Combining Texts

You have chosen 'Perception' by Howard Robinson, 'Remarks on axiomatised set theory' by Thoralf Skolem and 'On the Nature of the Gods ('De natura deorum')' by M. Tullius Cicero

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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