Combining Texts

You have chosen 'An Argument for the Identity Theory' by David Lewis, 'Letters to Oldenburg' by Baruch de Spinoza and 'Essentials of Pragmatism' by Charles Sanders Peirce

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