Combining Texts

You have chosen 'Cosmic Apprentice' by Dorion Sagan, 'The Origin of Forms and Qualities' by Robert Boyle and 'Rules for the Direction of the Mind' by Ren Descartes

start again     |    choose another area for these texts     |    all the ideas for this combination of texts
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