Combining Texts

You have chosen 'works (all lost)' by Aristippus the elder, 'Launching Points to the Realm of the Mind' by Porphyry and 'Reason, Emotions and Good Life' by John Cottingham

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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