Combining Texts

You have chosen 'New System and Explanation of New System' by Gottfried Leibniz, 'Boole calculus and the Concept script' by Gottlob Frege and 'On the Concept of Number' by David Hilbert

start again     |    choose another area for these texts     |    all the ideas for this combination of texts
All the ideas for Natural Reality, or select a subheading:
      A. Classical Physics
      B. Modern Physics
      C. Space
      D. Time
      E. Cosmology
      F. Chemistry
      G. Biology