Friedrich Gauss, 'A Powers Theory of Modality' by Jonathan D. Jacobs and 'There are no ordinary things' by Peter Unger

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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