Combining Texts

You have chosen 'Symbolic Reasoning' by Hugh MacColl, 'Concepts without Boundaries' by Mark Sainsbury and 'On Fate ('De fato')' by M. Tullius Cicero

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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