Combining Texts

You have chosen 'Counterpart theory and Quant. Modal Logic' by David Lewis, 'Intro to 2nd ed of Principia Mathematica' by Bertrand Russell and 'There is immediate Justification' by James Pryor

start again     |    choose another area for these texts     |    all the ideas for this combination of texts
All the ideas for Science, or select a subheading:
      A. Basis of Science
      B. Scientific Theories
      C. Induction
      D. Explanation