Combining Texts

You have chosen 'On the Principles of Indiscernibles' by Gottfried Leibniz, '06: Epistle to the Romans' by St Paul and 'How Things Might Have Been' by Penelope Mackie

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All the ideas for Science, or select a subheading:
      A. Basis of Science
      B. Scientific Theories
      C. Induction
      D. Explanation