Combining Texts

You have chosen 'Elements of Law and Justice' by Gottfried Leibniz, 'Of Organum or Ars Magna of Thinking' by Gottfried Leibniz and 'Prcis of 'Ruling Passions'' by Simon Blackburn

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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