Combining Texts

You have chosen 'Philosophy of Mathematics' by Leon Horsten, 'On the Nature of the Gods ('De natura deorum')' by M. Tullius Cicero and 'Essence and Modality' by Kit Fine

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All the ideas for Formal Logic, or select a subheading:
      A. Syllogistic Logic
      B. Propositional Logic PL
      C. Predicate Calculus PC
      D. Modal Logic ML
      E. Nonclassical Logics
      F. Set Theory ST
      G. Formal Mereology