Combining Texts

You have chosen 'Four Dimensionalism' by Theodore Sider, 'Art and Its Objects' by Richard Wollheim and 'Letters to Mersenne' by Ren Descartes

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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