Combining Texts

You have chosen 'Logicism and Ontological Commits. of Arithmetic' by Harold Hodes, 'I.7 Our deeds are judged by intention' by Michel de Montaigne and 'Abstract of 'The Fourfold Root'' by Arthur Schopenhauer

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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