Combining Texts

You have chosen 'A Conversation: what is it? What is it for?st1=Gilles Deleuze' by , 'Real Natures and Familiar Objects' by Crawford L. Elder and 'What are Sets and What are they For?' by Oliver,A/Smiley,T

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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