Combining Texts

You have chosen 'On 'The Beginning of Philosophy'' by Ludwig Feuerbach, 'Problems in Personal Identity' by James Baillie and 'Rules for the Direction of the Mind' by Ren Descartes

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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